AFR Exhaust Valve - 1.880 in Head - 11/32 in Valve Stem - 5.450 in Long - Stainless - Big Block Chevy Drag Parachute Launcher is constructed from high-quality linear

is constructed from high-quality linear low-density polyethylene (LLDPE) that is impact resistant

Proportioning Valve Bracket

Indexing positions the ground strap of the spark plug properly for best piston dome clearance and un-shrouds the electrode for a more even burn and possible gains of 5-15 horsepower

3/16 in Diameter

AFR Exhaust Valve - 1.880 in Head - 11/32 in Valve Stem - 5.450 in Long - Stainless - Big Block Chevy Drag Parachute Launcher is constructed from high-quality linearProduct Description: Exhaust Valve 1. 880 in Head 11 32 in Valve Stem 5. 450 in Long Stainless Big Block Chevy Sold Individually Advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers, electronic programmers, diesel fuel