Which headgasket do i Need?
Which headgasket do i Need? I have an LT1 with a stock bottom end and edelbrock ported and polished heads. I want to go with the SCE Pro Copper gasket but I dont know which bore or thickness I need.
if you want to stay stock compression then go 0.039 thickness and 4.000 bore.i'm not sure if they carry that size but,it's a good start.you might be little higher than stock if your combustion chambers are
smaller than 58cc.
smaller than 58cc.
Originally Posted by SincalT/A
if you want to stay stock compression then go 0.039 thickness and 4.000 bore.i'm not sure if they carry that size but,it's a good start.you might be little higher than stock if your combustion chambers are
smaller than 58cc.
smaller than 58cc.
Edelbrock heads are 54cc so with a Fel-Pro .039 gasket, you'll bump the CR a little. Probably don't need the copper. It's a little overkill if you're not running big boost or a big shot.
Last edited by dhdenney; Jul 11, 2007 at 07:47 AM.
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From: Decatur, TN (N-W of Athens)
Silly question. Wouldn't using a thinner gasket increase the lift on the rockers due to moving the head closer to the engine, making the push-rod 'longer', essentially creating more lift? I mean obviously not a lot, but some yes?
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Originally Posted by Formula350
Silly question. Wouldn't using a thinner gasket increase the lift on the rockers due to moving the head closer to the engine, making the push-rod 'longer', essentially creating more lift? I mean obviously not a lot, but some yes?
No..never..here is why.
Think about the Geometry..you are not changing the Rocker Angle with the Valves, merely raising the pivot point a little bit, cause these Heads use Stud-mount Rockers.
On LSX Engines is where you want to change the Push Rod length, cause the Rockers are mounted in a fixed position on the Head, and they have to be on the money..
I love them things too..22ft/lbs torque and they are set..
Think about the Geometry..you are not changing the Rocker Angle with the Valves, merely raising the pivot point a little bit, cause these Heads use Stud-mount Rockers.
On LSX Engines is where you want to change the Push Rod length, cause the Rockers are mounted in a fixed position on the Head, and they have to be on the money..
I love them things too..22ft/lbs torque and they are set..
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From: Decatur, TN (N-W of Athens)
Originally Posted by the_merv
Think about the Geometry..
Unless you're talking about geometric location, which then I don't quite follow. Either way, a "no" is a "no" and that's all I needed 
Originally Posted by speed_demon24
You have 2500 posts and you posted this???
I'll refrain from thinking outside the box from now on.
