Need some help with high torque 408 build

Darter6 said

I agree with what the others have said "BUT" we need to know the intended use.
Will it be in a 2500 lbs A body? or a 6200 lbs 1 ton truck that will seldom see 4500 RPM. When I first read this my thought was "Sounds like the perfect combo for my 88 D350 truck".

Click to expand...

85 W150 :-D

Sorry for the confusion guys. I should have shed some light as to what the motor this is going in...

It's basically a toy truck, for weekends, messing around, hauling my snowmobile and driving logging roads. I want to build a motor that's going to generate tons of torque but I also want to have the edge on new trucks that are rolling off the assembly line with 400hp. It seems like most 408 crate engines are re in the 400-450HP range.

Here's the thing, I'm doing a lot of other work on this truck this year, and if the aforementioned combination will work reasonably well, I'll probably go that route... then when my bank account recoups I'd already have a good bottom end to work with, I could just slap a new top end on the motor and down the road I go.