Fel-Pro Full Engine Gasket Set - Cadillac V8 HASZ21LT no modification needed and it

no modification needed and it is good for heavy duty use

6-Hole Forged Crank

1/8 in NPT Female Outlet

high-performance fuel systems

Switch holes measure 20mm wide and 36mm tall

Fel-Pro Full Engine Gasket Set - Cadillac V8 HASZ21LT no modification needed and itProduct Description: Engine Gasket Set Full Cadillac V8 Fel Pro is the leading brand of replacement and performance automotive gaskets and sealing products. Fel Pro is recognized as the industry leader for premium replacement gaskets and seals for cars, SUVs, and light and medium duty trucks. They manufacture high quality solutions for everything from specific system repairs to complete engine overhauls. Fel Pro also offers specialty sealing products