or replacement element intake manifold header primary tube diameter18 exhaust system ... 1-5/8 1-5/8 1-3/4 2-1/4 2-1/2 2-1/2 ford 289-302 v-8 early model 5.0l v-8 efi ... 1986-93 mustang 351w v-8 351m-400 v-8 352-360- ... 4 2-1/4 2-1/4 2-1/4 2-1/2 2-1/2 1 up to 1986 1987-later w/aluminum heads 2 1987- ... later w/cast-iron heads 72-degree straight center intake ... if using p/n 300-552-1 cylinder heads 5 use p/n 300-49 manifold if using p/n ... 300-552-1 cylinder heads 6 hydraulic roller camshaft kit does ... 18 see hooker or flowtech catalog for header and exhaust system applications 20 ...
exhaust intake manifold system and header muffler primary tube diameter18 ... 1-5/8 1-3/4 1-7/8 2-1/2 2-1/2 2-1/2 ford 289-302 v-8 early model 5.0l v-8 efi ... 1986-93 mustang 351w v-8 351m-400 v-8 352-360- ... 2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 1 up to 1986 1987-later w/aluminum heads 2 1987- ... later w/cast-iron heads 72-degree straight center intake ... if using p/n 300-552-1 cylinder heads 6 hydraulic roller camshaft kit does ... 18see hooker or flowtech catalog for header and exhaust system applications 19 ... if using p/n 300-552-1 cylinder heads 27 for applications over 500 horsepower ...