now i have two engines, one is a "B" code 2.8 which from what i have discovered is a like 115 horse carbureted v6 out of a truck. it was rebuilt and dropped into this 84 camaro. i know it was rebuilt because the rebuild tags for it are in the car.

then i have a a "rebuilt" v6, its prolly an 86 or so but it has tbi. id like to build up the carb engine in the car a little because i know it has about 30,000 miles on it but im wondering if there is anything in the 86 that should go into the other engine. i dont want to do a swap because it would involve new wiring harnesses, fuel pumps, plus id be going from manual to auto and i dont trust an auto.

anything for me?

 

Ever so slightly larger valves, a different cam(I think its better if memory serves?) and a stronger crank are about it as I recall. And I don't think there is a tbi 60/6, unless maybe the trucks had it, which is possible I suppose.

 

If you want to swap any parts over, imo you might as well just swap the whole short block. Then you won't have to get gaskets, and you will get all the updated parts for less work.

 

If you want to build anything up, AT LEAST use the 3.1 crank. I've driven both 2.8's and 3.1's, and it does make a noticeable difference in the low end.

 

The 3.1 crank won't fit in the early 2.8, due to main journal sizes.

If it was me, I would use the newer engine, due to the increased reliability of the large journal crank. The early 2.8s could break the cranks in stock form!

The S-series did get TBI from '86 to '93 on the 2.8L and 4.3L. A quick search engine search would have revealed that.

You don't need to swap trannies just because you would be swapping engines. The auto or manual tranny will bolt to the back of the 2.8L engine, they all have the same dimensions.

BTW, a Frankensix would use parts from newer generations of 660 (gen2 or gen3), not parts from the same generation.

 

lol ok. and yes sorry i forgot to mention it is an s series 2.8 out of an 86 or so. as for the swap i dont want to spend money for the harness and then id have to rig the ecu. im a broke college student, i dont have any money to be pouring out. i just spent $20 on a fender and that almost broke me lol.

so is the cam in that s series 2.8 any hotter? i wouldnt mind doing the work as much as spending the money lol

 

Why is it you think you have to switch to TBI? Just swap the new shortblock in with your carb and manifolds, don't have to touch either harness or ECU. As for the cam, I THINK it is a more aggressive cam, but I can't recall for certain, could just be its better for mpfi. But again, imo just swap the shortblock.

 

I think you mean long block. Short block = block, crank, pistons and sometimes cam. Long block, includes the short block, plus heads and valve train.

I think I was reading this a bit backwards earlier, as in the S-10 was the '84 and the F-body was the '86.

Anyway, to put the '86 2.8L in your '84 you'll have to add an electric fuel pump, since the '86 block does not have provisions for the mechanical fuel pump. To keep the swap easy, keep the carb. I prefer EFI though, even TBI.

 

Yeah I meant long block, he should run the 86 mpfi engine, but reuse his carbeurator and LIM along with his harness. Then its pretty straight forward, more simple than swapping in a 3.4 even.

 

The 2.8L out of the truck would be a TBI engine, not MPFI.