GM/Mercury Marine Gen-IV/V/VI Cylinder Head Gasket 1988-pontiac-firebird-esi5674963 Combining an efficient 4 &

Combining an efficient 4 & 4 Pass copper/aluminum Made in the USA cooler core with a powerful 10" Tornado electric fan

Low carbon residue dramatically reduces plug fouling and smoke

BORLA(r) Cat-Back(tm) & Axle-Back multi-core technology is designed to unleash hidden horsepower

6 aluminum fan blades and is rated up to 8

(2) -8AN x 3/8" and (2) -8AN x 1/2" brass hose barb fittings to adapt to a wide variety of heat removal requirements

GM/Mercury Marine Gen-IV/V/VI Cylinder Head Gasket 1988-pontiac-firebird-esi5674963 Combining an efficient 4 &GM Mercury Marine Big Block V8 Gen IV V VI . 051" MLS Cylinder Head Gasket, W 4 Bolts in Lifter Valley, 4. 580" Bore