[turfman]

I am new to this forum. I am restoring a 1965 Mustang GT fastback and I just pulled the engine. The engine code stamped on the block above the starter is "7J5" C80E 6015 A. I openned the valve covers and stamped on the driver side haed is 289 and the number 66, on the passenger side the head is stamped 289 and 65 I pulled the intake manifold and stamped in the Valley is 302. Any advise? This probably not the original engine. Is this typical? Thanks

[pcfrisch]

Welcome to the Forums, hopefully this area will help.

[dferre13]

Sounds to me like you have a 68 302 block. the timestamp suggests It was cast in October of 67. Im going through the same thing mine is a 65 289 in my 68 "C" code car. hope this helps.

[fonzoayala88]

its a 45 year old car, its not gonna be stock, unless u bought it from a dude who bought new, and never sold it. mines a t code, it had all v8 parts on it, a 302 like urs, and rust problems. welcome to our world of imperfections. fast backs are nice cars, do u really wanna go to the whole thing of making it boring stock? are u gonna sell it? if u wanna enjoy a car, y not keep it and make it the way u like it most? i like a shiny engine bay, with no room, flashy paint, and a loud system, and it has to be fast, whats the point of a slow fighter plane? i guess im just saying stop worrying of the origin of ur 302, and more about, how u gonna mod it to be more fuel efficient, reliable, and more comfortable to drive. but what do i know, im just a guy with a mustang.

[Ivy66GT]

Originally Posted by turfman

The engine code stamped on the block above the starter is "7J5" C80E 6015 A....

That is a 302 block cast in Cleveland on 5 September 1967. They didn't use the letter I in the casting date codes. Interestingly, this is a block from which the factory built both 302s and earlier some '67 289s when they ran short of 289 blocks. The date code says it was for a '68 car though so it was likely a 302 from the factory.

There was a 289-only C8 block but its last letter would have been a 'B'. Its mostly not the original engine for your car although one of the heads might be.

[Calponycarsmike]

Yep you got a 302...is your car an A or K code?

[turfman]

it is an A code car

[turfman]

Originally Posted by dferre13

Sounds to me like you have a 68 302 block. the timestamp suggests It was cast in October of 67. Im going through the same thing mine is a 65 289 in my 68 "C" code car. hope this helps.

Thanks for the clarification. I will most likely re-build the engine as is.

[turfman]

Originally Posted by Calponycarsmike

Yep you got a 302...is your car an A or K code?

Thanks Mike. The car is an all original A code GT exept for the engine.

[67ragtopStang]

turfman, an engine swap with dferre13 would have been a good deal if only you lived close to each other.

[S1924]

can any of you guys help me decipher the engine block code on my 1966 Mustang GT? It is D10E-6015-AA there is a no. 29 on the side adjacent to this engine code and below it is the following 1J13.

Interested to know if it is a 289 or a 302 and what year. When I bought the car I was told the engine came out of a 1971 Torino and it was a 302, but since then several people have told me it is a 289. Engine runs good - just curious. Thanks

[Veronica]

Hello. The 289 was phased out in the 68 model year. What you have is a 302. The date on the block is septeber 13th, 1971, so, it was probably either a 72 Torino, or the 71 blew up it's motor and that's a warranty block.

[S1924]

When I bought the car I was told it had a 1971 Torino 302, however, at a recent car show I was told the engine was a 289 because it had 3 bolts at the damper.

[Ivy66GT]

I rarely believe everything I hear at a car show.