Technical Do the GMC 270, and 302 6's have special crank to flywheel bolts

If they do, do to the fine thread low profile head. I believe you could use an Aviation bolt NAS6200 series as a replacement.

 

Thanks,good tip.

 

I use Pontiac flexplate/ring gear ones from Pioneer. It's the 3 paired flat rectangular locking washer plates that are hard to find. But thanks for the info...

 

I used Chrysler 426 bolts from ARP. Had to face off the head to proper thickness. And cut the threaded end 1/8 off as I remember. They were readily available to me at the time, so it was a good deal.

 

Of anyone needs a few i acquired quite a few. Yes they are the same as pontiac

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