Re: Straight 8 Head Modifications

Posted by fred battle On 2009/4/10 13:57:52

Ths stock compression ratio was optimized for 87 max octane fuelafter WWll.Increased compression is the easiest way to improve performance/economy of an engine. I will consider a valve head-to-combustion chamber roof clearance measurement to baseline the factory numbers. This engine has a very well documented history from the original owner so this will guide me to work up to a number for material removal on the head sealing surface for a daily driver. Phred