Re: relieving valve pockets

Posted by Ozstatman On 2012/9/16 1:21:37

Quote:Ross,

With all that relieving compression would be affected but see it also has Arias pistons. So they probably have a lump on the crown which partly fills the combustion chamber and together with the "...cast iron 262 head with 1 cut..." gives the quoted approximate 8.5 to 1 compression ratio. My questions are: 1) How big a lump would be likely be required on the pistons? And, 2) Any idea of the cost of a set of pistons like that?