Flywheel question

[Colindunn]

Will the flywheel in my car right now, (1978 buick with the 3.8 and saginaw 4 speed) bolt up to my pontiac 350 im swapping in? or do i need a new flywheel for the pontiac 350? with a chevy small block flywheel work with the pontiac 350?

 

[pontiacgp]

here's a listing for most of the GM flexplates.

http://www.bulkpart.com/2/category/FLYgm.html

 

[Bonnewagon]

You need a Pontiac flywheel. Be aware of the register size, there's 2 sizes. This is the large size. Notice there is NO index hole, just the 6 bolt holes which go on only 1 way.