2.8L V6 question

[morty_d83]

I got a 1986 Comanche long bed with a 2.8L V6. It has no power or torque to speak of. Being its a Chevy motor and all. Would I be able to swap it out for a 4.3L V6 or 305 V8? I have owned my Comanche for 10 years and figured it is time to fix it up.

Or would it it be easy to change to a 4.0 I6?

[Pete M]

step one is to find out why your 2.8 is gutless. blown rings are bad, but a clogged fuel filter is easy. :thumbsup:

 

easiest swap is the early 90s 3.4L v6 since it will bolt to your trans, exhaust, accessories, etc. and it's fairly straightforward to wire in the Camaro/Firebrd fuel injection if you go that way.

 

after that is a 4.0 since if you're going to gut your entire truck, picking up a used XJ will give you a 95% bolt in job.

 

after that is a 90* chevy engine (4.3, 305 etc). it won't work with anything you've got now, and you'll need lots of custom parts or a big checkbook. (your 2.8 is a 60* engine and shares nothing with the 90* blocks)

[artimus]

ill eventually do the 3.4. these 2.8s suck!

[morty_d83]

http://www.crateenginedepot.com/HT-34-V6-Crate-Engine-S10-Truck-Repower-12363230-P25C2.aspx

 

This is a 3.4L engine that I found online. I am curious if this is the engine you were talking about.

[Automan2164]

Any old GM 3.4L will fit the bill. That one would, but I wouldn't spend that much money. Might as well spend that on a 4.0L conversion.

 

Rob L.

[Car RamRod]

I was in the same boat as you a few years ago. I found an mj locally with a renix 4.0 and a five speed. The engine was just so I had to go for a reman, but everything else was a home run, it just took alot of time. The added power, driveabilitly, mileage and reliability are well worth it.