dartjack
Well-Known Member
Been following the posts for quite a while. I haven't (or don't remember) seeing anyone having discussed/tried magnum valves in an LA head. If the guides have to be replaced anyway why not go for lighter parts? Would the length be the same? The valve springs might present a problem. If the spring seats have to be machined it could be done whem the guides are installed. Also would the rocker arm geometry be the same?