Ant85ttop

I was wondering if I put GT40 heads and an E303 cam with 93 cobra roller rockers how much hp would I get if I slapped that on my 85 5.0 motor with my stock carb and a edlebrock manifold.

Ant85ttop

No one has no kind of estimate how much hp i would get

hrd2bslw

Depends on which edelbrock manifold. Victor, Victor Jr, Torker II, Air Gap, RPM, Performer ???????

I would say a good 260 rwhp.

pizzarolls

if your going to get more hp's than u have now......just do it. don't ask....just do it.

HACKGT350

you and me have e6 heads which are absolutely **** you will gain a pretty good amout i was on another forum for 4eyed foxes and one guy made 60hp to the wheels with just ported/polished e7's and a small cam has the dynos from before and after you might have valve clearance issuse though i dont know if you have flat top pistons or not

ih8chevy

my man u dont have the e6 heads and neither dose the guy who started the thread, the e6 heads came only on the 86 model, u have the e5 heads which are basically the same thing as the e7's with the exception of carb to efi.

To the original thread starter, if u just put hte gt40 heads and the rest of ur setup u wont see more than 250 wheel, now u can port the gt40 heads out and see a huge gain with just that and with ur setup if u port out hte heads u will see almost 300 wheel. Now i would highly suggest getting just a slightly better carb so u can get more air for little money

Ant85ttop

Well I just got my car dynoed and it had 250 rwhp and 270 lbs of torque and the carb was running very very lean I will have the result of the next dyno after we rejet the carb

boof1027

I am in the same boat. My motor is older, how old I don't know but I do not have a roller cam. Good ole flat tappet here. The kit I bought is for a 82-85 so I think it is between those years. I wanted to know what type of heads I could run on it. I know the ones I have suck. I have cast pistons in this motor, I think I need to build me another motor later. What heads can I pick up used that will work and I can use on my next motor?

drhoward

I would say closer to 300, there are a few guys in here with gt40's with very little work done to them getting close to 300 with an efi system (with a good tune) so I can't see why you wouldn't get close with a carb