Hi!
When I had my engine rebuilt, the pistons stuck up quite far. The standard gaskets worked OK with the stock head. When I tried to put a flat 7:1 Winfield head on it, there was no way it would fit. My local machinist said he could fly cut the head but then it would be a lower compression if I ever wanted to put it on a stock engine. As the machinist also builds racing engines, he suggested I get a copper gasket and put it between two stock gaskets. The sandwich was, the block, a standard head gasket, the copper gasket, another stock gasket, and then the head. I also changed the studs to the chrome moly type. The only other thing I had to do was to make a new drive shaft for the distributor as it only engeged by about .1".
The gasket came from:
Clark COPPER Head Gaskets
10510 Nassau Street
Blaine, MN 55449
Phone: 763-786-9590
www.clarkcopperheadgaskets.com
I had them open the bore to .100 over to match my block.
It's been together for a couple of years and 2000 miles with no problem. I am also running a Ford F150 trans with OD (4th gear).
Good Luck
Dick