Valve Spring & Retainer Kit GM LS - Dual Spring 1985-pontiac-firebird-esi1337306 75 in Tube Mount Brackets

75 in Tube Mount Brackets Included - Aluminum - Black Anodized - Kit

Intake Manifold - LS3 Ultra Low-Ram - 105 mm Throttle Body Flange - Tunnel Ram - Front Entry - Dual Injector - Aluminum - Black Powder Coat - LS3 - GM LS-Series - Kit

Crankshaft Pulley - Performance Ratio - V-Belt - 1 Groove - 5

Residual Pressure Valve - Round - 2 lb - 1/8 in NPT Inlet - 1/8 in NPT Outlet - 3/8-24 in Inverted Flare Fittings Included - Aluminum - Blue Anodized - Disc Brakes - Each

Harmonic Balancer - PowerForce Plus - 7

Valve Spring & Retainer Kit GM LS - Dual Spring 1985-pontiac-firebird-esi1337306 75 in Tube Mount BracketsValve Spring Kit Dual Spring 400 lb in Spring Rate 1. 070 in Coil Bind 1. 320 in OD Chromoly Retainer Viton Seal Steel Valve Lock Steel Seat GM LS Series Kit