Which 4.3

mcbadwish · Oct 10, 2010

Will I be happy with any of the chevy 4.3's in my toyota? Or should I look for a newer vortec one? Truck is a 87 solid axle on 35's, 5.29s, going to get the adaptor to run the toyota trans.

TrikeKid · Oct 10, 2010

mcbadwish said:
Will I be happy with any of the chevy 4.3's in my toyota? Or should I look for a newer vortec one? Truck is a 87 solid axle on 35's, 5.29s, going to get the adaptor to run the toyota trans.

I can't say one way or another about which 4.3 to run, I know myself I'd run a TBI one but that's because I'm a cheapskate. I would advise against running the Toy 5 speed behind one though. They're just not that strong IMO. Perfect opportunity to swap to an automatic anyway.

Brian H · Oct 10, 2010

The tbi is easy to wire up. We put one in a sami with a aftermarket harness and it works great. The sami rips .:awesomework:

Pat · Oct 10, 2010

Whichever you choose get the motor as complete as you can, much easier than piecing together the intake, accessories, harness, etc later.

And if you go TBI I would look for the newer style front end accessories with the serpentine belt and aluminum brackets. I used an older ('86) Astro van motor and changed everything out to 94-95ish S-10 accessories. I wish I had just pulled a newer, complete motor to begin with. :beer:

whatthe? · Oct 10, 2010

Get a TBI one, the toy trans can live if your nice to it. Repeat-nice to it.

mcbadwish · Oct 10, 2010

What about vortec or not. And what years are the tbi ones?

Or are the vortec ones multi point

2slow4you · Oct 11, 2010

If you're adamant about running a toy 5 speed behind it you can always move up to an R151F. Should last a little longer since they were essentially the same trans that ran behind 3rd gen supra's, which had a lil more power then the 4.3.

whatthe? · Oct 11, 2010

mcbadwish said:
What about vortec or not. And what years are the tbi ones?

Or are the vortec ones multi point

I think they went TBI in '88 and to Vortec in '96. I could be wrong but it's close. Vortec is multipoint. TBI is simple.

Hip · Oct 11, 2010

some 92 and all 93s have the CPI Vortec which is 190 HP vs 160....or whatever. also seems easy to wire.

mcbadwish · Oct 12, 2010

well I bought a 94 s10 today with a vortec tbi in it. 200,000 on the clock with a burnt down auto got it for 200 bucks any one that needs any s10 parts let me know.