[Maxum96]

I would begin my research for a 1970 351c optioned car. The 1969’s are generally 351w cars with only a few 351C coming in the early cars. Or the 351C could have been installed in the last 54 years. In my eyes the 1970 351C cars would be easier to match replacement engine parts. Radiator, fan and clutch fan should or just a mechanical fan should fit perfect for a 1970 351C.

I'm sure you just typo'd your response, but for the OP's sake let me set the record straight. In 1969 the 351C engine was not available. The only 351 engine was the Windsor. In the early part of the 1970 model year, 2v (2 barrel carburetor) 351 engines could be either a 351w or a 351C. A 4v 351 in 1970 was only a Cleveland. My early model year 1970 Mustang came with a 2v 351W when new. Many people over the years tossed their 302/289/351W engines out of their Mustangs in favor of 351C engines due to Cleveland being designed as a performance engine and the lack of performance cylinder heads for 289/302/351w engines. With 1967-1970 Mustang engine compartments being dimensionally the same as a 1970 Mustang, this was a bolt in no brainer back in the day. In fact, this is exactly why I replaced the factory 302 with a 351C in a Mustang I had back in the 1980's. As Ironstang pointed out, just look for parts for your engine that fit a 1970 Mustang as it's the same car under the skin as a 1969 Mustang.

Welcome to the forum. We always like to see pictures of members cars. You'll find this the best resource for vintage Mustang information. 69stang.com is a good resource too for 69 and 70 Mustangs, although they have less traffic over there.