What it is that really dictates the need for hardened pr's is .........
If you use guide plates
Non hardened pr's will not take the scraping against the gp's and you will
end up with a bunch of metal shavings getting in the motor
Grady
Never swapped heads before, aluminums need hardened pushrods, (I think I read tht somewhere)
Let me know, and thanks for any info
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