Chev 283 327 350 383 400 Fel-Pro Exhaust Header Gasket Set #1456 Cylinder Head 3) The GM Alternators have

3) The GM Alternators have a 5/16" mounting point on the bottom of the alternator while the Ford alternators have a 3/8" mounting hole

2 Push button O rings

000 V # MSD8200

Power Valve

Chev 283 327 350 383 400 Fel-Pro Exhaust Header Gasket Set #1456 Cylinder Head 3) The GM Alternators haveHeader Gaskets, Steel Core Laminate, 1. 92 in. Round Port, Chevy, 265 400,# 1456 Port Style Round large port Gasket Material Steel core laminate Port Height (in) 1. 920 in. Port Width (in) 1. 920 in. Quantity Sold as a set. Fel Pro Performance exhaust header gaskets are made from high temperature, high density fiber material around a perforated steel core, for durability and heat resistance. They're pre coated for easy removal.