Will a 351 windsor fit into a 66 mustang?

Answer 1

It will work with no modification to the shock towers if done correctly. First you have to have the correct headers! Hooker and Headman both make headers for this conversion. If you have power steering you will need to put a shelby Power Steering bracket on available through many suppliers I.E. cj pony parts, California mustang etc. If you run a high rise manifold like a air gap you can run into hood clearance problems. Put the 65 motor mounts with torque straps from the heads to the frame combined with a drop base air filter you wont have any problems. I am running a 9.5 deck height {351w} in my 66 with this system and it all fits just right. If you run serious power levels ,getting the 2 in primary tube size is a problem though. You will have to have them built unless J Bittle American is going to make more. the 351w does weigh more so be prepare for a alignment. The 64 to 66 mustang can also have front tower sag problems make sure it measures 40in across. If it doesn't then spread them apart with a porta power and install a shelby brace. My combination is a 460ci aluminum man o war block and crank with Jon Kasse heads with a modified victor manifold and custom solid roller. 752 hp @ 5900rpm with a flat torque curve. Fiberglass SEPARATE piece front end including bumper It make this little car move!!! 9 inch rear with 4spd and limited slip 3.00 gears. even with the gears it will blow the tires off in 3rd gear. To much torque for the suspension, if there is such a thing!!! Good luck!!!