BigTex

iTrader: (16)

I have a stock block with '01 6.0 aluminum heads. Currently it has 9.4:1 compression. I want to get the compression up on it. How much would I gain going to a 10:1 compression? This motor will need a good balance of HP and touque.

The pistons could be changed for escalade pistons to get to 10:1 for about $400. Would having the heads milled be better or cheaper than going to the pistons?

Has anyone done a "mild home port and polish" on heads with any success?

[ December 13, 2001: Message edited by: BigTex ]</p>

Trevor @ Texas Speed & Perf.

iTrader: (3)

Having the heads shaved will be cheaper than ordering and installing the Escalade pistons, but you'll have to get your valvetrain geometry back in check, so to speak. You'll need a set of shorter pushrods. You'd be looking at .030"-.035" off of the head surface to net 10:1. I don't know the exact #. 10:1 would be the most compression I'd run on a truck that is still gonna see any towing duties.
A mild port and polish job could definitely benefit, but only if it's done right. <img src="gr_tounge.gif" border="0"> I don't know much about porting and polishing, so I won't even attempt.

BigTex

iTrader: (16)

Thanks Trevor. I dont do much towing, but it is my daily driver. I agree on the port and polish. I really don't want to screw anything up.

Do you know a good local shop for the mill work?