Quote:
Originally Posted by humpy
i would go vortec 4.3 b4 i messed with a tbi 350...very close in hp and the 4.3 weighs less and is smaller and easier to install in tight places... just my .02 i hate tbi 350 engines and i am a gm person since i was a kid...the tbi 350 was the sorriest excuse for a v8 gm ever put out...
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Personally I wouldn't bother going from a 4.0L to a 4.3.....a lot of time and effort to swap it in for really no gain. The HP is pretty close between the Vortec 4.3 and stock TBI 350, but the 350 still had around 50 ft-lbs. more torque. But the key work there is stock and the power potential of the 350 is pretty much endless and relatively low cost. The 350 TBI engines didn't have super high power numbers if compared to current day engines, but at the time they were strong and much stronger than the previous generation carb'd 350 (TBI bumped up the HP around 40-50 as compared to the previous generation), and the TBI itself is not really the limiting factor but rather the heads, cam, compression ratio, etc... in rest of the engine.
I'm definitely not saying a TBI 350 is the be-all, end-all engine swap for a Jeep, but it is cheap and easy and can put out respectable power. Service diagnostic and repair is also pretty easy as compared to modern engines.