Exhaust gasket size
I have a GM PP HO454. Gen 6 engine. I have headers and am buying a copper gasket. Anybody know what size and shape the exhaust ports are on the standard cast heads for this engine?
69 Camaro, Air Ride Suspension,
Procharged HO 454, 700R4, 12 bolt with Yukon axles, 3:73 gears posi, Pypes 2.5" X pipe with Borla XS mufflers. Retrotek Speed EFI, Ridetech suspension.
Rushforth rated X with Toyo tires. MSD 6 ignition.
Wilwood 6 piston Dynalite disc brakes with Hydratech booster.