SB Chevy 283 305 327 350 400 HP Cam Lifter Spring Kit .480"/.480" Lift 232°/232°
Melling Performance Cam and lifters for Small Block Chevy hydraulic flat tappet (non-roller) engines. Includes Performance Valve Springs. Street Performance cam. Strong Mid Range, rough idle. Includes Bottle of Hi-Zinc Engine Protector and Assembly Grease. Cam Specs: Valve Lift (INT/EXH): .480"/.480" ADV Duration (INT/EXH): 288°/288° Duration @ .050" (INT/EXH): 232°/232° Centerline: 106°/110° Spring Specs OD 1.230" ID .876" Closed Ht 1.700" Closed Load 91# Open Height 1.250" Open Load 233# Max Lift .525" Cam kits with Flat Tappets include a packet of Driven Assembly Grease for lubricating the cam lobe surfaces during assembly and a bottle of Engine Pro Hi-Zinc Engine Protector to add to the engine oil during break in. It is critical to use High ZDDP/Zinc oil in every oil change on flat tappet engines.