Tapout Stage 2 Camshaft Package for LF4/LF3

Description

Tapout Stage 2 high lift/duration camshafts have been designed to work in conjunction with the factory timing chains and engine components, so you are only required to replace valve springs and retainers.  Please note that we do not currently stock valve springs and retainers compatible with these camshafts, so you will need to work with your local engine builder or installer to source these separately.

Tapout Stage 2 high lift/duration camshafts are manufactured in the U.S., machined to accommodate the LF4/LF3 vacuum pump and the fuel lobe has been ground to match our Tapout Fuel Cam (approximately 23% larger than OEM).

OEM LF4 camshaft specifications: .432/.435” lift with 213/225° duration @ .050” lift
Mace Stage 1 camshaft specifications: .423/.423” lift with 244/244° duration @ .050” lift
Tapout Stage 2 camshaft specifications: .475/.464” lift with 238/247° duration @ .050” lift

Tapout Stage 2 high lift/duration camshafts package includes four camshafts and eight Genuine GM camshaft seals.