Re: Flywheel ID?
That's the casting number,but Chevrolet recognizes it as part #3739423 officially.
Used on 1955-62 M/T Corvettes w/V-8 small blocks,1955-64 Impala w/V-8 small blocks & 409cid,(but not w/Z-11 package),and a multitude of 1964-66 & 1967-69 series 10-20 Trucks w/230 & 250 cid. motors.
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