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Old 01-25-2007, 04:14 PM
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Originally Posted by johnnyford
I have a 68 mustang fastback j-code car w/a 302 4bl. Im trying to figure out if the motor is original. The date codes on the heads, and intake jive w/the build date of the car but I havent pulled the starter off to ck the code on the block(Im told that is where it is) . My question is do mustang motors have vin# stamped into tne block and if so what is the loctaion, if not, then how do you positively I.D. a motor as original to that specific car. I know that the casting number will give you the model line= Z for mustang and that just confirms that it is out of a mustang. Date code will tell you the year that mustang is, but not specific car. Any experts out there this is my first stang. thanks..
Not an expert. I can't remember my exact numbers.

= Finally junked the block 3 years ago. It laid outside for 8 yr. doing a rust test. By the way, LPS-3 is a good cylinder preservative.

My (68) J code car had a stamped number on the machined water pump boss in front of the left head. When the head deck is milled it comes out on the water pump boss. I think just an assemby date for the engine. 7K27 Oct. 27, 1967. I think.

It also had a vin on the milled spot immediately behind the intake manifold. I think it said 8Rxxxxxx. R for San Jose.
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