Square port or D-port?
02-16-2004, 11:04 PM
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Car: 1992 z28
Engine: Vortec 350 TPI
Transmission: 700r4
Square port or D-port?
I've got a set of Vortec heads and a set of Hedman 68460 coated longtubes. I'm trying to figure out what header gasket to use with the two. The Hedman's have a round port and the Vortec's have a port that is somewhat square with the corners rounded. I'm sorta confused as to what the gasket manufactures are calling a D-port and a square port. Can someone explain the difference in the two and tell me what gasket I need?
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