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Old 08-17-2018, 11:56 PM   #1
vannatta20
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1976 Cheyenne LT1 swap completed and she sounds nasty!

Hey guys I have posted some builds on here but this one is my LT swap. This is a LT1 with a 6l80e 6 speed auto trans. It has dual 3 inch black widow mufflers. For steering I wanted to try out electric power steering. So far its working great. The video I talk about it a bit more. Plan is to keep the outside the way it is. This is a driver and street brawler build. Not a show truck. I am to hard on things for that. Next I need to get a posi unit for the 12 bolt rear. Acceleration is great and it idles at 560 rpm with a texas speed stage 2 cam. This build is actually not a LT1 though. I fibbed. It is a L83 truck engine converted to the LT1 intake. I cant afford the 6.2. I got the L83 off ebay for 1800$ shipped. Bought the 6l80e of ebay for 700$ shipped. Installed a circle D 3000 stall in it. its a great combo and I love it. I convert gen V and Gen IV harness for standalone builds and this is second personnal build with a Gen V. My other is a 1996 2 door 4x4 Tahoe. That one is my daily. This one is close to being done. I am working on getting the factory AC working this weekend then start cleaning up the engine bay.






Let me know what you think.

https://www.youtube.com/watch?v=eLN3lajSpvY&t=140s

Last edited by vannatta20; 08-18-2018 at 12:20 AM.
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Old 08-18-2018, 12:11 AM   #2
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

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Old 08-18-2018, 12:12 AM   #3
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Sounds mean....like the lectric steering.....what cam you running?
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Old 08-18-2018, 12:41 AM   #4
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

She sounds mean! Waiting on my widowmakers here. Never seen electric steering but that’s pretty trick though. Cool build dude!
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Old 08-18-2018, 04:21 PM   #5
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Quote:
Originally Posted by Ghost's68 View Post
She sounds mean! Waiting on my widowmakers here. Never seen electric steering but thatís pretty trick though. Cool build dude!
I just got a pair of 3" race venoms installed behind my 6.8 L. Way too loud.... Not sure how long I'll run them. I thought my 40 series flowmasters were rowdy.
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Old 08-18-2018, 07:44 PM   #6
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

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Originally Posted by NC_John View Post
I just got a pair of 3" race venoms installed behind my 6.8 L. Way too loud.... Not sure how long I'll run them. I thought my 40 series flowmasters were rowdy.
Iíve always liked loud exhausts. Not open headers loud but loud is a ok in my book lol. I had to wear my shooting muffs when I started my LS swap in the garage. Lol rattled my brain at first lol.
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Old 08-18-2018, 08:17 PM   #7
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

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Originally Posted by Ghost's68 View Post
Iíve always liked loud exhausts. Not open headers loud but loud is a ok in my book lol. I had to wear my shooting muffs when I started my LS swap in the garage. Lol rattled my brain at first lol.
Well, let me put it this way. I had the truck hauled to the muffler shop on a rollback. I fired it up and drove it into the shop with open headers. When we were done and I drove it out of the shop, the guy inside at the counter said "I thought we put an exhaust on it, how did you guys make it louder?"
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Old 08-18-2018, 09:55 PM   #8
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Right! These are not mufflers they are amplifiers!
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Old 08-18-2018, 10:14 PM   #9
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

I thought u were putting the DI 6 cylinder in it?
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Old 08-19-2018, 08:47 PM   #10
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Well having 2 less cylinder would thought to be an easy fit. The accessory drive hit the frames way to bad. I did not want to come up with a new drive system. I then decided to do another Gen v swap.
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Old 08-20-2018, 09:18 AM   #11
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Congrats!

Still working on mine(dads) I think I have a bad fuel pump! Real noisy!!
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Old 08-20-2018, 10:57 AM   #12
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

That's awesome, Tell me about the power steering. I am working toward a swap but am going to try the V6 version in my Camaro just to be different. If that doesnt work then on to the V8 like yours.
What pump did you use?
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Old 08-25-2018, 05:10 PM   #13
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Vannata20,

What did you do for fuel pump??
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Old 08-25-2018, 09:03 PM   #14
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

I will be using a Boydís welding tank with a LT4 fuel pump. This will be controlled if the pwm fuel controller. For now I am using a stock electric in tank pump at 57 psi.
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Old 08-25-2018, 11:37 PM   #15
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Ok, what pump are you using now? Walbro or?
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Old 08-26-2018, 12:05 PM   #16
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Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

Very nice love the cam.
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