How do you guys like your 3.4 in your 1st gen 4x4's
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My truck is 2wd, but it's lifted with 235/75/15 on it. 3.42 rear gears. When it had short tires on it, it didn't get great traction and often easily spun the tires at lights if you got on it even slightly. It's important to note that there was a 4bbl on the truck at one time, and then EFI. If you are talking about the stock carb, I am not sure, but I seriously doubt it will perform like mine does as that stock carb is likely the worst carburetor ever made on the planet. Plenty of power with large tires still. I will also say that this truck is as strong as any 4.3 truck I have ever had.
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Torque of extra near liter displacement is going to be a good advantage.
With the fuel and exhaust mods I made to my 3.4, it can hang with any stock 4.3 truck out there. Now a built 4.3? I doubt it. The 4.3 can really make impressive power.
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I’m putting one in my 85 S15 Jimmy right now. I’ll let you know when I get it started. Motors in but I still got a lot of work to do.
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standing by for the report. Good luck Yowaka!
I have a 3.4 F-body engine in my '90 Trooper. Very happy with it. An awesome upgrade to the little 2.8, which struggled to pull this 3800-lb SUV around.
I've improved the 3.4 with upgraded air cleaner, Holley Big-Bore TBI and bored intake, SBC 1.6:1 roller-tipped rocker arms. Upgraded the exhaust with a dual-inlet cat (eliminated the restrictive exhaust wye), 2-1/2" cat-back exhaust with a Dynomax Super Turbo muffler (has a nice growl but doesn't drone).
It drags the Rolling Brick around pretty well! I wish it had more low end, the big exhaust cut that back a bit. It needs a Comp Cams "252" torque grind, then it'd be perfect!
The Camaro 3.4 with SFI has around 160hp, and the unfortunately-now-NLA GM Goodwrench crate 3.4 with the equivalent of a Comp Cams "252" cam made 160hp and over 190 ft-lb torque with a "wheezy" S10 carb and intake.
One S-10 dude over at the defunct S-Series.org (R.I.P.) made 187 RWHP with his hot-rodded 3.4.
So they have a lot of potential. Smoother and more compact than a 4.3 and should hold their own against a stock one. 4.3 does make more torque for sure.
I've been running my 3.4 for over 20 years and wouldn't part with it. Great engine.
Just my $.02......................ed
I've improved the 3.4 with upgraded air cleaner, Holley Big-Bore TBI and bored intake, SBC 1.6:1 roller-tipped rocker arms. Upgraded the exhaust with a dual-inlet cat (eliminated the restrictive exhaust wye), 2-1/2" cat-back exhaust with a Dynomax Super Turbo muffler (has a nice growl but doesn't drone).
It drags the Rolling Brick around pretty well! I wish it had more low end, the big exhaust cut that back a bit. It needs a Comp Cams "252" torque grind, then it'd be perfect!
The Camaro 3.4 with SFI has around 160hp, and the unfortunately-now-NLA GM Goodwrench crate 3.4 with the equivalent of a Comp Cams "252" cam made 160hp and over 190 ft-lb torque with a "wheezy" S10 carb and intake.
One S-10 dude over at the defunct S-Series.org (R.I.P.) made 187 RWHP with his hot-rodded 3.4.
So they have a lot of potential. Smoother and more compact than a 4.3 and should hold their own against a stock one. 4.3 does make more torque for sure.
I've been running my 3.4 for over 20 years and wouldn't part with it. Great engine.
Just my $.02......................ed
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