11 header designed for 302w engines using the ar svo aluminum heads 12 ... to be used with the original chevy ii v8 block bell housing and clutch linkage ... not fit 1973 cars equipped with the 440 engine 27 two tubes over frame on each side 28 ... by using the stock location side motor mounts this header requires · 1971-74 ... which consists of front and rear motor mounts · 1975-80 front motor mounts #12608 · ... 1958 and later blocks with side motor mounts and the use of hooker header ... which consists of front and rear frame mounts and a fiberglass replacement firewall ... on these models 43 fits integral head engine only i.e intake manifold is part of the ... hardware and instruction sheet 46 cat-back exhaust system does not fit ... 47 designed for use with danchuk style engine mount and rear transmission crossmember ...