To allow for different cam belt tensioner (see “Camshafts belt tensioner”) the Blacktop cam belt is one tooth shorter at one hundred ten as compared to the 111 on the Silvertop.Block: The 4AG block can be a cost-free revving and robust bottom close. A stock block will survive in extra of 350 HP if air-billed inside the 8000 RPM selection, or 25