Big block pros/cons?

[mr48chev]

More torque and power. Now, what's the problem?

From what I've seen they fit into a Task Force style truck pretty well.

Loaded I'd think you would get just as good and maybe better gas mileage than a small block pulling the same load. Not spectacular but passable for what you have and what you are doing. And it will climb a grade a lot better. With my small block pulling my boat I am way way over in the slow lane getting passed by VW micro Buses on long grades.

[buggy5872]

I went from a small block to a big block in Big Bertha. I got 9 mpg with the small block towing 11k lbs trailer. I get 9 mpg towing with the big block going 15mpg faster up the hills. I did lose 2 mpg empty but 90% of the time I am towing. I would go with the big block

[Stepside Jim]

One thing that's not mentioned is whether the sub frame will changed or not. If something like a Camaro subframe is done I'm not sure if the sitting height of the engine changes.

I'm saying this also for if the original steering box gets in the way for the exhaust, I see some with small blocks having to work with the steering box sometimes.

Other than that there is plenty of side space. The only issue is between the firewall and radiator. I left about an inch between the valve covers and firewall, this, even with the short water pump, didn't leave much space for a mechanical fan. The optimum way for me was a dual electric fan, the water pump pulley fit between the two electric fan motors.

This picture gives an idea of the front fit.


And a front view, mine does have a Camaro front on it.


As I mentioned, I'm not sure how it settles in with a stock frame, someone else my have that answer.