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Old 06-24-2014, 11:11 PM
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3.8 in s10?

I been wondering how well would a 3.8 be in a s10 say from like a 90s camaro. I know I talk about a 350 before I really dont want some really bad on gas like a v8 would be so I been thinking for more of a prep up v6 I know the 4.3 is what alot of people do but I like something different actually what I really want is a sin in alot of people eyes I would love a 4.0 ford in it lol thanks

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Old 06-25-2014, 06:41 AM
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You talk about a gas miser, then pop in there about the gas hog 4.0L Ford
A 350 in an S10 will get well over 20 MPG if you keep your foot out of it.. RWD 3.8L's only came in Camaro's and the FWD 3.8L's won't work in a RWD arrangement. They are different blocks..

Yes a Camaro 3.8 with an Eaton supercharger would be cool, but it's still going to have less hp than a SBC and still get about the same MPG.
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Old 06-25-2014, 07:09 AM
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Originally Posted by matt167 View Post
You talk about a gas miser, then pop in there about the gas hog 4.0L Ford
A 350 in an S10 will get well over 20 MPG if you keep your foot out of it.. RWD 3.8L's only came in Camaro's and the FWD 3.8L's won't work in a RWD arrangement. They are different blocks..

Yes a Camaro 3.8 with an Eaton supercharger would be cool, but it's still going to have less hp than a SBC and still get about the same MPG.
incorrect... they make a jig to mount the starter on the corret side for the fwd 3.8 to be used in rwd apps..

I'd get the 3800 out of the f body and add the fwd s/c and computer..
260+ hp and high 20's mpg
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Old 06-25-2014, 09:00 AM
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I've had a Buick turbo GN drivetrain in my '96 S-10 for over 12 years now. It was NOT fun to install nor is it even close to being "fun" to work on. Lots of mods including (but not limited to) building a removable dropped crossmember, relocating the steering shaft, chopping up the radiator core support to move the radiator forward 2", notching the PASS side firewall for the downpipe, etc. I'd say, go with an LS motor. Lots of power and great mileage to boot...

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Old 06-25-2014, 09:17 AM
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How hard would a 4.3 fuel injected be? I am only want around 200 to 250hp I'm not wanting A lot I'm wanting more to go on long trips 3 hours plus so I'm not wanting a v8 but I dont want the 2.8 that in it enough. I Don't think a 3.8 out of a old f-body would be that hard to find around here my mother had the 3.8 in her pontiac grand prix it was fwd but that was a great little engine. How would a 3.4 be I dont know anything about that other then I think its sohc I might be mistaken thanks
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Old 06-25-2014, 09:21 AM
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The 4.3L was a factory option, all parts available from any j/y or cheap Craiglist rust-bucket. It's just a 6 cylinder version of a 350 V8...

Russ
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Old 06-25-2014, 09:39 AM
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Originally Posted by gearheadslife View Post
incorrect... they make a jig to mount the starter on the corret side for the fwd 3.8 to be used in rwd apps..

I'd get the 3800 out of the f body and add the fwd s/c and computer..
260+ hp and high 20's mpg
High 20's very doubtful. Even though the S-10 is a small truck they still push a lot of air down the road. 31 mpg is the best I've seen on a S-10 and that was a 2.2, 5 speed .

260 HP is easy from the early 90's 4.3 CPI. Add a S/C to that and you have 330+. But low 20's mpg is the best you will get.

The best of all worlds is a 350 with aluminium heads. Keep it around 350 hp and you can get as good or better mileage than a stock 4.3. The only drawback to a V8 S-10 is that it is way more fun when you outrun a V8 with your V6.
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Old 06-25-2014, 09:43 AM
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How hard would a 4.3 fuel injected be? I am only want around 200 to 250hp I'm not wanting A lot I'm wanting more to go on long trips 3 hours plus so I'm not wanting a v8 but I dont want the 2.8 that in it enough. I Don't think a 3.8 out of a old f-body would be that hard to find around here my mother had the 3.8 in her pontiac grand prix it was fwd but that was a great little engine. How would a 3.4 be I dont know anything about that other then I think its sohc I might be mistaken thanks
Look for a S-10 you can get the engine and brain from. We built millions of 4.3 S-10's. What year is your truck?
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Old 06-25-2014, 11:27 AM
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Minds a 1982 s10 so it has the crappy 2.8 and the 200 transmission would a 4.3 drop in or would I have to do alot to get it to fix
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Old 06-25-2014, 01:33 PM
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.. RWD 3.8L's only came in Camaro's and the FWD 3.8L's won't work in a RWD arrangement. They are different blocks..
Sorry, but that is completely incorrect. The early Buick V6 motors (up to the Series I 3800 versions) use the normal BOP bellhousing. The Series II and later motors use the same bellhousing as the 60same degree V6 motors. ALL Series II 3800 motors use the same block and you can bolt a 3800 from a FWD car to a RWD trans. You need the 700-4R from a Camaro or an S-10 that originally had a 2.8 V6. This mythical difference between the FWD and RWD 3800 motors just won't die. Lots of 3800SC Buick motors have been swapped into RWD vehicles.
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Old 06-25-2014, 01:48 PM
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They had carburetors in 82 and no brain to worry about. You could put a 4.3 in with mostly junk yard pieces from 88-93 S-10's. Would be a little more work but you could put a 350 in for about the same money.
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Old 06-25-2014, 03:04 PM
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I am really thinking about finding a 1996 vortec 4.3 and take everything. If I was going put a v8 I would want a ls1 but I really don't want a v8 in it
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Old 06-25-2014, 04:03 PM
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The guy that does exhaust work for me swapped a fwd series1 3800 into an S10. When I asked, he said the swap was "no big deal" FWIW.
Problem with the s/c 3800 swap is that the throttle body ends up against the firewall when set to a rwd configuration.

My last V8 (350 sbc) S10 would get 17.8 mpg at 70 mph if I leaned out the carb jetting (would drive it 80 miles each way to work). Comp 292h cam, 700r4, 4:11s, and a 26" tire. I wouldn't be surprised at all to see mid 20s with an EFI motor and more conservative cam and gearing.
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Old 06-25-2014, 04:32 PM
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The guy that does exhaust work for me swapped a fwd series1 3800 into an S10. When I asked, he said the swap was "no big deal" FWIW.
Problem with the s/c 3800 swap is that the throttle body ends up against the firewall when set to a rwd configuration.
Yes, that unfortunately is a problem due to the integral TB on the Eaton. I've seen some people duct the TB to the cowl to take advantage of the cowl induction.
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Old 06-27-2014, 09:55 PM
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Ok y'all got me to thinking if I would put a 5.7 from like a 96 and up Silverado and take the wiring harness out? And a mild build if I could get around 20 mpg I would be very happy would it be do able?
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