Blue80vette

I had just pulled my brand spanking new 330 hp 350 off the engine stand and was just about to bolt the flex plate on, when I discovered that my 1980 vintage flex plate WON'T FIT!! :cuss

This after weeks of sweating through a ball joint/bushing replacement and a steeroids installation.

Oh well, I guess I can wait till next weekend. :nopity

Crash Dummy

Why will your '80 flex plate not work? I'm so lost back in the '70's you will just have to humor me. I would think a crank bolt pattern for a flexplate would be the same all the way at least up to the end of the C-3's. If not.... you learn something every day about these 20-30 year old cars.

Blue80vette

I don't really know, the bolt pattern on the crate motor crank is mucho different (smaller). I had just azz(u)med flex plates all had the same bolt pattern. :nono:


[Modified by Blue80vette, 12:51 AM 8/3/2003]

Shark Racer

IF you're talking about the 330hp 350 GM sells, that has a 1-piece rear main seal. You'll need to get the specific flexplate for that engine.

The 1980 motor uses a 2-piece rear main seal and appropriate flexplate.
http://www.paceparts.com/product.asp?0=287&1=289&3=1101

-Steve