853 heads on a 6.0
#1
853 heads on a 6.0
I have a 03 2500hd that I need to take the heads off to get some broken exhaust bolts out and I have a set of stock 853 heads that I took off of my trans am. I am wondering if I should use the 853's or get the 317's rebuilt. Im looking to continue to use 87 octane, make little bit more power and mileage if possible. The only mods are shorty headers, muffler, cold air intake, tune. I also have the stock 00 fbody ls1 cam but I dont think it would be worth the work to swap that.
#5
#6
rebuild the 317,better port and a bigger chamber for 87 .look at a mild thunder racing or a mild EPS cam ,ether should increase power and mileage.comp 54-408-11 cam claims no retuning needed.comp 54-455-11 will need tuning ,but will make some useful torque.