Fel-Pro Head Gasket - SB Chevy - OEM 700102 steel tube has a 1"

steel tube has a 1" O

Aluminum Drive Flange (two piece crank shaft seal) - 1

Grommets are also available in size specific 10-packs

please use the Manifold Reference Dimensions guide

Fel-Pro Head Gasket - SB Chevy - OEM 700102 steel tube has a 1"Fel Pro provide a durable, leak resistant seal on racing and special performance engines and are intended for use by the professional race engine builder or the serious amateur enthusiast who will settle for nothing less than the best. NASCAR, ALL PRO, ACT, WOO and ASA champions rely on FEL PRO engineering for flawless performance under extreme conditions. PERFORMANCE GASKET Features: Perma Torque Blue Stripe and Printoseal Wire Ring Head Gaskets