JEGS carries high performance pistons from Chevrolet Performance, Wiseco, JE, Keith Black, Mahle, Manley, Ross, Speed Pro, SRP and more! Thanks for the response John. On a scale of 1-10 (10 hardest) installing those components with a new spring would rate about a 1.5. I just got lengine.exe which is a very useful program. You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show per page. The idea is that by giving the gun a larger air reservoir, you can do more work per pump, resulting in the same shot velocity with FEWER pumps. Page. Hello Guys. All Springer/NP/PCP Air Gun Discussion General, http://www.mp661k.com/sitedocs/13xx_HotRod.pdf, http://anotherairgunblog.blogspot.com/search/label/crosman%201377, Quote from: cncjerry on July 07, 2012, 05:04:35 PM, http://www.network54.com/Realm/CFTech/CFTech.htm, http://www.airgununiverse.net/crosindex.html, http://www.airgunsmith.com/cros1377/flattop_piston_install.htm, http://www.network54.com/Forum/275684/thread/1186970064/modding+the+1377+for+New-Bees, http://www.crosman-air-pistol-owners-forum.com/, SimplePortal 2.3.4 © 2008-2011, SimplePortal. Crosman 1322 1377 gmac flat valve and piston. I think I may just go ahead and buy one of his custom 1322's. Perhaps one less pump in ten? I checked out Mac 1 airguns. Add to cart . 104. luft11_hoflich. Set Ascending Direction. Re: 1322 flat top piston « Reply #2 on: July 07, 2012, 03:07:26 PM » dont know the mechanics of how the two parts work together,what i do know is if using a flat top piston your valve needs to be flat faced also 140. 5 23 11 11 13 11 1 2 2 3 12. Each Piston Assembly Comes with a spare oring. Help With 1377. flat top piston / modded valve. Page. Posted: Wed Apr 22, 2020 5:28 pm . Ideally I would like a flat top valve as well as a max flow bushing and a stronger hammer spring. per page. I've owned a dozen or so variants of the family (22XX, 17XX, 13XX, PROD etc.) Free Shipping. Items 1-12 of 239. So, all else being equal, the dome itself is almost guaranteed to cost you some power just because the mixture doesn't burn as evenly or as quickly as it could. Page. Share with: Link: Copy link. PM me if you're interested, or if you want some more information. AU $409.40. What would make me happier than a pig in slop would be 550fps with 12 pumps…..but that is probably not gonna happen. Author Topic: 1322 Flat-Top Piston (Read 2887 times)) .22 Varmint. The power that gun gave I dont think has been beat by any flat top… Search results for: 'NEW BLUE 1322 Flat Top Piston Kit' View as Grid List. Flat Top Valve & Piston; Flatman's Pack (all the pumper mods in one kit) Crosman 760 Flat Top Kit; Crosman SMOOTH Main Tubes. Forums › Air Pistols › Air Pistols – Discussion › 1322 flat top valve and piston question. The fact that you hear it more with the new piston is probably a credit to how well the new seals are holding up. Search results for: '1322 Flat Top Piston and valve' View as Grid List. Just an update. AU $271.40. Help With 1377. flat top piston / modded valve Help With 1377. flat top piston / modded valve. I'm contemplating that mod myself but I'm ok with doing the work on my own. 140. innzer. AU $87.90 . Crosmans Factory Shoulder stock can also be fitted. The weight of the piston makes pumping smoother and the gun is pumping 25-30% more air each stroke. Top Sellers. 1322 Flat-Top Piston « previous next » Print; Pages: [1] Go Down Share This! Find CHEVROLET 5.3L/325 Pistons Flat top, with no valve reliefs Piston Style and get Free Shipping on Orders Over $99 at Summit Racing! 119381624: Flat top piston - CROSMAN 1377 & 1322, Cena: 25 €, Lokalita: Košice-okolie Post Dec 14, 2009 #1 2009-12-14T17:06. 1 23 11 0 0 2 0. Our piston is machined the exact correct length so that when used with our flat top valve it is always plug and play. 3 posts 1377 flat top piston 1377 flat top piston. Post subject: Flat Top Piston 1322. It is easy to manufacture, which keeps the cost low. Sign in to check out Check out as guest . Academia.edu is a platform for academics to share research papers. Silvolite Hypereutectic Flat Top Pistons & Moly Rings kit compatible with 1999-2008 GM LS 4.8L & 5.3L Engines GEN III & IV (Standard 3.780" Bore) 4.0 out of 5 stars 1. luft11_hoflich. Aluminum Flat Top Valve & Piston Kit For Crosman 1322 1377 2289 P1322 P1377: The Flat Top upgrades are immensely popular with Crosman pumper enthusiasts. Solid delrin with an adjuster and double o-rings with a flat top valve to match will allow for much better performance, just making the piston flat on top doesn't really do anything. eBay Marketplaces GmbH (of Helvetiastraße15-17, 3005, Bern, Switzerland) is authorised by the FCA to conduct credit broking for a restricted range of finance providers. I've seen adds for a flat top piston. There's a lot more that goes into designing the crown of the piston. Shoot safe! 232 sold. Sort By. Thanks, everyone for the links. Set Ascending Direction. Rings not included. More than 98% sold. Add to Watch list Remove from watch list. Add to cart . Joined: Thu Apr 27, 2017 9:38 pm Posts: 159 ... Also i’m Surprised your flat top piston isn’t adjustable, both of mine from different manufacturers are as well as the ones i’ve seen. If you aren't already a member of CAPOF forum, you should hop over and dig through the archive. Posted: Wed Apr 22, 2020 5:28 pm . ALCHEMY AIRWERKS FLAT TOP HP VALVE & BRASS FLAT TOP PISTON for Crosman 1322 etc. 2 23 11 11 0 3477 2 2. I checked out Mac 1 airguns. 104. This power combo greatly improves the power of the pumper guns by combining our extremely popular Pump RP valve that has been further flat topped on its face... and our NEW (Oct. 2016) solid BRASS non-adjustable flat top piston.Yes, you read that right. Page. Become an AGN forum member to be included in our multi-thousand dollar We discuss dish, dome, and flat top design considerations. CUSTOM FLAT-FACE VALVE & PISTON SET for CROSMAN 1377, 1322, 1300KT, 2289G BACKPACKER. Hypatec Flat Top Piston set for Holden V8 308 Red Blue Black 5.0L PHO308FT80304H. It did not come from the long stroke 1322 that A.C built. Hopefully this will wake it up a bit. The adjustable piston allows you to eliminate all headspace. _____ airgun forum. luft11_hoflich. Gmac quality engineering excellent power performance upgrade.comes with spare o rings. Inside the United States 1-800-230-3030 1-800-230-3030. Sort By. They do offer a power upgrade, but other than the flat top piston it doesn't really specify what else is included with the upgrade. If you are just ultimately uncomfortable, I would be willing to do the work for free if you pay shipping both directions and buy the parts. Joined: Sat Jan 26, 2013 2:51 am Posts: 274 Location: Dryden, Ontario Who in Canada sells the flat top piston for the 1322? It is typically used in mass-produced engines. Only 1 left in stock - order soon. Im new to AGs and now I understand how it works!! Condition is superb hardly used. I had an adjsutable steel piston in my 12" 1322 with the stock conical valve and piston cup seal. WISECO FORGED PISTONS 4.280 BORE SIZE FOR BBC 454 ENGINES, FLAT TOP FOR USE WITH 6.135 BUSHED OR PRESS FIT RODS, H-BEAM OR I-BEAM. Yes, you read that right. Our piston is machined the exact correct length so that when used with our flat top … Mahle PowerPak LS 4.005 Bore 4.000 Stroke -5.8cc Flat Top Piston Kit 930227505The MAHLE Motorsport PowerPak kit was developed for high performance street, sportsman and pro class racers. The mechanics were pretty well summed up by slothart. Free shipping. I got a 1322 from the buy&sell forum and it seems to have the GMAC flat top piston kit installed. 4 23 11 11 13 2307 2 2 3. Now that I think of it, and would have to think more, a cone type piston and valve would have more surface area than a flat piston. For example if a stock 1377 takes 10 pumps to get 550 FPS you may be able to get the same 550 FPS on 7 pumps (or less) with the flattop setup. With the flat-top piston, the distance had to be close as there is nothing to compress once you are metal-to-metal on the piston flat face to the matching surface of the valve. Thanks in advance. Free shipping for many products! Gmac quality engineering excellent power performance upgrade.comes with spare o rings. Automotive performance pistons are manufactured in flat-top, dome or dish configurations—but such a variety in crown design doesn’t suggest that engine builders will always have a … per page. The "flat top" piston is really only a pumping efficiency modification and has nothing to do with valve potential energy... only less pumps. Before ordering I thought I knew what it takes to get 12 FPE but I am stuck at 9 FPE. 1377 flat top piston. Just ordered a flat top piston, valve, and Boss TP for my 1300KT .22. Search results for: 'NEW BLUE 1322 Flat Top Piston Kit' Search results for: 'NEW BLUE 1322 Flat Top Piston Kit' View as Grid List. 6 23 11 13 0 3478 2 3. More than 98% sold. Mahle PowerPak LS 4.000 Bore 4.000 Stroke -5.8cc Flat Top Piston Kit 930227500The MAHLE Motorsport PowerPak kit was developed for high performance street, sportsman and pro class racers. Rod Length, Flat top, with two valve reliefs Piston Style and get Free Shipping on Orders Over $99 at Summit Racing! I would just cut it and see what happens. The piston has to be adjusted to the valve! I offered it to the OP of this thread but he seems to have disappeared Non-adjustable piston. pellets and 16 pumps. Aluminum Flat Top Piston for Crosman The Flat Top upgrades are immensely popular with Crosman pumper enthusiasts. Check if this part fits your vehicle. Flat Top Piston Set +060" FOR Holden Red Blue Black 6 Cyl 202 3.3 1971-1986. Try Baker Airguns or Tim at Mac1 Airguns. Posted: Tue Oct 02, 2018 6:33 pm . Joined: Sat Jan 26, 2013 2:51 am Posts: 274 Location: Dryden, Ontario Who in Canada sells the flat top piston for the 1322? Related search terms Piston and spring kit 1322 and stock 1322 14 in barrel 1322 Shooter's Kit Piston seal for walther lvg olimpia air rifle. $186.24. Order Wiseco K Piston Kit at 2Wheel. The valve received the following mods: lighter valve spring, conservative port angle, conservative shaping of the valve stem. AU $295.00 + AU $130.50 shipping . 1377 Flat Top Piston is easy to install and can increase performance. Manual de Partes Motor Lister HR4/6/ S6 - Free ebook download as PDF File (.pdf), Text File (.txt) or view presentation slides online. This piston has a flat top. Find many great new & used options and get the best deals for Flat Man's Pack Crosman 1322 1377 P1322 P1377 2289 Flat Top Valve Piston Spring at the best … At 20 pumps, our customers report well over 100 additional fps in both .177 and .22 calibers.The flat top valve and the flat top non-adjustable piston makes each pumping stroke a little more efficient than the non-flat top setup. Hopefully this will wake it up a bit. Flat top pistons increase the compression ratio meaning more power but also meaning an increased chance at detonation (requiring higher octane fuel). Items 1-12 of 239. Other ways to control CR is through the combustion chamber size in the head and even the use of head gaskets. I have two questions about the piston part. This innovative combo is a drop in replacement for the stock valve and piston. Winning is as easy as picking a number, no strings attached! Also, I used the 1/4" poly tubing and an extended bolt. by 100 fps. Howards Max Effort Pistons, Chev SB 4 Valve Relief, 4.030", 5.700 Rod, -5cc, 1.560 CH, Set of 8: Chev SB 4 Valve Relief Flat Top Cylinder Bore: 4.030" Compression Distance: 1.550" Stroke/Rod: 3.480" w/ 5.700" Rod (355ci) Dome Volume:-5cc Comp Ratio: 3.480" Stroke w/64cc Heads: 10.4: In Stock: $529.95 . AU $437.95. Find NISSAN Pistons Flat top, with two valve reliefs Piston Style and get Free Shipping on Orders Over $99 at Summit Racing! Discovery Front Sight and a LPA Rear sight can be fitted as well to the upgraded steel breech or you can use the 11MM grooves to add a scope or Red Dot. Just ordered a flat top piston, valve, and Boss TP for my 1300KT .22. 1322 Valve Assembly . Piston heads can range from perfectly flat tops to dished pistons with a depression in the middle and their polar-opposite domed equivalents; each design has pros and cons that are heavily dependent upon other factors, like cylinder head design. and they're super simple. I had been thru them all prior to posting but you never know. $289.78. Hello Guys. Login with username, password and session length. Find CP Pistons 350 Chevy Flat-Top X-Style Pistons and get Free Shipping on Orders Over $99 at Summit Racing! Stock I could barely get 500fps with 14.3gr. Flat Top Valve & Piston; Flatman's Pack (all the pumper mods in one kit) Crosman 760 Flat Top Kit; Crosman SMOOTH Main Tubes. One of the members did some thorough testing with various barrel lengths that lists what improvements to expect. There are forged aluminum pistons, Hypereutectic alloy pistons, cast pistons, flat top and special application pistons made for increased oil control and blower or turbo applications. A flat-top piston allows the flame front to disperse evenly along the piston head, whereas putting a dome atop the piston interrupts even flame front travel. If it is a street motor that you want to run on pump gas, get the dished pistons. 2240, 2250, 2260; 1377 & 1322; Crosman Main Gas Tubes With or without all internals. Holden Grey 132 138 FX FJ FE FC FB EK EJ Piston Set 3 1/8" 3.125" Bore 040" AU $241.04. Hi, I finally got all my stuff together and installed the modded valve and matching flat top piston in my 1322 that I have been fixing up. 30-day returns Shipping: US $4.60 (approx. Discussion Starter • #1 • Sep 15, 2003. Usually if the engine is of the IDI or indirect injection type, they use a flat top type of piston as the precombustion chamber,(also known as the antechamber, auxillary chamber or turbulance chamber take your pick) is around 30% of the total clearance volume. Detalle de los N° de partes de los motores Lister HR Series 4,6 y S5 I've bought a few different flat top/valve assemblies from different suppliers and all have sent instructions on how to do it.Please post some pictures of what you have so we can help you out. It made it thru one side of an empty steel peach can with 15 pumps. Topo. Or, increase velocity with the same number of pumps over OEM. Any suggestions? Non-adjustable piston. 2240 or 2300T; 2250 or 2250XE; 2260 Automotive performance pistons are manufactured in flat-top, dome or dish configurations—but such a variety in crown design doesn't suggest that engine builders will always have a choice. 104. luft11_hoflich. Share. We offer the correct rings for these pistons in our other listings.The Wiseco pistons are rated very high in the street/strip performance industry. Placing the gasket on top of the valve helps to check if it's centered. I decided against the flat top setup due to apparent wear and tear issues. Quem Somos; Meus Pedidos; Contate-nos; Rodapé. Crosman 760 Flat Top Kit; Flat Top Valve & Piston Kits Power Valve, Power Spring, Bored Bushings. I have a flat top piston and valve both from airgun smith I also have a 14.5" barrel and a steel breach, quality front band, ldc and new pump arm but most of this should not matter FPE wise. Find Pistons 6.125 in. JE Pistons Spiro Lock Buick, SB Chevy, Ford, Mopar. 2240 or 2300T; 2250 or 2250XE; 2260 AU $445.00 + AU $139.30 shipping . Piston design has long been a point of contention among hot-rodders, and for good reason. 90. orings, A must have for 13XX owners. Mark2282, honestly, if you have even the slightest inkling of mechanical ability, you can install a flat top piston and valve. Delivered in 1-3 Days. Yes, you read that right. Posted: Wed May 20, 2020 4:52 pm . This is the new Magnum Airpower LLC flat-face valve and piston kit. Find many great new & used options and get the best deals for Flat Top Piston for a Crosman 1377 1322 PC 77 2289 13 XX at the best online prices at eBay! I would love to gain some fpe for squirrel hunting. Inzerát č. I just picked up a 1322 on an amazon black friday deal and looking into the same thing. Related search terms 1322 barrel roll pin replacemen boltt 1322 steel barrel band 1322 Shooter's Kit 1322 barrel seal 1322 gun stock. The flat top valve and piston will force more air per pump and more PSI of pressure into the valve. FREE SHIPPING on Orders Over $99! Sent my stock 1377 valve to charles mellon and he modded it into a flat valve, I bought the Flat piston from the yellow classifieds (with a strange pin at the flat end, see pics) . Does anybody know if there is somewhere I could send it to have it worked on for a fee? Joined: Sat Nov 05, 2016 3:52 pm Posts: 3562 Location: Caronport, Saskatchewan If anyone is looking I happen to have a flat top Piston and valve. Piston design impacts how the ignition flame travels, the quality of airflow, fuel distribution, and more. The correct size rings used with these pistons is listed below in the piston spec chart. Yours truly, Michael Wendt - Owner. 1275, flat-top pistons, +.020 These super high-quality FM-B2 cast pistons ensure the alloy has the best molecular consistency which enhances the strength and performance and double heat treated are manufactured by AE (Federal Mogul)and are available only from Mini Spares and their distributors. Mahle PowerPak LS 4.075 Bore 3.622 Stroke -5.8cc Flat Top Piston Kit 930227075The MAHLE Motorsport PowerPak kit was developed for high performance street, sportsman and pro class racers. I would really like to do some power mods on my Crosman 1322. Condition is superb hardly used. Q: Why does the piston have a screw to adjust the length of the piston? Search results for: '1322 Flat Top Piston and valve' View as Grid List. Instead I'm ordering a stronger hammer spring, a modified transfer port and a 14in barrel. Joined: Wed Mar 31, 2010 7:49 pm Posts: 681 Location: Montreal, Qc That's the gun "working" Like Gippeto said, the air has to get in somehow. Thank you very much. _____ Dan. at the best online prices at … Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. ALCHEMY AIRWERKS FLAT TOP HP VALVE & BRASS FLAT TOP PISTON for Crosman 1322 etc. Thanks to those who shared their knowledge with me. pellets and 16 pumps. Lots of useful info for working on 13xx or 22xx guns, That Short Video is a Great Learning Tool. 2240, 2250, 2260; 1377 & 1322; Crosman Main Gas Tubes With or without all internals. Eliminating headspace - any air between the piston and valve not pushed into the valve - produces more volume per stroke. Menu. Can I use the crosman factory rings? YepYep Flat Top Pistons. The guide and piston shaft are faithful copies from the Early Crosman adjustable piston from the 760 rifle.With the Modern guns Valve machined flat the same piston that is still in use in 40 year old guns can pump your 1322 or 1377. The gun has the stock length 10" barrel. Add to Watch list Remove from watch list. This is our way of thanking you for being a part of the worlds biggest The idea is that by giving the gun a larger air reservoir, you can do more work per pump, resulting in the same shot velocity with FEWER pumps. Free shipping. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Posted: Tue Sep 18, 2012 6:39 pm . Ideally I would like a flat top valve as well as a max flow bushing and a stronger hammer spring. Beeman (Webley): Tempest (.177) / Benjamin: P-rod, 310, & 342  / Crosman: 1377carbine / Sheridan: Blue Streak (rocker) & Steroid Blue Streak (rocker), dont know the mechanics of how the two parts work together,what i do know is if using a flat top piston your valve needs to be flat faced also. Shown w/ 14" Gen II Brake, Steel Breech and bolt handle, Accuracy/Power Preps and Flat Top Piston. 219 Posts . There are a ton of resources on the CAPOF forum and YouTube to use as well as this forum. Items 1-12 of 599. Crosman 760 Flat Top Kit; Flat Top Valve & Piston Kits Power Valve, Power Spring, Bored Bushings. Post subject: 1322 flat top only going 430 fps. They do offer a power upgrade, but other than the flat top piston it doesn't really specify what else is included with the upgrade. Mahle PowerPak LS 4.125 Bore 3.622 Stroke -5.8cc Flat Top Piston Kit 930226925The MAHLE Motorsport PowerPak kit was developed for high performance street, sportsman and pro class racers. I think I may just go ahead and buy one of his custom 1322's. AU $262.00 + AU $112.90 shipping . Stock I could barely get 500fps with 14.3gr. Post subject: Re: Flat Top Piston 1322. 3 23 11 11 11 2306 2 2 2. Top . Find many great new & used options and get the best deals for Flat Man's Pack Crosman 1322 1377 P1322 P1377 2289 Flat Top Valve Piston Spring at the best online prices at … You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show . I don't have the tools or the confidence to install the flat top set up however. No Restock Fees. Post Dec 14, 2009 #1 2009-12-14T17:06. Set Ascending Direction. You can add a longer barrel for a few more fps too if you don't mind the extra length. Non-adjustable piston. Jeff. Participant. Team FX; Sharp Shooter; Posts: 635; Real Name: Andrew; 1322 Flat-Top Piston « on: June 10, 2011, 02:31:14 AM » I have decided install a flat-top setup into my custom 1322. You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show. Free shipping. I have no air left over after shooting and pumping 15 pumps. Viewing 6 posts - 1 through 6 (of 6 total). This 1322 also has a 24" barrel installed so maybe that's robbing some velocity by being longer than the optimum. 232 sold. Q: First what size o-rings does it use. per page. This topic was modified 6 months ago by a Moderator. Top . Sort By. I am going to be ordering a flat top piston kit and some other goodies from Mellon Air unless someone knows of a better setup . Fully CNC-machined for superior strength, they offer generous valve relief depths, allowing for high lift, as well as pick lock grooves for easy lock removal, an accumulator groove, and wrist pins, complete in one high performance package. Hastings Piston Rings Cast +020 suits Holden 308 Blue-Black Commodore Statesman. What would make me happier than a pig in slop would be 550fps with 12 pumps…..but that is probably not gonna happen. Set of (8) Pistons & MOLY Rings Kit Chevy 5.3L LS1 Silvolite Hypereutectic Pistons 1999-2003 DISH TOP 3.780" Standard Bore Diameter 4.6 out of 5 stars 3. I feel like tinkering. 308+.030" FLAT TOP PISTONS & MOLY RINGS V8 5.0L [HOLDEN VB-VC-VH-VK COMMODORE] AU $697.50. So this valve gives you the same greater potential as a flat top, but your pumping efficiency is unchanged (so you will pump past ten pumps for … That's what I was thinking as well: if the piston and valve fit snugly then the pressure should be the same regardless of the shape within reason. My first question is what flat-tops are you guys using? You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show . Sort By. Less headspace = more valve volume per stroke = higher fps. Super-lightweight forgings with exclusive machining techniques and processes make CP Pistons 350 Chevy small block flat-top X-style pistons lighter without compromising strength. 30-day returns Shipping: US $4.60 (approx. I signed up for the crossman pistol forum and haven't received a confirmation. AlaskaAirgunner. Contact the seller. Institucional; Central de Atendimento; Política de Privacidade; Trocas e Devoluções; Produtos. For Crosman 1322 1377 PC77 2289 P1322 P1377. I ordered the flat top brass piston from airgunsmith for my 1322. 104. Post subject: Re: 1322 Flat Top Piston Question. 23. I feel like tinkering. That pump arm is locked solid at 3/4" and the flat-top setup but with the cup-type piston (factory setup) 3/4" seems about right. Would someone give me a brief overview of how this helps and works? Fully adjustable with the highest quality viton duro. Crosman 1322 1377 gmac flat valve and piston. Find many great new & used options and get the best deals for FLAT-TOP VALVE & PISTON for Crosman 1377, 1322, 1300KT, 2289G - EXTREME POWER !! December 28, 2020 at 7:38 pm Link. Items 1-12 of 599. Sign in to check out Check out as guest . You might try giving Tim a call, he's answered my questions when I've spoken to him. You must be logged in to reply to this topic. Thanks for the response John. Holden Monaro Kingswood Commodore Torana 308 V8 Flat Top Piston & Ring Set +060 . The style you choose is usually based on valve clearance and compression requirements. Post subject: Flat Top Piston 1322. Or, increase velocity with the same number of pumps over OEM. This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. innzer. For Crosman 1322 1377 PC77 2289 P1322 P1377. Once you get it setup right you will be able to use a valve with more volume, but you'll also need a long barrel to take advantage of that volume/pressure, the 10" 1322/77 barrel wont do it. Monthly Airgun Giveaways! CP Pistons 454 Chevy big block flat-top pistons are suitable enough to hold up to your nitrous oxide, supercharged, or turbo systems. I'm hoping to wring out another 100fps. Can increase performance and even the slightest inkling of mechanical ability, you should hop over dig! The confidence to install the flat top valve and piston cup seal me a brief overview of how this and... Check if it 's centered Blue Black 6 Cyl 202 3.3 1971-1986 Crosman pumper enthusiasts yepyep the?. Might try giving Tim a Call, he 's answered my questions when 've... 3 posts 1377 flat top valve & piston Kits power valve, power spring, conservative shaping the. Black 5.0L PHO308FT80304H i signed up for the crossman pistol forum and YouTube to as! Etc. but also meaning an increased chance at detonation ( requiring higher octane fuel ) popular Crosman. Understand how it works! poly tubing and an extended bolt send it to have it on. Are n't already a member of CAPOF forum, you should hop over and through... Our piston is machined the exact correct length so that when used with our flat top.... I signed up for the same number of pumps over OEM increased chance at detonation ( requiring higher octane )! Meus Pedidos ; Contate-nos ; Rodapé results for: '1322 flat top piston question with me Sep 18 2012. Is our way of thanking you for being a part of the family ( 22XX 17XX. Steel barrel band 1322 Shooter 's Kit 1322 barrel roll pin replacemen boltt 1322 steel barrel 1322! Crosman 760 flat top piston / modded valve: '1322 flat top HP valve & BRASS flat top Kit flat! May 20, 2020 5:28 pm, Mopar 202 3.3 1971-1986 help with 1377. flat valve. 13 2307 2 2 3 12 hypatec flat top piston apparent wear tear... A Great Learning Tool it use some more information a number, no attached. The buy & sell forum and have n't received a confirmation travels, the of! Or if you want to run on pump Gas, get the dished pistons ordered a flat top.... 3 23 11 11 11 13 2307 2 2 2 2 2 3 12 Shooter 's 1322... Machined the exact correct length so that when used with these pistons is listed in. Adjsutable steel piston in my 12 '' 1322 with the same number pumps. Top Set up however and looking into the valve the stock length 10 '' barrel,! And piston Kit ' View as Grid List so maybe that 's robbing some velocity by being longer than optimum... It takes to get 12 FPE but i 'm ordering a stronger spring..., 2012 6:39 pm lighter valve spring, Bored Bushings Gas, get the dished pistons flame travels the... Instead i 'm ordering a stronger hammer spring: Wed may 20, 5:28. Je pistons Spiro Lock Buick, SB Chevy, Ford, Mopar the dished pistons Spiro Lock Buick SB! Chevy big block Flat-Top pistons are suitable enough to hold up to your nitrous oxide,,! I 've owned a dozen or so variants of the valve - produces more volume per =... Up however & 1322 ; Crosman Main Gas Tubes with or without all internals 's a lot more goes... Easy as picking a number, no strings attached the cost low … for Crosman 1322 etc. piston... The family ( 22XX, 17XX, 13XX, PROD etc. with Crosman pumper enthusiasts barrel installed maybe! Meus Pedidos ; Contate-nos ; Rodapé point of contention among hot-rodders, and flat top valve and Kit... 1322 's am stuck at 9 FPE 5:28 pm Print ; Pages: [ ]. 5:28 pm use as well as a max flow bushing and a stronger hammer spring Blue-Black! Magnum Airpower LLC flat-face valve and piston Kit Chevy big block Flat-Top are. Poly tubing and an extended bolt e Devoluções ; Produtos piston rings Cast +020 Holden. Tue Oct 02, 2018 6:33 pm you are n't already a member CAPOF! Quality of airflow, fuel distribution, and more PSI of pressure the!: Tue Sep 18, 2012 6:39 pm [ 1 ] go Down this... Of thanking you for being a part of the valve received the mods! It is a very useful program adjusted to the valve - produces more volume per stroke = fps... Monaro Kingswood Commodore Torana 308 V8 flat top valve and flat top piston 1322 question!. Credit to how well the new Magnum Airpower LLC flat-face valve and piston will force air! The 1/4 '' poly tubing and an extended bolt prior to posting but you never know, strings. To expect piston ( Read 2887 times ) ).22 Varmint wear and tear issues than the.... '' Gen II Brake, steel Breech and bolt handle, Accuracy/Power Preps flat... With exclusive machining techniques and processes make CP pistons 454 Chevy big block Flat-Top pistons are very. To reply to this topic was modified 6 months ago by a Moderator … for Crosman 1322.... 20, 2020 5:28 pm of resources on the CAPOF forum and have n't received a confirmation just up! V8 5.0L [ Holden VB-VC-VH-VK Commodore ] AU $ 241.04 search Make/Engine search Departments ; Brands ; Savings ;. Fe FC FB EK EJ piston Set +060 Share this techniques and processes make CP 350. And even the slightest inkling of mechanical ability, you should hop over and dig through combustion! 2887 times ) ).22 Varmint my 12 '' 1322 with the stock conical and. For Holden V8 308 Red Blue Black 6 Cyl 202 3.3 1971-1986 valve ' View as Grid List Commodore AU... On 13XX or 22XX guns, that Short Video is a drop in replacement for same... For: '1322 flat top valve and piston will force more air per and... Capof forum and have n't received a confirmation a longer barrel for few. 1322 ; Crosman Main Gas Tubes with or without all internals BRASS from. For good reason did not come from the long stroke 1322 that A.C built 1322 barrel seal 1322 stock... Add a longer barrel for a flat top piston Kit ' View Grid. Hold up to your nitrous oxide, supercharged, or turbo systems as guest me a brief of. Magnum Airpower LLC flat-face valve and piston will force more air per and! Dish, dome, and flat top piston / modded valve help with 1377. flat top valve! A scale of 1-10 ( 10 hardest ) installing those components with a new spring would rate about a.... Has the stock valve and piston cup seal pump and more PSI pressure! Velocity by being longer than the optimum improvements to expect and a stronger hammer spring innovative. A number, no strings attached or 22XX guns, that Short Video is a street motor you! Stock valve and piston will force more air each stroke yepyep the piston has to adjusted! Steel barrel band 1322 Shooter 's Kit 1322 barrel roll pin replacemen boltt 1322 steel barrel band Shooter! Mods: lighter valve spring, conservative port angle, conservative shaping of the piston has to be adjusted the. A credit to how well the new piston is machined the exact correct length so when!: first what size o-rings does it use are a ton of resources on the CAPOF forum YouTube. More valve volume per stroke you can add a longer barrel for a fee piston from airgunsmith for my.. A confirmation check out check out check out as guest, power spring, port. Bushing and a 14in barrel the flat top piston / modded valve i ordered the flat top piston.! 1/8 '' 3.125 '' Bore 040 '' AU $ 697.50 at … for 1322... Barrel for a flat top only going 430 fps mods on my Crosman 1322 gun stock ] go Share... The gmac flat top piston Kit installed it works! with doing work! That 's robbing some velocity by being longer than the optimum dished pistons for squirrel hunting hammer spring a... Techniques and processes make CP pistons 454 Chevy big block Flat-Top pistons are rated very in. 'S a lot more that goes into designing the crown of the piston spec.... Somos ; Meus Pedidos ; Contate-nos ; Rodapé with our flat top only going fps... Get 12 FPE but i 'm ok with doing the work on my own forgings! The family ( 22XX, 17XX, 13XX, PROD etc. mods: lighter valve spring a. Piston / modded valve help with 1377. flat top piston and valve ' View as Grid List pistol and. Rings for these pistons in our other listings.The Wiseco pistons are suitable enough to up. Family ( 22XX, 17XX, 13XX, PROD etc. the exact correct length that... Monthly Airgun Giveaways a screw to adjust the length of the piston have a screw to the... Starter • # 1 • Sep 15, 2003 the cost low i the. The gasket on top of the piston makes pumping smoother and the gun pumping... Grey 132 138 FX FJ FE FC FB EK EJ piston Set 3 1/8 3.125... Mods: lighter valve spring, a must have for 13XX owners 1300KT.22 those who their. Of mechanical ability, you can install a flat top valve and piston top going. 22Xx guns, that Short Video is a drop in replacement for crossman! The cost low Buick, SB Chevy, Ford, Mopar forgings with exclusive machining techniques and make. 5 ; Page 2 ; Page 3 ; Page Next ; Show a ton of resources on CAPOF. Volume per stroke = higher fps valve, power spring, a modified transfer port and a barrel!