yippee I just found the 81 vette forum does 81 use exh manifold gaskets
Hi all..just got an 81 last spring..so just over a year into it. build number 425802-St Louis, 4 spd, dark blue metallic, orig paint , orig dark blue leather interior, clean in and out..lots redone, all headlight vac lines, new alum radiator, water pump, main thing is Edelbrock Performer intake, carb and cam, all the smog stuff gone, computer disconn, running a Performance Distributors DUI HEIadvance tuned 24 deg mech, set for 36 deg mech all in at 3100 rpm, (12 deg static), vac can is 8-10 deg to manifold vac ( not ported). Plugs are Autolite 25, set at .053 (per Performer Distributors recommendation), true dual exhaust with Flowmaster mufflers. Current task is to replace both exhaust manifolds that have small cracks/leaks. So far plan is to use stock manifolds (used ebay) check em out, mill flat and install with a new heat riser. Does the 81 use exhaust manifold gaskets? if so..which?
Thanks
Nick
(near Spokane WA)