One of my other engines is a 426 marine block. When I put this motor together I used 383pistons and 440 connecting rods in it being it is the same bore . So now I'm told that the pistons set low in the cylinders and I probably only have about an 8 to 1 compression. I don't remember how low they sit low compared to the originial 426 pistons. Is it possible to use a very thin set of head gaskets to make up for some of the difference in the piston height to get the compression higher? I don't want to get into shaving the heads. Just an idea.
Thanks, Alex