Quote:
Originally Posted by Ccmano
With that mileage and the higher hp your planning, if that’s the original radiator, do yourself a favor and replace it. Two factors are at work here. The original radiators have such fine closely spaced fins that you can never get all the fine sand out of it. It will never again cool as new. Secondly with higher hp comes more heat. These OEM radiators were marginal at best when new with stock hp. If your up grading the hp it’s best to upgrade the cooling system with a higher capacity radiator too.
Have fun with your project.
H
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the secondary ports can go from 34 to beyond 36 and there is some evening up and port matching
staying with the same cams and bottom end. the Haibeck MLS gaskets will raise compression a bit.
Doc, you asked if they are thinner? I'm not so sure, I think compressed they are, but the CR increase is likely more from surfacing the head
the MLS is more forgiving and should durn sure seal better than the blown hg on there now.