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Discussion Starter · #1 ·

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soon ill have one..
well its not from a 2wd 4.3 but it does not matter..

what i have is the same as what you need...

so up to you.

will be from my 88 s10 blazer 4wd ( not 4wd anymore ) 2.8 / 700r4 auto.

there the same harness.
 

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Discussion Starter · #3 ·
I really thought that they were different. We did a 350 swap to an 87 that had a 2.8 originally and Dad had to mod the harness. Same with another swap that was a 2.8 truck originally. The swaps in 4.3 trucks I never changed anything on the harness.
 

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Discussion Starter · #5 ·
I have a stock 91 Syclone 92-93 Typhoon 4.3 engine wiring harness if youd be interested in that?
Dont think that would work either. I can look into it but I dont know HOW different it is because of any turbo stuff involved. Thanks
 

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U need a tbi harness. The sy/ty r not tbi. Also I believe the 2.8 & 4.3 r slightly different, but nothing major
 

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You need a TBI / auto trans harness. You can use one up to 93 truck / 94 blazer (as long as its not CPI ). The others wont work without mods. Don't waste your time pulling anything else. They are going to be brittle, and will test your patience. Get the right one the first time. They are common. I just saw 2 today at the J-yard
 
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