Valve Springs: 4 Count - Fits GM & Pontiac 350/389/400/428/455 - Inner - ERV813

Valve Spring: Set of 4Fits GM & Pontiac 350/389/400/428/455OuterEnginetech Part Number: ERV814

Enginetech Camshaft | Part Number: ES641Camshaft SpecificationsValve Lift (Intake): .404in.Valve Lift (Exhaust): .408in.Stage: StockLift (Intake): .269in.Lift (Exhaust): .272inLash Type: HydDuration...

Enginetech Camshaft | Part Number: ES8208Camshaft SpecificationsValve Lift (Intake): .409in.Valve Lift (Exhaust): .408in.Stage: StockLift (Intake): .272in.Lift (Exhaust): .272inLash Type:...

Valve Spring: Set of 4Fits GM & Pontiac 350 & 400Outer W/Ram AirEnginetech Part Number: ERV923

Timing Chain SetFits GM & Pontiac 326/350/389/400/421/428/455Enginetech Part Number: TS350