Rocker arms for 408 build

You can raise the rockers or move them with shims. But you still have to set the preload or lash.

Rockers are what usually come apart and then the pieces fall down into the motor. I have seen many of rocker pieces ruin good motors. Spend the money now or spend it later.

I bought T&D rockers and then HTA used Crane Pushrods . When we tore the motor down the pushrods were gulled from the rockers hitting the sides of the pushrods. We now have Smith Brothers pushrods. My point is factory may be just fine if you know they are in good condition and sufficient for your build. You only get what you pay for.

Example.. Round a bolt off with a cheap wrench. Then they go and buy a good wrench . To late the bolt is already rounded. Tinkabotit forabit. LOL