92 c1500 v6 to 383 tbi need advise on build

**twistedc1500** · 03-10-2012, 10:21 AM

Hey doober what tbi are you running do you have the sbc or the bbc tbi

**Doober** · 03-10-2012, 08:11 PM

It's a BBC TBI, I'd say if you're doing any kind of performance TBI build to go with that, the stock 4.3/SBC throttle bodies don't flow near as much air.

**twistedc1500** · 03-11-2012, 07:22 AM

I was told in order to run a bbc tbi the harness needs modification can explain on how to do that and send me pictures if possible of what it will look like installed

**Doober** · 03-11-2012, 08:13 AM

You just need correct connectors for the TPS and IAC. It's not a direct swap pin for pin either. Somewhere I have a listing of what pins go where and I'd likely have to go looking for it... I'll have to do it when I get back to town.

**twistedc1500** · 03-13-2012, 11:11 PM

I figured out what gear ratio I have in the diff GU6 3.42 will it be fine with the 383

**Doober** · 03-14-2012, 06:34 PM

Yep :) I have a 3.08 and it's pretty good, though 3.42s or 3.73s are better from a performance standpoint.

**twistedc1500** · 05-24-2012, 10:41 PM

So how do I install a BBC tbi on a sbc what needs to be changed on a the harness if you got pictures that would be great someone please help I'm getting closer to finishing my build I'm using edelbrock 3706 intake should I use the stock 454 adapter of a aftermarket one

**Doober** · 05-25-2012, 06:01 AM

I used the stock adapter and it's working pretty well for me. I've come across the connectors on ebay but I got mine for free from a junkyard. One of the other members here can tell you what wires go where for the IAC, they aren't a pin-for-pin match from the stock SBC IAC. I think his username is something like NastyZ.

*edit*
Read this thread:
http://www.fullsizechevy.com/forum/g...ot-454-tb.html