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chevy 292 LPG pistons .040 or .060 over. #68650 02/18/12 11:16 AM
Joined: May 2000 Posts: 9 Moca,Puerto Rico B Bob s Performance OP Active BB Member
OP Bob s Performance Active BB Member B Joined: May 2000 Posts: 9 Moca,Puerto Rico	Looking for new LPG pistons for a 292 6cyl.Could be .040 or .060 over.

Re: chevy 292 LPG pistons .040 or .060 over. Bob s Performance #68651 02/18/12 11:19 AM
Joined: Apr 2004 Posts: 3,556 Likes: 35 Dysart, Iowa tlowe #1716 1000 Post Club
tlowe #1716 1000 Post Club Joined: Apr 2004 Posts: 3,556 Likes: 35 Dysart, Iowa	Not exactly LP pistons , but they will raise the compression, weigh less, be stronger and have lighter rings. http://12bolt.com/250292_products/pistons Tom Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com

Re: chevy 292 LPG pistons .040 or .060 over. tlowe #1716 #68662 02/19/12 04:21 AM
Joined: Oct 2007 Posts: 411 kingsport, tn. B bcowanwheels Contributor
bcowanwheels Contributor B Joined: Oct 2007 Posts: 411 kingsport, tn.	292 LP Pistons hhave been out of production now for quite a while and not made anymore except the forged design. also you dont want the 1/16 thick rings for a street engine unless your just building a toy. they wont last long on a dauily driver from my sperience. i was lucky to get 20 k on a set before they started getting alot of blow by and oil comsumption. you could however go with just 3 rings and 1/8 thick. I BELIEVE IN " JOHN 3:16 "

Re: chevy 292 LPG pistons .040 or .060 over. bcowanwheels #68666 02/19/12 01:14 PM
Joined: Oct 2002 Posts: 787 Oakdale, CA USA L LGriffin_#4385 Major Contributor
LGriffin_#4385 Major Contributor L Joined: Oct 2002 Posts: 787 Oakdale, CA USA	I was able to order the LPG pistons about 3 years ago. You do need to have the part number Federal Mogul Seal Power 980P-xx (xx=oversize) for success in ordering. Summit still list them though not available at this time. http://www.summitracing.com/parts/FEM-980P30/ Larry Last edited by LGriffin_#4385; 02/19/12 01:16 PM. Ignorance can be fixed Stupidity is forever

Re: chevy 292 LPG pistons .040 or .060 over. bcowanwheels #68671 02/19/12 03:22 PM
Joined: Apr 2000 Posts: 540 Western New Yak state T Tony P Major Contributor
Tony P Major Contributor T Joined: Apr 2000 Posts: 540 Western New Yak state	Originally Posted By: bcowanwheels 292 LP Pistons hhave been out of production now for quite a while and not made anymore except the forged design. also you dont want the 1/16 thick rings for a street engine unless your just building a toy. they wont last long on a dauily driver from my sperience. i was lucky to get 20 k on a set before they started getting alot of blow by and oil comsumption. you could however go with just 3 rings and 1/8 thick. 1/16 compression rings are pretty much the norm on performance street engines and newer production engines.1/8 inch rings haven't been seen for 50 years except on heavy duty truck engines.1/16 rings on Venolia pistons in 302 GMC I built 6 years ago.A friend in Florida owns the truck now and the engine is still fine at 50,000 miles. 70 Triumph 650 cc ECTA current record holder

Re: chevy 292 LPG pistons .040 or .060 over. Tony P #68688 02/20/12 03:25 AM
Joined: Oct 2007 Posts: 411 kingsport, tn. B bcowanwheels Contributor
bcowanwheels Contributor B Joined: Oct 2007 Posts: 411 kingsport, tn.	run em if you like em for me i dont have any luck with 1/16" rings and they also cost twice as much as 1/8" rings. 1/8" rings is stndard of the industry unless your building a hot rod engine. all sbc and bbc engines use 1/8 x 1/8 x 3/32" rings same with ford and mopar. I BELIEVE IN " JOHN 3:16 "

Re: chevy 292 LPG pistons .040 or .060 over. bcowanwheels #68689 02/20/12 03:54 AM
Joined: Sep 2008 Posts: 3,669 Likes: 42 N. Georgia CNC-Dude #5585 1000 Post Club
CNC-Dude #5585 1000 Post Club Joined: Sep 2008 Posts: 3,669 Likes: 42 N. Georgia	Actually, 3/32" is the more common top and second ring thickness size used by most OEM manufacturers for stock replacement cast and forged pistons, just as shown for the LP pistons in the Summit link above, until some of them changed over to metric sizes in the late 1980's. Class III CNC Machinist/Programmer

Re: chevy 292 LPG pistons .040 or .060 over. CNC-Dude #5585 #68690 02/20/12 09:59 AM
Joined: Apr 2000 Posts: 540 Western New Yak state T Tony P Major Contributor
Tony P Major Contributor T Joined: Apr 2000 Posts: 540 Western New Yak state	The very long life and common Jeep 4.0 uses 5/64 compression rings,I think the 230-250 Chevy also does on stock replacement pistons. I'm thinking 1/8 thick rings on GM car engines was last seen on the 216 ? And Diesel engines. 70 Triumph 650 cc ECTA current record holder

Re: chevy 292 LPG pistons .040 or .060 over. Tony P #68768 02/27/12 03:53 PM
Joined: May 2000 Posts: 269 Canadian, Texas--USA J Joe Dial I.I.#1679 Contributor
Joe Dial I.I.#1679 Contributor J Joined: May 2000 Posts: 269 Canadian, Texas--USA	I don't think they are out of production because you can still get them from Sealed power. At least my parts house people got me a set 8 or 9 months ago with no trouble.

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