Will a 2003 6.1 hemi camshaft fit on 2007 5.7 hemi?

 

Yes if it were a 2500 series without MDS, but even then the gains aren't that great. Lots of info through google and through the search icon.
For all that effort, you get much better gains with a 5.7L grinded cam. They aren;t all that much either.

2007 1500 has MDS. You need to get standard valves to replace the MDS one's or a special MDS grinded cam.

 

Dunno where you would get a 2003 or 2004 6.1 cam? the 6.1L HEMI's weren't introduced until 2005. Regardless of the year, 6.1 cams are not a popular choice for rams especially QC's.

The 6.1 does gain you some top end power, but sacrifices a good bit of the low end torque which is what you need when your trying to move a 5500 lb truck. Lots of the 6.1 cams are used for regrinds to something with more torque like a crazy spartan, crazy Jay, comp 210, 210X, or FRI sidewinder.

nateroach

 

There is a guy who told me it should help me a little. They are selling me the cam for 75.00 and a buddy will install it free.. The guy selling it to me never used it. it is new in the box. That is why I thought it would be a good upgrade...

 

I know a few guys running them in their 07's, just swap out the cam and turn off the MDS (dont know why you would have that on anyways) with a tuner and call it a day. Topend will be there but lowend is going to SUCK.

 

EVERYBODY I know who jumped on the 6.1 cam bandwagon back when it was the "IN THING" has since either gone to a different aftermarket cam or gone back to the 5.7 cam except one guy with a RCSB 4x2.

What Nate and Truckin' said. You gain a tad of top end but loose A LOT of low end torque. Plus if you use a non-MDS cam and MDS ever kicks in - say bye-bye to the engine.

An upgrade that DECREASES performance is NEVER a good upgrade, even if it's free...

 

What I have hear that will help with that cam is to get an adjustable timing set and adjust it I think 4 to 6 degrees and you'll get some lowed back. Then again that was also in a reg cab too.

 

heck if you can get it that cheap and have it installed for free then buy it, send it to Stu at inertia (or another shop that can do regrinds) and have it reground to something more QC friendly(something with more torque)

nateroach

 

The cam Marty had custom ground for me when he was at KRC Performance was their standard KRC210 with a -4* grind. I never did install it and sold it, but I felt it the same cam & grind in a '05 QCSB Hemi 4x2 and the thing was a TORQUE BEAST!!!

 

about how much is it to grind it at a machineshop?