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Gavin · 10-17-2018, 01:11 AM

Thanks for your research Bob. In a current thread titled "High Compression heads" two people have mentioned planing a 5.5 head, one by 50 thou and another by 100 thou. It would seem to me the amount one can plane will be dependant on whether or not the Pistons protrude above the block. I have a friend with a 5.5 head that needs 30 thou removed to straighten it and his piston protrude so Given your info I will proceed with caution.
Cheers,
Gavin

10-17-2018, 01:11 AM	#34
Gavin Member Join Date: Oct 2010 Location: Red Beach New Zealand Posts: 31	Re: Head questions Thanks for your research Bob. In a current thread titled "High Compression heads" two people have mentioned planing a 5.5 head, one by 50 thou and another by 100 thou. It would seem to me the amount one can plane will be dependant on whether or not the Pistons protrude above the block. I have a friend with a 5.5 head that needs 30 thou removed to straighten it and his piston protrude so Given your info I will proceed with caution. Cheers, Gavin