351cj garage find

i came across a 351 in my dads garage the other i ran the casting numbers which are d1ze-9425-bb. and it came up as a 351 cobra jet im not so sure i believe what i see lol, any other ideas on identifying this mystery

my profile pic is the engine in question

Can you put up a larger pic?

The heads are Cleveland from what I can see. You can always drop the oil pan and see if it is 4 bolt main.

Planning on doing that soon, which I had technology to do a bigger pic, my phoone sucks lol. Also I looked it up they said the 351cj does use some shared parts with the cleveland. The thing it has going for it is it came out of a 71 or 72 mustang I'm gonna try and get the cast numbers off of the block.

I was able to find and run the casting numbers from the block today and it is a confirmed 351 cobra jet, Which is awesome I was thinking it was going to be a heavily modified cleveland 351

Very cool! The 351CJ was the most powerful Mustang engine available in 72-73. The muscle cars were on their way out by then. It wasn't a powerful as the 351 Boss but still made 266hp and is rare.

Yeah that 266 hp is an under rated number I believe, the most important part is the intake manifold its designed for power all you need is higher compression pistons. I love that word RARE.

There was a lot of underrating in those days. I owned a 1970 Boss 302. They were only rated at 290hp. It was an all out race motor. If I remember right, it had bigger intake valves and a bigger carb than a 428CJ. They used to joke that you could roll a tennis ball down the intake runners. It was basically a 4 bolt main 302 block with 351 Cleveland heads. An odd looking motor on the engine stand.

Yeah I understand man, the cobra jet intake for the 351 is one of the rarest intakes, I was told to keep it because they are great for power and drag racing