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Oldsmaniac · 09-02-2006, 06:38 PM

The engine is a 1968 350 Olds smallblock. The number 5 on the head is what I used to determine. A big block would have a letter not a number on the head. The correct letter for a 68 455 engine would be a C.

09-02-2006, 06:38 PM	#3 (permalink)
Oldsmaniac Senior Member Join Date: Oct 2005 Location: NJ Posts: 432	The engine is a 1968 350 Olds smallblock. The number 5 on the head is what I used to determine. A big block would have a letter not a number on the head. The correct letter for a 68 455 engine would be a C.