My "Little" Project

[bszopi]

Works for me...

[grimmcs]

IIRC 3400 heads have 26.4cc chambers and the 3100 pistons have 28.6cc.

Can anyone verify this?
I want to be sure that the numbers are right.

[ForcedFirebird]

IIRC 3400 heads have 26.4cc chambers and the 3100 pistons have 28.6cc.

3.1 has 11cc pistons and 3.4 has 8cc.

[IsaacHayes]

It appears it's broke/down/needs fixing.... BRAAAAAAAAAAAAD!!

[grimmcs]

I looked at that but it wont load or do anything once you click the button. Can anyone get my this info?

[ForcedFirebird]

This gives you all the dimensions...

http://60degreev6.com/CR_Calculator

[grimmcs]

Ok, so the guy at Weisco is worried about the valve relief pockets. When I was talking to him I didnt know the cc's of the piston and the combustion camber in the heads. Does anyone know these numbers. I know that there aren't relief pockets, but I dont know the cc's of the pistons and heads. Thanks

[grimmcs]

Well im going threw Weisco for my pistons. After a bunch of emails and me setting up the order they say that they are not "comfortable" making the pistons with the info that they have...which is fine. I dont want pistons that "might" work. So they asked me to send a spare piston to them, which is funny because I just sold the 3100 stock pistons I had So now I have to go to a JY and find 1 piston.

[powerdoctor]

Arias claims thier high silicon forged pistons only need 5 thou of clearancing cold, and thats all they will swell, 5 thou.

I have seen stock pistons take alot, as long as you dont boost the shit out of it and keep your revs down you should be ok for a while.

Your tune and mix is what will keep it alive.

[grimmcs]

So does anyone know where I can get forged 3100 pistons with a .030 overbore?

What about stock replacements? Would they work? Anyone know where I can get some that are .030 over? I contacted Gmpartsdirect, just waiting for a reply.

I did find ones that said cast...but they have hyp. in the discription or they are flat tops.

[bszopi]

http://wiki.60degreev6.com/index.php?title=Custom_Pistons

Reminds me, I need to get back to moving information over to the new setup.

[IsaacHayes]

v6z24.com should have P/N's for the forged 3400 pistons from arias or whoever it was. It's in a sticky thread or somethign.

[ForcedFirebird]

I was thinking of making a set of billet AL pistons and testing them in various heat conditions. Would be much lighter than forgings, and would probably have better heat qualities.

Forgings will have a lot of blow by until heated to operating temps, as they swell tremendously compared to castings.

[powerdoctor]

The feel I got from the tech is they have no demand and don't give a f#ck!

You would think they could do this easily, but who knows.

Thats why I am promoting arais.

They are the only company I know that makes the pistons from slug blanks.

Most other companies use forged pistons from other engines that "line up" and sell those as being for 60 v6's.

[3400-95-Modified]

Thats really odd that they dont have anything for the 3100's when they sell replacement hyp. pistons for the 3100 and 3400's I know this because I bought a set... Cant they take the same dimensions and apply that to the forged setups?