I'm gonna guess that this thing will be slower than stock unless you've got a 4000+ stall.

Mines a ~3800 with my 228 cam in a lighter truck and it's just about right, so I'd imagine that cam would need a lot more converter and some pretty serious headwork to make any kind of power

So if i get a 3800 stall how do yall think this cam will turn out? im pretty sure im the only one who is doing this where i live, everyone heres got .581 lifts 112 lobes thats top for trucks here.

ya your gonna need about a 4k stall, head work and maybe even fly cut the pistons to run that big..

Why are you wanting to go soo big?? Just to say you have a bigger cam then them.. It makes no sense to put a cam in that big, when a litter cam will make more power under the curve, make your truck faster... That is foolish in my op..

I think you'd be better off with this cam then...

http://texas-speed.com/shop/item.asp...d=171&catid=44

im actually getting AFR heads and some serious work done i aint putting the cam in yet..

no need for anything over 580 lift on stock heads and even that is high lift for stock heads...something like the popular 212/218 cam in an avalanche would run good with a stall. the heads on the 5.3's dont flow much past .550 fyi

edit: I see your post about AFR's now, why would you put those in with stock pushrods? still an awfully big cam for a heavy truck, is this a DD? power under the curve is what you want, not power over 5k rpms for a dd

Im getting Rods now. My friend has the same cam on his 5.3 silverado..he actually swears that he dynoed that camshaft with only springs and rods gave him over 45 hp...what do you think about that?

That is possible but where at on the dyno sheet did it make that???

thats what i mean about power under the curve compared to power at 7000 rpm where your motor is never at on the street at least