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Old 07-24-2009, 02:50 AM
Join Date: Jul 2009
Location: Cathedral City, CA
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twgjr is on a distinguished road
Default 4.3 Vortec engine swap

I have a '94 S10 Blazer with an 4.3 vortec engine vin w I'm wondering if another 4.3 vortec from a newer vehicle will fit?
Old 07-24-2009, 10:18 AM
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Posts: 532
Leeann_Bravada is an unknown quantity at this point

I *think* your options are 92-94 CPI engines. They made changes for '95, then more changes for '96.
93 Bravada Vin W
00 Astro Vin W
02 Astro Vin X
Old 07-24-2009, 10:00 PM
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Join Date: Apr 2009
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cage47 is on a distinguished road

Yeah, 92-94 was OBDI. If you want a newer swap it will be OBDII and you'll need a lot more wiring and computer. Not just a simple (yeah right) drop in, bolt it on and fire it up. It'll take a lot more changes. The computer in the OBDI is in the dash and the OBDII is in the engine compartment. ANd the fuel lines are different shape from 96 up. Not sure if the tranny's match up either. The computer might be different for that too. But someone with more knowledge on tranny's than me can comment on that.
1995 GMC Jimmy SLT 4x4
4.3 V6 Vortec
over 200k miles and still purrin
Old 07-25-2009, 04:03 AM
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Location: Cathedral City, CA
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twgjr is on a distinguished road


The engine in my '94 has over 200,000 miles and has blown head gaskets. it's been sitting over 2 years and I've only started it twice in that time.
Old 07-25-2009, 04:03 AM
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43, 94, blazer, chevy, engin, engine, gasket, head, matchup, miles, replace, sale, swap, swaping, tranny, vortec

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