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Re: 340 Engine... How to determine pushrod length??
[Re: cuda_tim]
#458146
09/03/09 10:30 AM
09/03/09 10:30 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Did you have machine work done to the block? If not and everything is stock I personally would not bother but that`s me.
Yes, heads were shaved significantly. In fact, I need to use a shim...
But more importantly, I think I'd like to know the best way to do this...
Tim...
what do you mean ... I NEED TO USE A SHIM ????
Ok, my machine shop performed a valve to piston clearance check for me and they advised using a 0.020 shim, in addition to the normal Fel-Pro head gasket.
I don't remember the numbers exactly (I'm at work), but I think that the numbers fell out like this:
Using the Clay method, the clearance between the intake valve and the piston valve relief was 0.036. They recommended 0.100 on the exhaust side.
If you figure that the Fel-Pro head gasket compresses to 0.039 and the shim is 0.020, this should get me to 0.095.
0.036 + 0.020 + 0.039 = 0.095.
Anybody?
Tim...
Never heard of a head gasket shim?
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