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porting question h72/77 | Subject: porting question h72/77 by LoserMachine on 2016/12/5 0:57:43
so i won a bid on eBay for a h95(swirl port) but its eBay so i received a different part then pictured and listed a h72 head came in the mail.
upon removing the valves for a port and polish there is a huge hole/dip in each exhaust port making me believe its h77?
How can i effectively port this to be efficient as possible? do i try and tig weld it shut or do i just normaly polish it. can any explain why they would do this?
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