I will be having 55mm roller cams made for the new block.If you want the ultimate in valve train stability this is for you.I will have firing order swaps available either the 4-7 and the 4-7-2-3 or stock. I am also looking into have stock bearing size roller cams with the firing order swap.These will both be true custom cams the only limitations will be the core size it self. The cores will be 500.00 plus 200.00 for the grind.I wish I could go cheaper but this is a small run so my hands are tied.If the demand is there prices may go down.If you are interested email me at 10inchbuick@sbcglobal.net or pm me
