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Original engine
I just purchased a 72 Mach 1 351c, how do find out if my engine is original? Thanks for accepting into the club.
If it's original it will have a partial VIN stamped on the rear of the block, on the driver's side, just below the head gasket. It'll take a mirror, cell phone camera, or inspection camera to see it. The casting number and date code are on the other side of the block above the starter.

“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
Thanks I will look for the number. This is the picture I know it’s been wrenched on. But would be cool if that is the original block.
[Image: D0-D20-C9-A-AA00-4-E47-AC20-1-D74-B8-D51-B2-B.jpg]
Welcome from the northern Netherlands

73 modified Grandé 351C. Almost done. 
71 429CJ. In progress
Welcome from Omaha! Where in Colorful Colorado are you?

71-73 Mustangs never die, they just go faster!
Thanks Fabrice and Not A T5, I'm from Golden. My first car was a mustang and now I get to re live that, took 5 cars to finally get one that wasn't rusted out. Found a 72 Mach 1 351 CJ 4 speed Q code. But im not sure if the engine is a 351 CJ, but its a 351 c
Hello and Welcome from Michigan.

run_horse Run Horse Run!
John 72 Q Code
Hello, welcome from France.
You can check as well a small number on each corner of the heads. If you find 4 then they are 4V heads.

Mustang, beer and rock'nroll
Welcome from Iowa.

73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

- Jason

[Image: 082-hot-rod-power-tour-2017-1970-1970s.jpg]
Welcome to the Forum from North Carolina.

When a man is in the woods and talks and no women are there is he still wrong??
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