LT1-LT4 Modifications 1993-97 Gen II Small Block V8

found problem with engine shake and miss

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Old Jan 17, 2009 | 10:58 AM
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Default found problem with engine shake and miss

the cause of the low rpm miss was a broken exhaust valve spring,car runs like a charm once again
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Old Jan 17, 2009 | 11:16 AM
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Now you need to figure out the cause of the broken spring, if you don't the next one could take out the whole engine.

It is possible for a broken spring to leave you with little left but one head(the other side) and the intake for good parts.


Possible it was just a freak failure but you still need to investigate further. Are the springs really appropriate for the cam? How old are they? Are they setup right?
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Old Jan 17, 2009 | 12:00 PM
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That will throw some things off..
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Old Jan 17, 2009 | 12:10 PM
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Default found problem

the engine was complety redone with forged internals,but the comp cam and hi-crane roller rocker lifters was installed,we did change the cam bearings,but the springs,i dont know if they are the original stock which would have 128,00 miles on them.or what.
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