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LGAFF · 06-02-2010

Port matching the head is ok, if you go 35-36 on the intake, port match the heads so that the transition is good, but then only go into the head with a taper about an 1" or 2" into the head, also, the port match will not be a circle pattern, it will be a cresent....if you have questions, more than happy to talk, or reach out to the pros.....Pete, Ryan, etc.

No need to port the 2ndry in the head on a port match.

06-02-2010	#9
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Porting a stock LT5 Port matching the head is ok, if you go 35-36 on the intake, port match the heads so that the transition is good, but then only go into the head with a taper about an 1" or 2" into the head, also, the port match will not be a circle pattern, it will be a cresent....if you have questions, more than happy to talk, or reach out to the pros.....Pete, Ryan, etc. No need to port the 2ndry in the head on a port match. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359