Will a 351 W flywheel work on a 302? Or are they balanced different or somethin? Hmmmm.....

 

Well, I looked up flexplates in the jeg's catalog. Here's how they grouped them together:

302-351c/w 69-80, c6, 164 tooth, 11.4 bolt circle

289-302 68-76 c4, 157 tooth 10.5 bolt circle, 28oz balance

289-351 77-82, c4, 164 tooth, 11.4 bolt circle 28oz balance

Then they list the 50oz balance flexplates.

Form what I gather from this, they will interchange from about 82 down, if you get the tooth count/diameter right. I know these are flexplates and not flywheels, but my main concern would be bolt pattern on the crankshaft and balance. Looks like they are the same till after 81/82 when the balance changed to 50oz on the 302's.

 

Thanks....I found a date on the 302....it'sa '79....and i got the flywheel that was originally on the 302 from the junkyard i bought the engine from....both flywheels (302 and 351) are identical....except the one off of the 351 is in better condition....thank you for your help!