Engine Decisions

[WardaddysFury]

I'm thinking of swapping my engine in my '80 K20. It's going to be my keeper truck, so I am hoping to put the best set up possible. I'm not looking to go off-roading, mudding, or rock climbing. I want to just have a great reliability, power, and torque. It currently has a 383 stroker with a 400 turbo xmsn. It feels sluggish after tuning, carb adjustment, and more (not including rebuild).

Right now I have the opportunity to get a 427 or a 454. No matter what I choose, the engine I get, or the 383, will be rebuilt. Just getting the feel of what you all think about this, seeing how this is my first full project.

Thanks for the help!

[VileZambonie]

What gear ratio and tire size are you running?

[WardaddysFury]

I’m not too sure on the ratio, either a 4.10 or 4.56. I’m running 37” tires on 16.5” wheels.

[roundhouse]

I’d get another mechanic to look at it

It’s hard to find some one who is good at carb jetting  and setting the curve in the distributor

A 383 should be plenty powerful