Manley Valve - Exhaust, Valve-BBC E/D 1.880, +.100 1987-pontiac-firebird-esi3246161 The durable construction features a

The durable construction features a reinforced lace

The Edelbrock #9602 Valve Spring Retainers are for #5745 & #5823 Valve Springs

High Energy/Marine 218/218 Hydraulic Flat Cam for Ford 429

and lending for ride-alongs

minimizing the potential for oil seal damage

Manley Valve - Exhaust, Valve-BBC E/D 1.880, +.100 1987-pontiac-firebird-esi3246161 The durable construction features aDiscover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance.