tooquick2beslo

I would think so with the GT1 but not the GT2-3

abbo7

Good lord that GT-1 cam has some lift, expecially to be put in a 5.3L with stock heads.

Black02Z71

Gen III/IV

5.3L's can make some good hp, its the torque thats hard to get. I would like to see the dyno graphs, to see how much lowend loss there is with that big of a cam.

Did they have any accessories being driven by the crank, or did they have an elec water pump on it.

Jorday

there were a couple of data points in the 2000-2500 rpm range where the engine lost over 50 ft/lbs compared to stock.

Yelo

Torque comes with displacement.....at only 325 cid it's hard to make decent torque.

Just look at the numbers that the Ford 4.6 Mod motors are putting down.....500hp and 340ft-lbs......great horsepower numbers but the torque sucks

Sport Side

iTrader: (6)

yikes

hefdaddy007

what if you put a 4" crank in a 5.3? would it fit? long stoke gobs of low end torque. but probably ruin top end

2003Silvyrado

...horsepower is torque.

I saw that article too, I think they made like 78 hp with the milder cam and the headers, now that impresses me.

hefdaddy007

actually torque and rpm is hp

Torque * RPM

Horsepower = ------------

5252

Yelo

Actually, Horsepower is Torque times RPM divided by 5252....if your torque sucks (relatively speaking) but your RPM's are way up there you'll still make good HP. This is the reason why longer duration cams make power higher up and diesels will NEVER have killer horsepower (1500ft-lbs and 500hp is pretty common).

If you look at ANY dyno graph the place where HP and TQ meet is at 5252rpms....which is why you will NEVER see a diesel dyno graph with crossing lines