Thanks to the stock internals 5300 is my 1-2 shift and 5200 for the 2-3. I can only imagine what increasing the shift points by 1300rpm alone would do for track times. I wish there was a calculator for that to give me some idea or someone with experince who could guesstimate.

 

Idle on the 550 is perfect!!! I could listen to it all day. After doing some research today and reviewing cam profiles I believe I'll steer clear of the 127650. It is more of a race cam but man the power and idle are phenomenal. Right now I'm torn between the 127450 and 127550. Wish I could hear the 127450 as it would be better for the truck and my rpms but I have yet to find a video of it. Here's the specs on both for anyone interested.

Comp Cam 127450
Rpm Range 1500-6700. Lobe Separation 113* Intake Centerline 102*
Duration Intake 264 Exhaust 279.
@.50 Lift Intake 229 Exhaust 240.
Lift Intake .535 Exhaust .555

Comp Cam 127550
Rpm Range 2000-6900. Lobe Separation 113* Intake Centerline 102*
Duration Intake 272 Exhaust 287.
@.50 Lift Intake 237 Exhaust 248.
Lift Intake .547 Exhaust .560

 

Damn I love the 350! Not a huge fan of came lope, but that is freaking sweet!!!!

 

Is the 127450 VSR and no lock outs?

 

It to requires phaser modification.

 

I'm sad to hear a built trans only allows 5300rpm. I thought stock the truck pushes like 5600. I was hoping you'd say 5800 as then a cam on stock block built trans would allow a cam install that'd be useful.

 

When i said stock internals I meant the engine. It alone is the limiting factor. The built trans i have can take well over 6k and supposedly 1000hp.

 

I love em all lol. Found another vid last night of 127350 that had a lot more lope to the idle then the one posted above. Of course my goal is gonna power throughout the rpm range. The idle however smooth or rough will be what it will be. It's fun to listen and dream though.

 

Yea I know that. What I meant was whipple brings the shift points to 4900 to keep the converter happy. Aftermarket tuners bump it up some but not much. I was hoping built trans and verter would let you shift at the stock 5600 or past it

 

Yes the built trans and converter will allow for a lot more. One of the great things about the converter is it can handle lock up at later speeds and with more power. Stock converter has something like 24sqin of clutch surface. Upgrade converters can have anywhere from 70-100+ sqin.
With less power output at say 8-10psi you could still shift at 5600 and the converter needs to be locked by 68mph. My limiting factor is the powdered rods. I'm scared to push them that hard at this power level. So I shift at 5300rpm which is my peak hp as well.

 

My thinking is that my truck shifts at 5000 rpm. If I go built trans I can shift at 5600-5800 rpm. Then I can go with maybe the 127350 cam and get a good gain. My rpms are to low for a cam at this point

 

Removed by me. MMR will not be getting my business. Better deals found elsewhere with less negative feedback.

 

So are you pulling the motor and sending out parts? How bullet proff does that make the engine?

 

Yes I will pull the motor and send the heads to MMR and the block will go to P&M Performance a local engine builder. When the heads come back I will install the heads, timing componets, cams, and degree the cams. Then she goes back in the truck. Should be good to 900hp and 8000rpm though I never plan to spin it over 6500.

 

Man reading this is giving me the itch.

Why did you go "stage 2" heads and not the "3"?

I planned on going with the highest flowing heads and a biggest cam I could and still be practical.

Talking to JDM I would be around 600-650 on pump. That should be good enough on motor. A little direct port dope just in case.