Header help

[Dan96c1500]

Quick question, im putting a 75 350 into a 96 c1500 and im wondering which headers will fit?

Currently looking at these..
https://www.summitracing.com/parts/sum-g9006/make/chevrolet




Any help is appreciated!

 

[b454rat]

says fits squares basically, but I don't see why the fitment would work. But what about emissions and the OBD-II bs?

 

[PlayingWithTBI]

^^^X2 - unless you don't care about emissions, go for it!

 

[Dan96c1500]

Not worried about emissions.

I kno they will fit engine jus not sure if they will clear body and other stuff beings the 20 year diff between engine and body

 

[kennythewelder]

Summit says no,those wont wont fit your truck. IDK why, but IMO, you need to look at headers for a 96 2wd truck. Anything else may not clear the frame on your truck. Engine wise, the exhaust ports are the same between the 2 engines. So here is the page for your 96 headers on Summits sight.
https://www.summitracing.com/search...el/c1500/part-type/headers/submodel/silverado

 

[Schurkey]

im putting a 75 350 into a 96 c1500

That sounds like a really bad idea. Why throw away power? The '75 cylinder heads are garbage, and you're giving up the roller cam, too.

 

[Dan96c1500]

That sounds like a really bad idea. Why throw away power? The '75 cylinder heads are garbage, and you're giving up the roller cam, too.

Yea wat iv heard old motor was shot.. jus need to know what will fit..

 

[kennythewelder]

Ot will fit in the 96, but your 96 trans is electronic and the 75 is not. You will need to look at a bunch of carb swap videos. The electronics from the 96 will not work on the 75 engine. There are people who have swapped a carb on a vortec, and made it work. From what I have seen, mostly on you tube, if you hook up all of the grounds from the 96, the swap should work. There was an argument on here about the carb swap not working with a 4l60e teans, but another member said he did the swap, and it works rite.

 

[Dan96c1500]

Ot will fit in the 96, but your 96 trans is electronic and the 75 is not. You will need to look at a bunch of carb swap videos. The electronics from the 96 will not work on the 75 engine. There are people who have swapped a carb on a vortec, and made it work. From what I have seen, mostly on you tube, if you hook up all of the grounds from the 96, the swap should work. There was an argument on here about the carb swap not working with a 4l60e teans, but another member said he did the swap, and it works rite.

I got a fresh rebuilt th350 im putting in it

 

[kennythewelder]

I got a fresh rebuilt th350 im putting in it

So thats good, but what about your gauges. You will need new gauges or at least you will need to ground the OE gauges to get them to work, and the speedo in the truck wont work because the 96 speedo runs off of the VSS, and a TH 350, uses a cable. So, your easiest bet would be a set of after market gauges, including speedo. Just passing along info for you. I looked at carb swapping my 97 5.7 - 350. It can be done, but it aint easy.