[ZZcamaro]

Originally Posted by camaro1

here is what you need to do to eliminate the afm/vvt and turn your l99 into a ls3 with your choice of camshaft

-choose a cam(any LSx 3 bolt)
-Get the correct length pushrods for your cam(LSx engines have non adjustable rocker arms and the lifter pre-load is set by using longer or shorter pushrods)
-get valve springs to match your cam(pac1218 or pac1518 are great beehive springs and are a direct swap)
-swap the cam sprocket(LS2 with 4x)
-swap the front cover(LS2/LS3 will work)
-swap the lifters(LS2/3/7)
-swap the lifter retainers(LS2/3/7)
-swap the valley cover (LS2/3 will work as long as it has the o-ring's to block off the afm towers in the valley)


buy hp tuners or efi live or have someone dyno tune and remove the afm/vvt from the ecm

Or buy an LS3 car!