l92 on ls2 mill to 11 comp question
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Milling .035" puts you into an area between commonly available pushrod lengths. The amount you mill has a direct effect on lifter preload. There are other variables such as valve tip length, cam base circle diameter, head gasket thickness and lifter length. Different manufactureres making different parts can have tolerance changes that can add up to an amount that can make a difference in lifter preload. In short, there's no real hard answer. Without knowing any of the varibles, if it were my engine I would first check lifter preload with a .050" short pushrod.
Richard
Richard
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If you mean the L92 or the L76, they are two different bore engines. The l92 has a 4.065" bore and the L76 has a 4.00" (the same as LS2). The swept volume is slightly different and therefore the compression ratio will differ slightly.
Richard
Richard
Originally Posted by Richard@WCCH
If you mean the L92 or the L76, they are two different bore engines. The l92 has a 4.065" bore and the L76 has a 4.00" (the same as LS2). The swept volume is slightly different and therefore the compression ratio will differ slightly.
Richard
Richard
Still loving your Stage 2 L92 heads on my build. The car uses absolutel no oil and runs like a raped ape.
11 Second Club
Joined: May 2007
Posts: 226
Likes: 1
From: Sydney
Originally Posted by Richard@WCCH
Milling .035" puts you into an area between commonly available pushrod lengths. The amount you mill has a direct effect on lifter preload. There are other variables such as valve tip length, cam base circle diameter, head gasket thickness and lifter length. Different manufactureres making different parts can have tolerance changes that can add up to an amount that can make a difference in lifter preload. In short, there's no real hard answer. Without knowing any of the varibles, if it were my engine I would first check lifter preload with a .050" short pushrod.
Richard
Richard
Also Phoenix_Master did mean L98 thats what they call the L76 motor with the DoD stuff removed here in OZ .... I kid you not . Rather confusing for you guys as it can get mixed up with the vette motor.
cheers
Richard ,
will there be any piston the valve clearance problem when i mill the heads .035 and use this cam 215/230 .629/.592 117 LSA ?i have the stock bottom end right now.
will there be any piston the valve clearance problem when i mill the heads .035 and use this cam 215/230 .629/.592 117 LSA ?i have the stock bottom end right now.
Last edited by Houston999; Jun 26, 2007 at 03:49 PM.
Originally Posted by SS Enforcer
This is with stock gaskets is it please Richard on the L76 block.
Also Phoenix_Master did mean L98 thats what they call the L76 motor with the DoD stuff removed here in OZ .... I kid you not . Rather confusing for you guys as it can get mixed up with the vette motor.
cheers
Also Phoenix_Master did mean L98 thats what they call the L76 motor with the DoD stuff removed here in OZ .... I kid you not . Rather confusing for you guys as it can get mixed up with the vette motor.
cheers
Originally Posted by Houston999
Richard,
will there be any piston the valve clearance problem when i mill the heads .035 and use this cam 215/230 .629/.592 117 LSA ?i have the stock bottom end right now.
will there be any piston the valve clearance problem when i mill the heads .035 and use this cam 215/230 .629/.592 117 LSA ?i have the stock bottom end right now.
Good luck,
Richard
11 Second Club
Joined: May 2007
Posts: 226
Likes: 1
From: Sydney
Originally Posted by Richard@WCCH
Gottcha! I was indeed thinking of the old Vette engine. Are the Vvt units available there too?
Richard
Richard
Cheers