Dirconmach1
Well-known member
- Joined
- Nov 14, 2019
- Messages
- 80
- Reaction score
- 8
- Location
- Fort Valley,Virginia
- My Car
- 1971 Mach 1 351 Cleveland, 4 barrel, ram air, 4 speed, factory a/c, 77 k original miles in bright red with black.
Drive it like you stole it!
There seems to be a lot of info out there going back and forth as to the type of motor in my Mach1. Vin is 1F05M224463. The door tag is dated 7/71. From what I read, in may of 71 they changed the 351 Cleveland to open chambered heads and called it the 351 cj motor. The guy I got this from swears it’s a high compression engine. But the cj where 9.0 to 1 compression. Then I read there were Q codes this year that came out late in 71. I also saw contradicting info that stated only M code was used that year. This is a 77k car that has never had the engine out. I know the carburetor is wrong( Hollie). I’m trying to install the correct type. It’s supposed to be a Autolite 4300, or 4300D. The other info on the car is 351 C with ram air, 4 speed with factory A/C. What’s your thoughts on this gray area? Thanks for any help you can give. Forgot to mention, I’m a virgin to the 71 To 73 era. Still sporting my 69 convertible. Been a ford guy for the last 40+ years. This is my 6th stang.This 71 gave me a cubby when I saw it. Had to get it for my soon retirement. Thanks