vintageford1940

Will a C4 from a 70's 302 fit on a 1990 302 out of a mustang?

FLcracker9

Yes it will bolt up to the block. The only issue would be in the flexplate/bellhousing. Early 302s used a 28oz imbalance flexplate, your 90 302 uses a 50oz imbalance flexplate. There are also different bellhousings that came on the 302s (small and large). If your C4 has a large bellhousing, you can use the converter and flexplate from your 90 302. If your C4 has the small bellhousing, you can buy a large bellhousing and replace it, or buy a 157 tooth 50oz flexplate, and buy a new converter to match the smaller flexplate. You have several options.

mjr46

what is your goal with this??? race or street??

vintageford1940

Yes it has the larger bellhousing. Appreciate the help!

vintageford1940

My goal is street. Im building a 1940 ford truck. Its gonna have ***** but it will be a daily driver, im not gonna build it to let it sit in the garage either.

mjr46

if it has the larger bellhousing, you most likely will need the 164 tooth flexplate for a c-4 that contains a weight for a 50 oz balance 302