what engine do i have?

Asked by Jan 16, 2009 at 08:11 PM

Question type: General

My engine code is (VO0313 FAZ) and on the front outer head is the number 638.  I told it was a 305 or 350 out of a 87 chevy truck

2 Answers


The heads belong to a 350ci from around the year that you state. But the only way to tell for sure is to take the heads off and measure the bore. But yeah '638' should be a 350ci.

2 out of 2 people think this is helpful.

Thanks jesse1688.

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