buildin a 4.6
 

I AM BUILDING A 4.6 UP AND I WAS WONDERING WHAT WOULD THE BEST WAY OF DOING IT? WHAT KIND OF KIT SHOULD I USE TO BUILD THE BOTTOM END UP? ARE THE CRANK SHAFTS IN THE F SERIES BIGGER THEN THE GT MUSTANG?

Contact sean hyland motorsports or mod max for parts shm makes complete built short blocks or rotating assemblys

Concentrate mostly on the rods and pistons as those are the weak links in the modular engines. Some good forged pistons and some Manley H-Beam rods will make it very tough. For the bottom end just use a stud girdle. Crankwise, most people go with the Cobra crank but I think the 2V crank should do unless your going for real big power. Also, with the Cobra crank, you will need to swap flywheels because it uses an 8 bolt pattern as opposed to 6. As far as I know, the truck crank is the same as the Mustang spec crank.

Crank
 

The 4.6 engines have a 3.552 inch stroke and the 5.4s have a 4.16 inch stroke. The 5.4 and 4.6 are the same bore size the only difference in displacement is the stroke.

IT TURNS OUT THAT IM GOING TO BE HAVE A RACE SHOP IN PALM DESERT,CA DO MY MOTOR WHEN ITS DONE IT SHOULD BE MAKING 450 TO 500HP AND BE ABLE TO ACCEPT A 200 SHOT OF NOZ THAT IM GOING TO PUT ON IT ASWELL, IM NOT SURE ON THE DETAILS OF THE PROJECT YET BUT I WILL KNOW THIS WEEK AFTER THEY TAKE IT APART, I DO HAVE ANOTHER ? THOUGH, I HAVE A V6 IN THERE RIGHT NOW FOR THE TRANNY SHOULD I KEEP THE V6 TRANNY AND BEEF IT UP OR SHOULD I PUT A V8 IN THERE? ALSO HOW HARD WOULD IT BE TO PUT SWAP A AUTO TO A 5 SPEED?