Which Cam Would I Be Better Off Going With The
.566 Lift Or The.588 Lift With Stock Heads And Flat Top Pistons And A 3200 Yank Stall. I NEED TO HAVE DECENT GAS MILEAGE

 

Well - The lift doesn't play much part in the overall character of a cam.

What are the duration and LSA specs you are looking at?

I'm under the impression that the only cams that will not make gas mileage suffer to some degree, would be wider LSA, lower duration cams. Cams that most people would overlook.

Generally, the more overlap, the more inefficient the cam is at lower throttle ranges, and the 'thirstier' it'll be when the the cam is 'on'.

 

.566 LIFT IS 112 LSA DURATIO IS .222 .224 AND THE .588 LIFT IS 114 LSA DURATION IS .224 .230
PLEASE WHICH WOULD BE THE BEST TO GO WITH.

 

114 cam

 

If you are concerned about gas milege, go with something like TR220 on a 114 lobe sep angle.

 

WE put this in my buddys denali along with APE heads.His mileage went up

 

CAN I NOT GET GOOD GAS MILEAGE WITH A COMP CAM AT 114LSA

 

WITH THE CAM YOU GOT WHAT TYPE OF MILEAGE DO YOU HAVE I JUST SENT ONE JUST LIKE YOUR BACK

 

Tibuon and I are saying you will.
The Ls6 gets 28MPG on a wide 118LC not for sure but its wide.

 

My mileage I cant be happier compared to stock,you did the right thing sending it back.When I did mine years ago I wasnt that picky I went with this used $200 cam.The lift is free HP,so go with 220-224 range and 560-580 range and stay safe with the proven 114.

For me basically I went down 1 city and 1 HWY with the motor swap from the 5.3 and towing went up 3MPG.