hi mate, its an uprated cam, VERY racey, my headgasket went so instead of machining my old head etc it was cheaper to bolt this one on and give some more horses. The old head had hydraulic lifters but the new head came with solid lifters so that what in it just now. You answered my last post about the adjusting bolt which broke into 3 bits? I sourced these solid lifters but they are a different locking system to lifters in the head just now so was going to change them all over, just wanted to see if this is possible, as of cam wear etc but it only done 2000 miles so thought it would be ok? Reason I want to swap is these lifters look alot better and have a different lock and adjust compared to the shim ones in it just now hope this makes some sense lol