force headers competition headers truck force headers footnotes 1 this system ... 11 header designed for 302w engines using the ar svo aluminum heads 12 ... not fit 1973 cars equipped with the 440 engine 27 two tubes over frame on each side 28 ... tube over frame right side 31 without oilcooler 32 will not fit 71-72 comet ... on these models 43 fits integral head engine only i.e intake manifold is part of the ... 47 designed for use with danchuk style engine mount and rear transmission crossmember ... fits 1971-87 only 56 will not fit efi engines 57 this is a replacement shorty style ... this header requires the use of hooker engine swap front frame mount kit part #12678 ... this header requires the use of hooker engine mount kit part #12679 stock ... headpipes 67 header designed for engines equipped with tfs aluminum heads 68 ...