INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

Rocker Questions - Who has busted them?

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Old 05-29-2008, 04:05 PM
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I think you got your pushrod geometry all fucked up. You had the heads off, and got them milled. You need to find out if whoever put them back on compensated for that with the gaskets, then get ahold of a pushrod length checking tool, and determine what length pushrods you need. The stock length is 7.400.
Old 05-30-2008, 08:50 PM
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I agree with everything.Definitely have no idea how to check geometry or set preload right

Last edited by BlownChevy; 05-30-2008 at 10:54 PM.
Old 05-31-2008, 09:08 PM
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Originally Posted by Slowhawk
I agree with everything.Definitely have no idea how to check geometry or set preload right
You dont? Oh man I could be in some trouble I knew I should have brought it to the guy that builds Hyundai's
Old 06-02-2008, 06:39 AM
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Originally Posted by JJsnowking
You dont? Oh man I could be in some trouble I knew I should have brought it to the guy that builds Hyundai's
FYI...Was reading ur sig: I was originally gonna go to TRannyman for my 4L80...prob wuda saved me the second rebuild!
Old 06-13-2008, 03:51 PM
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Preloads are .020 to .060 on stock setups and previous post about no lash adjustment is correct. Just torque to 22 ft lbs. FWIW, my 1.85:1 rockers use a Crane Cam 7.250" pushrod due to the geometry change...

Crane Cam 7.250

Good Luck
Old 06-13-2008, 05:26 PM
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Originally Posted by FlaBouy
Preloads are .020 to .060 on stock setups and previous post about no lash adjustment is correct. Just torque to 22 ft lbs. FWIW, my 1.85:1 rockers use a Crane Cam 7.250" pushrod due to the geometry change...

Crane Cam 7.250

Good Luck
.020-.060 You must be running Comp R's or Morels. Stock lifters like .080 to .120.
Old 06-13-2008, 05:31 PM
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Originally Posted by Slowhawk
....Stock lifters like .080 to .120.

That's correct.. my bad.. I just put in the Comp 875-16's.... that was the pre-loads I quoted...

Last edited by FlaBouy; 06-13-2008 at 07:20 PM.
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