[roy381]

I recently picked up a 69 428 block with a set of 62 heads. The block and heads were done years ago and put in storage. All the machine work was done its 30 over. It came with a set of new old stock speedpro 2282p forged pistons I believe they have 12cc dish. The heads were also machined but came bare. Being 72 cc heads that would put me at 10.5 cr. My question is there anyway to lower the compression with these heads? Since the heads are machined and are original to the engine I would like to use them. I also have a set of 6x-4 heads to use but need to be redone.

Thanks in advance