5.3 into and 86 4x4 C10

[dothedew]

Thanks a lot. No clearence issues on the passenger side with those manifolds? No picture of that side/hard to tell.

When you hooked up you're fuel lines, what did you use? High pressure rubber? Nylon? Stainlesshose? I'm guessing you used the regulator built into the manifold for a dual line setup?

Are you running any sort of VSS?

[Kansas T]

I did notch the frame slightly in the rear by the crossover flange, but I'm not sure I would have had to. I looked through my pictures and I don't have any showing that. I used high pressure rubber hose for the fuel system and Dorman fuel rail adapters to the stock fuel rail and regulator. There is currently no vss and it runs great, but I still plan on putting one in sometime. If you don't use the vss you'll get a high idle code, but it can be shut off in the programming.

[dothedew]

Thanks for all of this. I'm looking to install mine on a test stand to run for a bit to ensure the wiring has all been done correctly, and install during the winter or early spring. Really looking foward to the ability to just turn key and start, rather than pumping the gas and fiddle with the choke

Looking at one of you're pictures, the power steering pump looks like a new pump (5.3 pump). Any troubles adapting the lines to fit the old steering box?

[Kansas T]

That is the newer style pump that comes on the 5.3. I've heard that '81 and newer use the same fitting, so your original hoses will work. Due to its location, its a little hard to tighten the pressure hose down, but it can be done. I had to bend the return line pipe on the pump for frame clearance. Good luck with your build.

[bhuber24]

First of all, beautiful truck! I just picked up a similar 86 K10 that I bought a 6.0 for. Can't wait to get started!!!

[dothedew]

What did you do for the remainder of the exhaust? Did you use the factory Y-pipe and build from it, or just custom from the manifolds back?

[Kansas T]

It's all custom from the manifolds back. Dual 3" pipes with 40 series flowmasters. It dumps in front of the rear axle. I would go with 2.5 inch pipes if I was to do it again. The larger pipes make it pretty loud.