L92 heads, forged pistons
L92 heads, forged pistons ok i spent 30 minutes searching all over and i never found information.
since the L92 heads are a diffrent angle, what kind of forged pistons do you need to run on a 4.00 inch bore motor.. and where can i find these expensive parts?
since the L92 heads are a diffrent angle, what kind of forged pistons do you need to run on a 4.00 inch bore motor.. and where can i find these expensive parts?
Someone correct me if I am wrong, but th L-92's are the same 15 deg as the LS1's. The LS7s are on a 12 deg though. The difference is the 2.16 intake valve. At this time it looks like a custom piston. I am sure Dieamond could make you a set. Maybe you could talk to TSP and find out where they get them from.
Originally Posted by Stang's Bane
Someone correct me if I am wrong, but th L-92's are the same 15 deg as the LS1's. The LS7s are on a 12 deg though. The difference is the 2.16 intake valve. At this time it looks like a custom piston. I am sure Dieamond could make you a set. Maybe you could talk to TSP and find out where they get them from.
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FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Th L92 reliefs are different with a much larger intake valve and wider valve spacing. I have recut several and with no cylinder head milling and certain cams you still might get away with a regular piston anyway but they definitely will hit earlier and on the outer edges of the OEM reliefs when they do.
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FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Originally Posted by TWINK
My set up is 4.000 with JE Flat top pistons w -2cc valve reliefs. will this be ok with the l92 head's with stock valves.
my cam specs is 248/258 .647/.647 112
Let me know what you think.
my cam specs is 248/258 .647/.647 112
Let me know what you think.
Hopefully it will work for you but I would check first with the fairly big cam..
What stroke are you building? I have 4.010" pistons with l92 valve reliefs in stock. 
We ship all our strokers with l92 friendly pistons now
We ship all our strokers with l92 friendly pistons now
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
i just picked up my 6.0, and id like to just use the stock bore/stroke. stock crank, forged pistons and rods. id love to do some L92 heads but i already have a set of 243s right now, and id like to build my bottom end once.
Originally Posted by Jason 98 TA
What stroke are you building? I have 4.010" pistons with l92 valve reliefs in stock. We ship all our strokers with l92 friendly pistons now
We ship all our strokers with l92 friendly pistons now 4.030 post up or pm me a price on a set of pistons.
Thank's
Originally Posted by Jason 98 TA
What stroke are you building? I have 4.010" pistons with l92 valve reliefs in stock. We ship all our strokers with l92 friendly pistons now
We ship all our strokers with l92 friendly pistons now 
Originally Posted by racer7088
I am doing some batches of L92 flat tops for the 4.100 and the 4.00 strokes and with some semi fancy ring packages to make it all even better.
I hope to be on the road in February!
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Well I am doing two but they are much more radical.
My L92 pistons are in 4.070 or 4.075 bore and have 1.2, 1.5, 3.0mm rings and will be a normal price but the rings are much better than what other people have.
My L92 pistons are in 4.070 or 4.075 bore and have 1.2, 1.5, 3.0mm rings and will be a normal price but the rings are much better than what other people have.
Erik, why the .070" bore? is that as "small" as you feel comfortable with running these big intake valves? might have to get a set of those off you soon when i come get that block. for stock stroke ofcourse (strokers are for pussies!!!!!)