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srt cummins
09-12-2011, 12:36 AM
Been looking and really can't find much. Going to build a 6.7 for drag racing and little street use. So what would you run for pistions? Steel. That's coated aluminum or forged? Want it done right the first time don't really matter on price. Looking around 1,000+ hp.

bdp
09-12-2011, 09:09 AM
Not much choices out there other then Stock pistons. Only aftermarket right now would be any of the aftermarket Forged Aluminum pistons like Ross or Arias or Mahle.

srt cummins
09-12-2011, 11:12 AM
Ok. Well I'm just getting ready for my build would it be better to switch to 03-04 pistions and injectors what else would I have to change?

bdp
09-12-2011, 11:39 AM
You have to use 6.7 pistons, 03-04 is the worng bore size. The combustion chamber is the same in the 6.7 as the 03-04 anyway just a larger bore dia.

srt cummins
09-12-2011, 11:47 AM
Ok. So then is a cummins teflon coated better then mahle pistipn that has been teflon coated or will it be the same.

07dodge
09-20-2011, 09:44 PM
I have a set of new 6.7 cummins pistons for sale. They are cummins non emission pistons. They have bowl that is very similar to the 04-07 5.9 pistons. A wide and shallow bowl design.

srt cummins
09-20-2011, 10:27 PM
So would i have to use 04.5-07 injectors?

morkable
09-20-2011, 11:09 PM
I am using later 6.7 stock pistons, which have the 03 bowl design. I am going to get them coated and go with that,, more important with the rods in my opinion

seriousdiesel
09-21-2011, 08:55 AM
I have a set of new 6.7 cummins pistons for sale. They are cummins non emission pistons. They have bowl that is very similar to the 04-07 5.9 pistons. A wide and shallow bowl design.

Do you happen to have a part number so I don't have to bother Snege to dig for one? what are you looking to get out of your set? do they have rings and pins?

07dodge
09-21-2011, 09:49 AM
Do you happen to have a part number so I don't have to bother Snege to dig for one? what are you looking to get out of your set? do they have rings and pins?

New 6.7 cummins NE pistons - Competition Diesel.Com - Bringing The BEST Together (http://www.competitiondiesel.com/forums/showthread.php?t=118964)

Yes they come with new rings and pins. They are std bore, OEM cummins. I'm looking to get $1400 for them, I paid over $1500.

07dodge
09-21-2011, 09:50 AM
So would i have to use 04.5-07 injectors?

With the wider bowl design, you can use pretty much any nozzle/ spray angle with these pistons.

Mike Holmen
09-23-2011, 12:28 AM
remember with a racing piston there is no keystone reforcement land on the piston. A forged racing piston is just that, racing only. Seen a few melt this season, probably easiler than the stock piston would have.

little6cylinder
09-23-2011, 11:36 AM
I know monster pump mike has a 2 piece steel piston for the 6.7 if you wanna do something like that