05-25-2017, 08:55 AM
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CC Member
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Join Date: Feb 2012
Location: Keller,
TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
Posts: 549
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Quote:
Originally Posted by Three Peaks
Overly heavy springs for the purpose could also cause some of the rod problems you are having. Did you check if your springs are suitable for the purpose? Proper seat pressure, no spring bind when loaded, installed properly?
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This.
Most (a lot anyway) aftermarket heads seems to have springs for rollers, not tappets. Roller springs are generally too heavy for flat tappets. If you have two springs per valve (inner and outer), take the inner spring out for the break in procedure.
Even if you did everything right, you can wipe a cam lobe with ease. |
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