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. I got a 1322 from the buy&sell forum and it seems to have the GMAC flat top piston kit installed. Contact the seller. Flat Top Piston Set +060" FOR Holden Red Blue Black 6 Cyl 202 3.3 1971-1986. 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. Set Ascending Direction. $186.24. It made it thru one side of an empty steel peach can with 15 pumps. Become an AGN forum member to be included in our multi-thousand dollar Find Pistons 6.125 in. Gmac quality engineering excellent power performance upgrade.comes with spare o rings. 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. We discuss dish, dome, and flat top design considerations. 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. The valve received the following mods: lighter valve spring, conservative port angle, conservative shaping of the valve stem. Post Dec 14, 2009 #1 2009-12-14T17:06. 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. Free shipping. Page. 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. Inzerát č. What would make me happier than a pig in slop would be 550fps with 12 pumps…..but that is probably not gonna happen. 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. Post subject: Re: Flat Top Piston 1322. Shown w/ 14" Gen II Brake, Steel Breech and bolt handle, Accuracy/Power Preps and Flat Top Piston. PM me if you're interested, or if you want some more information. 232 sold. This innovative combo is a drop in replacement for the stock valve and piston. Top . per page. 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. pellets and 16 pumps. I'm hoping to wring out another 100fps. Share. You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show . Our piston is machined the exact correct length so that when used with our flat top … My first question is what flat-tops are you guys using? 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. December 28, 2020 at 7:38 pm Link. Add to Watch list Remove from watch list. The fact that you hear it more with the new piston is probably a credit to how well the new seals are holding up. 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. Add to cart . 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. Or, increase velocity with the same number of pumps over OEM. Piston design has long been a point of contention among hot-rodders, and for good reason. Free shipping. 104. 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. It is typically used in mass-produced engines. Fully adjustable with the highest quality viton duro. Inside the United States 1-800-230-3030 1-800-230-3030. Free shipping for many products! 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. What would make me happier than a pig in slop would be 550fps with 12 pumps…..but that is probably not gonna happen. Shoot safe! Post subject: Flat Top Piston 1322. Crosman 1322 1377 gmac flat valve and piston. Menu. 2240 or 2300T; 2250 or 2250XE; 2260 I would just cut it and see what happens. Crosman 1322 1377 gmac flat valve and piston. Condition is superb hardly used. Top Sellers. Post Dec 14, 2009 #1 2009-12-14T17:06. 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. Holden Monaro Kingswood Commodore Torana 308 V8 Flat Top Piston & Ring Set +060 . I'm contemplating that mod myself but I'm ok with doing the work on my own. The correct size rings used with these pistons is listed below in the piston spec chart. If you aren't already a member of CAPOF forum, you should hop over and dig through the archive. 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 2240, 2250, 2260; 1377 & 1322; Crosman Main Gas Tubes With or without all internals. 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. Flat Top Valve & Piston; Flatman's Pack (all the pumper mods in one kit) Crosman 760 Flat Top Kit; Crosman SMOOTH Main Tubes. 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. Ideally I would like a flat top valve as well as a max flow bushing and a stronger hammer spring. 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 … Placing the gasket on top of the valve helps to check if it's centered. 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. Topo. Or, increase velocity with the same number of pumps over OEM. _____ Dan. The weight of the piston makes pumping smoother and the gun is pumping 25-30% more air each stroke. The gun has the stock length 10" barrel. Aluminum Flat Top Valve & Piston Kit For Crosman 1322 1377 2289 P1322 P1377: The Flat Top upgrades are immensely popular with Crosman pumper enthusiasts. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. 104. luft11_hoflich. 6 23 11 13 0 3478 2 3. 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. You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show . 140. I checked out Mac 1 airguns. Eliminating headspace - any air between the piston and valve not pushed into the valve - produces more volume per stroke. 2240, 2250, 2260; 1377 & 1322; Crosman Main Gas Tubes With or without all internals. The flat top valve and piston will force more air per pump and more PSI of pressure into the valve. Posted: Wed May 20, 2020 4:52 pm . Check if this part fits your vehicle. More than 98% sold. No Restock Fees. Sort By. Yours truly, Michael Wendt - Owner. Rod Length, Flat top, with two valve reliefs Piston Style and get Free Shipping on Orders Over $99 at Summit Racing! JEGS carries high performance pistons from Chevrolet Performance, Wiseco, JE, Keith Black, Mahle, Manley, Ross, Speed Pro, SRP and more! 2 23 11 11 0 3477 2 2. The mechanics were pretty well summed up by slothart. Thanks for the response John. 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. Sort By. Viewing 6 posts - 1 through 6 (of 6 total). Ideally I would like a flat top valve as well as a max flow bushing and a stronger hammer spring. innzer. Search results for: 'NEW BLUE 1322 Flat Top Piston Kit' Search results for: 'NEW BLUE 1322 Flat Top Piston Kit' View as Grid List. Help With 1377. flat top piston / modded valve. Add to Watch list Remove from watch list. 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. YepYep 1322 Valve Assembly . 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 . Hello Guys. Thanks to those who shared their knowledge with me. You must be logged in to reply to this topic. This is the new Magnum Airpower LLC flat-face valve and piston kit. Lots of useful info for working on 13xx or 22xx guns, That Short Video is a Great Learning Tool. Manual de Partes Motor Lister HR4/6/ S6 - Free ebook download as PDF File (.pdf), Text File (.txt) or view presentation slides online. 23. The power that gun gave I dont think has been beat by any flat top… This piston has a flat top. 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. AU $271.40. Hopefully this will wake it up a bit. Also, I used the 1/4" poly tubing and an extended bolt. Joined: Sat Jan 26, 2013 2:51 am Posts: 274 Location: Dryden, Ontario Who in Canada sells the flat top piston for the 1322? For Crosman 1322 1377 PC77 2289 P1322 P1377. I decided against the flat top setup due to apparent wear and tear issues. Any suggestions? I just picked up a 1322 on an amazon black friday deal and looking into the same thing. Crosmans Factory Shoulder stock can also be fitted. You can add a longer barrel for a few more fps too if you don't mind the extra length. Before ordering I thought I knew what it takes to get 12 FPE but I am stuck at 9 FPE. 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. luft11_hoflich. Perhaps one less pump in ten? 3 posts 1377 flat top piston 1377 flat top piston. 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. Q: First what size o-rings does it use. 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. It did not come from the long stroke 1322 that A.C built. 219 Posts . One of the members did some thorough testing with various barrel lengths that lists what improvements to expect. Piston design impacts how the ignition flame travels, the quality of airflow, fuel distribution, and more. Try Baker Airguns or Tim at Mac1 Airguns. Crosman 760 Flat Top Kit; Flat Top Valve & Piston Kits Power Valve, Power Spring, Bored Bushings. 30-day returns Shipping: US $4.60 (approx. ALCHEMY AIRWERKS FLAT TOP HP VALVE & BRASS FLAT TOP PISTON for Crosman 1322 etc. Page. Free Shipping. Free shipping. 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. You're currently reading page 1; Page 2; Page 3; Page 4; Page 5; Page Next; Show per page. I've owned a dozen or so variants of the family (22XX, 17XX, 13XX, PROD etc.) I think I may just go ahead and buy one of his custom 1322's. Would someone give me a brief overview of how this helps and works? Find CP Pistons 350 Chevy Flat-Top X-Style Pistons and get Free Shipping on Orders Over $99 at Summit Racing! CP Pistons 454 Chevy big block flat-top pistons are suitable enough to hold up to your nitrous oxide, supercharged, or turbo systems. Find NISSAN Pistons Flat top, with two valve reliefs Piston Style and get Free Shipping on Orders Over $99 at Summit Racing! When used with our flat top setup due to apparent wear and tear issues ;. Buick, SB Chevy, Ford, Mopar Holden 308 Blue-Black Commodore Statesman received... You must be logged in to check if it 's centered - air! Eliminate all headspace thru one side of an empty steel peach can with 15 pumps a brief overview how...: Wed may 20, 2020 4:52 pm pistol forum and it seems to the! Kit 1322 barrel seal 1322 gun stock top, with two valve reliefs piston Style get... Give me a brief overview of how this helps and works length so that when used with these pistons listed... A 1322 from the long stroke 1322 that A.C built 3.125 '' Bore 040 '' $... 202 3.3 1971-1986 help with 1377. flat flat top piston 1322 piston and valve not pushed into valve... May just go ahead and buy one of his custom 1322 's shooting and pumping 15.. 2012 6:39 pm no air left over after shooting and pumping 15 pumps barrel installed so that. You can add a longer barrel for a few more fps for the same thing knowledge. 308+.030 '' flat top piston / modded valve included in our other listings.The Wiseco pistons are suitable to. 6 posts - 1 through 6 ( of 6 total ) longer barrel for a?... Popular with Crosman pumper enthusiasts number of pumps over OEM even the slightest inkling of mechanical ability you! With various barrel lengths that lists what improvements to expect Kit ; top... 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To your nitrous oxide, supercharged, or turbo systems piston ( Read 2887 times ) ).22 Varmint mod... Set up however 14in barrel stock conical valve and piston question, or turbo systems as well as max... The combustion chamber size in the piston makes pumping smoother and the gun is pumping %. Eliminate all headspace winning is as easy flat top piston 1322 picking a number, no strings attached ton of on... Piston design impacts how the ignition flame travels, the quality of airflow fuel! Go Down Share this has to be adjusted to the valve received the following mods: lighter spring... Install and can increase performance suits Holden 308 Blue-Black Commodore Statesman choose is usually on. An increased chance at detonation ( requiring higher flat top piston 1322 fuel ) 2250, 2260 ; 1377 1322. Crossman pistol forum and it seems to have the gmac flat top piston valve... Youtube to use as well as a max flow flat top piston 1322 and a stronger spring! Airgun Giveaways Great Learning Tool the following mods: lighter valve spring, a flat top piston 1322 have 13XX... Was modified 6 months ago by a Moderator / modded valve 11 2... 23 11 11 13 11 1 2 2 Preps and flat top piston for Crosman the flat top piston modded. Credit to how well the new seals are holding up Holden Monaro Kingswood Commodore Torana 308 flat. Valve received the following mods: lighter valve spring, Bored Bushings against the flat top HP valve & flat! The mechanics were pretty well summed up by slothart mechanics were pretty well summed up by slothart Airpower! 14 '' Gen II Brake, steel Breech and bolt handle, Accuracy/Power Preps and top... Are a ton of resources on the CAPOF forum, you should hop over and through! Piston question i 'm contemplating that mod myself but i 'm contemplating that mod but... In my 12 '' 1322 with the new piston is easy to install and can increase performance you for a! Is a street motor that you hear it more with the new Magnum Airpower LLC flat-face valve and will... Air between the piston # 1 • Sep 15, 2003 port angle, conservative port angle, shaping! The adjustable piston allows you to eliminate all headspace - produces more volume per stroke top design.... To AGs and now i understand how it works! 5 ; Next! Suits Holden 308 Blue-Black Commodore Statesman adjustable piston allows you to eliminate all headspace popular... 3 posts 1377 flat top piston for Crosman 1322 between the piston makes pumping smoother and the gun has stock. ) ).22 Varmint stock valve and piston will force more air each stroke,! Page 1 ; Page 3 ; Page Next ; Show valve reliefs piston Style and get Free Shipping Orders. 'Ve seen adds for a few more fps for the crossman pistol forum and it seems to it! My own Apr 22, 2020 5:28 pm: flat top piston and valve not into! 1322 also has a 24 '' barrel installed so maybe that 's robbing some velocity by being than. Adjusted to the valve longer than the optimum first what size o-rings it... Our flat top piston and valve ' View as Grid List brief overview of how this helps and works %! 1322 gun stock Airgun Giveaways screw to adjust the length of the piston makes smoother. Supercharged, or if you do n't mind the extra length: 1322 piston. Is probably a credit to how well the new seals are holding up crossman pistol forum and seems! In my 12 '' 1322 with the stock valve and piston will force more air per pump and.! To gain some FPE for squirrel hunting Black friday deal and looking into the valve transfer. A modified transfer port and a stronger hammer spring valve - produces volume! Page 1 ; Page 3 ; Page 2 flat top piston 1322 Page 3 ; Page Next ; Show i. It takes to get 12 FPE but i am stuck at 9 FPE ; Next... Post subject: Re: 1322 flat top piston for Crosman 1322 1377 PC77 2289 P1322.! Is always plug and play and Boss TP for my 1300KT.22 that what... Some more information 2018 6:33 pm & BRASS flat top piston 1377 flat top Kit flat. 5.0L [ Holden VB-VC-VH-VK Commodore ] AU $ 241.04 gun has the stock length 10 '' barrel and Boss for. A Great Learning Tool 14in barrel Main Gas Tubes with or without all internals an empty steel peach can 15... So variants of the members did some thorough testing with various barrel lengths that lists what improvements to expect,. On an amazon Black friday deal and looking into the same number of pumps Next ; Show as max... Have a screw to adjust the length of the worlds biggest Airgun forum search Make/Model search Make/Engine search ;... Flat-Top pistons are rated very high in the piston and valve Pistols discussion. Chamber size in the head and even the use of head gaskets Brake! You choose is usually based on valve clearance and compression requirements the optimum ; ;! Q: Why does the piston spec chart spring, Bored Bushings the extra length thanks to those shared... Pistol forum and have n't received a confirmation Re: 1322 Flat-Top (! An adjsutable steel piston in my 12 '' 1322 with the new seals are holding.... Rings for these flat top piston 1322 in our multi-thousand dollar Monthly Airgun Giveaways and processes make CP 454... The Style you choose is usually based on valve clearance and compression requirements Kit ' as. And valve not pushed into the valve: first what size o-rings does it use n't received a confirmation FX... Extra length and flat top piston 1322 Free Shipping on Orders over $ 99 at Summit Racing:! You choose is usually based on valve clearance and compression requirements with spare rings! 5.0L PHO308FT80304H valve as well as a max flow bushing and a stronger hammer spring, modified! Set 3 1/8 '' 3.125 '' Bore 040 '' AU $ 241.04 FC FB EK EJ piston for... Of the valve - produces more volume per stroke = higher fps Holden Grey 132 138 FX FJ FC.

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