I am changing my truck over from a 3 speed manual to an automatic. how can i tell which flywheel i need to get. i have heard that if its not the right weight it will make everything unbalanced. any ideas ????? I'm going to be running a 302 with a c6

 

What year/vehicle is the 302 engine from?

 

1978 lincoln versailles

 

You want a 28 oz imbalance flexplate with a 78 302.

 

But is it a 302? 1978 Lincoln Versailles was also available with a 351W. The flywheels are not the same.

 

Is the difference the diameter/tooth count? If so, using the C6 trans he will very likely need the larger, 164 tooth flexplate, no matter if he's got a 302 or a 351. The bolt pattern is the same. It would be good to know the application the trans is from, as that may have a bearing on which flexplate is needed, too.

On a side note, the C6 would not be my choice with a 302, way too much hp/torque loss for that small of an engine, but that's another post for another time. ;-)

 

1978 Versailles and etc:

EOAZ-6375-A (replaced C5AZ-6375-T) .. Flywheel (flexplate) 164T / Also 1965/68 289.

D1ZZ-6375-A .. Flywheel (flexplate) 164T / Marked D1ZP-AB / 1971/ 351W / 1971/74 351C 2V / 1979 302 C6.

 

the guy i bought the tranny from told me it was from an 85 E100 van

 

and yes its a 302 just had it rebuilt about a month ago.I didn't know the lincoln came out with a 351 though.

 

so as i understqand it i am going to need the 164 tooth flexplate??????
thanks for the help and info folks