I talked to Comp Cams and got their suggestion on a cam for my application. What I sent them.

- 02 Yukon
- 5000+ lbs
- 3200 stalled 4l80e
- needs to tow a little
- needs to support a turbo in the future, not too much overlap

Here are the specs suggested. What do you all think?

I'll get springs, hardened rods... what else?

 

It looks fine.

-8 degrees of overlap.

How it "feels" is going to depend on how loose or tight the converter is.

 

Oh.. shes a loose girl alright

I'm used to it.

 

It'll be peppy. Does that help? lol.

When I ran my Comp LSR265 grind, (219/227 I think), it was plenty peppy off-idle.

 

Good to know! A this point ANYTHING will be better than my stock engine! 285 hp, suck....

 

Seems fine. you will need springs! Singles will be fine, and I'd look for a .625" lift. Hardened pushrods are a must! 7.4s would most likely work, but I would recommend getting a pushrod length checker and making sure. Also, get a really good trans cooler! like a tru cool 40,000.

 

It pull good at wide open but when towing with the converter locked on the highway it's gonna be a dog. For a 5.3 that's gonna tow a 222/222 .596/.596 115+4 is a bit much. Turbos don't need a lot of duration so personally I would move down into the 218 range.

 

I'll get the length checker!


Covered on the cooler. Tru Cool 40k!

 

Good point on the duration. I'll see if they can do 218/218 596/.596 115+4 then.