C3/LS9 That escalated quickly

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Oct 4, 2018 | 10:20 AM

Chrp 3rd

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Staging Lane

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C3/LS9 That escalated quickly

So I purchased this 74 off eBay. Has a lot of suspension goodys and brakes. While I was at it I bought a LS9/TR6060 from a ZR1 with 23k miles. I’ve done a handful of these ls swaps but this ones surely going to be interesting. Looking for some advice.

1. Who for the wiring harness and computer
2. Need Accessories that will allow me to have ac. Will the Holley in’s work or how should I do this?
3. What’s the best way to use this trans. It clearly needs a lot of parts to make it work. Thinking of just buying a magnum from RPM and trading this in. Thoughts?
I’m sure I’ll have many more questions along the way. I know this will be a challenge but I’ve done 2 chevelle LS conversions and 1 bel air and all 3 cars run and performe really good so I think I’m up for this. Thanks in advance for any help.

Oct 4, 2018 | 10:45 AM

Project GatTagO

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From: Little Austin

Selling that trans and getting a T56 Magnum would definitely be the easiest solution. If you plan to keep the engine stock, GM sells an ECU and harness for the ls9.

For accessories, I don't believe the Holley will work. I'd look at other options designed for the ls9 that do a good job of retaining proper blower drive.

You'll also have to sort out the dry sump issue.

Andrew