Whitelightin2005

I have a chance to buy a set of 243 heads off of a 6.0 and a 224 cam. I have a 05 GMC with the 5.3. would like to get input if its a good set up or not. Of course gonna add headers and a tune after the swap and a CAI. Just checking before i buy on how its gonna be. Thanks guys

dmelvin

iTrader: (8)

You'll need to mill the heads .030 assuming that they're not already milled to keep your current compression ratio.

Personally I think the cam is a bit big if you're not going to put a stall on the truck.

Whitelightin2005

Yes i plan on adding a stall in the near future

grey matter 04

iTrader: (9)

that combo mill the heads .050 gain some compression and a 3600 stall with 410s it will run good

Cam is a bit big but will work
I prefer less cam and stall for my daily but its all in what you want!

Whitelightin2005

Am i gonna need to mill them .050 or .030?

ltr450ryder

iTrader: (13)

I go .050 so u can bump the compression up for that cam

grey matter 04

iTrader: (9)

.030 gets you back to stock compression ratio
.050 gains some compression

Whitelightin2005

Thanks guys. helps alot will post when i get it done

SloStepSide

iTrader: (8)

Is more compression better? I only ask im looking into the samething only with a 220.

grey matter 04

iTrader: (9)

more compression helps make a little more power and improves bottomend a tad
Basically yes it helps