I think I may try the 203 before I build another engine for it. I was curious if you guys have ever played with a cam in the 8.1 in the low 220's duration with any thing under a 114 lsa with about 4 degrees of advance? I had the comp 258 cam in it before I did the heads over I believe it was 206 212 on a 112lsa with .510 lift. The torque increase was pretty nice but ran out of steam around 4200. Just for conversations sake because like I said before you can't have your cake and eat it too, torque is going to be shifted with no change in displacement. I really wish you could put a 4.500" piston in a stock 8.1 block

 

with enough money anything is possible...

 

sounds good.

 

You're splitting hairs over 5-10 ft-lbs of torque on the bottom end.

We never offered cams on a 114 lobe separation with small duration because they don't produce enough power to warrant the amount of work to replace them. Reducing in lobe separation past 114 really starts to hurt the way automatic vehicles drive at low speed and makes for boats that pull when docked at idle. Surging and bucking can really ruin the fun of having a modified engine.

The factory 496HO cam is the best cheap and easy solution for stock applications looking for a lopey sound. On the other hand, a stock application with the BP-203 camshaft will have a hot rod sound, makes more power and drives nicer than the 496HO cam does.

 

That thing sounds nasty ! Love it !

Sweet looking rig from what I can see of it .

 

Yes I know splitting hairs, but had to ask not much info out there still on whats been tried....and you guys play with them all day. Thanks everyone for the comments.....heres a few pics of it

https://scontent-a-lga.xx.fbcdn.net/...13466484_n.jpg
https://scontent-a-lga.xx.fbcdn.net/...31140584_n.jpg
https://scontent-b-lga.xx.fbcdn.net/...19637517_n.jpg

and an open cut out burn out 8.1 Avalanche brakestand - YouTube

 

I’m not generally a big fan of the earlier Avalanche’s with all the plastic side panels and generally like the later models more, but you have one slick looking truck. Not overly done, just a clean looking ride with tasteful mods.

 

Thank you means alot...honestly I really wish I had bought a 2500hd but have made it a mission to make this how I want it

 

Nice ride Alex. I'd like to see it next time I stop at Kurt's house.

 

Thanks rob....def will have to swing by kurts when your up