358chevycamaro

iTrader: (10)

My current setup is a 347 with Probe forged pistons and Scat H-beam rods with a Futral custom nitrous cam and a Fast 90 setup on top of a set of Livernois Stage 2 LS6 heads. I am throwing around the idea of going with a set of forged pistons to net me around 13-14:1 static compression ratio as opposed to my cirrent 11.1:1 SCR.

Does any company mass produce a stock cube dome piston? I know a set of custom JE pistons or the like would be sweet, but I am trying to be as budget minded as possible. Any input, advice, or related experience would be greatly appreciated!

SnakeKiller

iTrader: (7)

I doubt it, atleast I didn't find anyone. A small bore engine takes a good sized dome to get the compression up there. With the different head chamber designs it would be tough to find a big domed piston to work with every head. Diamond did mine but they're custom.

358chevycamaro

iTrader: (10)

Sounds about right. I think I changed my plans anyways.

I am calling Alan Futral monday about grinding me another new cam. Swap my custom gring FMS 114+4 nitrous cam out for an all motor custom grind. Maybe even an alcohol carb setup possibly.

BAKED

iTrader: (14)

Why in the hell would you want to run alcohol on that thing mullet? To me it just wouldn't be worth the little gains you MIGHT get.

Beaflag VonRathburg

iTrader: (176)

^ I pretty much agree. The most you could pick up would be around 30 rwhp from the compression. I think for the cost of custom pistons, alcohol carb, and fuel setup, you could easily buy a 4 inch crank and some different pistons. I'm sure you'd pick up more power with the increased cubic inches and the added stroke would make it easier to increase compression.

EDIT: I just checked out some pistons and Diamond sells a shelf 10cc dome piston for 347s and 383s. They have valve relief options for LS6, 6.0L, and AFR heads.

Double EDIT: Those shelf pistons will only get you around a 1.7 point increase in compression compaired to a common -2cc dish piston on a 347. To hit 14:1 you'd need something in the range of a 19cc dome.

With a 383 going from a 2cc dish to a 10cc dome gives you right around a 2 point increase in compression. You could hit 13-14:1 rather easily and still have a decent sized chamber. I used 64cc to figure all of these numbers, with GM gaskets, and .007 out of the hole.

358chevycamaro

iTrader: (10)

Throwing around the idea of using some spare parts that are laying around in certain places just for the hell of it. Drunken ideas, that's all... LOL

I am close to being done with ******* with this LS1 and start on my SBC.

BAKED

iTrader: (14)

You would be backing up then....

What are your goals with the car? Shoot me a PM, there's no reason for you to back up to a SBC...... You can do it cheaper with what you've got, just change things up a little.

358chevycamaro

iTrader: (10)

2 different cars and I have a SBC partially built and my LS1. :wink:

I will shoot you a pm, to try and clear up all of the confusion...