1976 Cheyenne LT1 swap completed and she sounds nasty! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

vannatta20 · 08-17-2018, 11:56 PM

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

vannatta20 · 08-18-2018, 12:11 AM

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**mongocanfly** · 08-18-2018, 12:12 AM

Sounds mean....like the lectric steering.....what cam you running?

Ghost's68 · 08-18-2018, 12:41 AM

She sounds mean! Waiting on my widowmakers here. Never seen electric steering but that’s pretty trick though. Cool build dude!

NC_John · 08-18-2018, 04:21 PM

Quote:

Originally Posted by Ghost's68

She sounds mean! Waiting on my widowmakers here. Never seen electric steering but that’s 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.

Ghost's68 · 08-18-2018, 07:44 PM

Quote:

Originally Posted by NC_John

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.

I’ve 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.

NC_John · 08-18-2018, 08:17 PM

Quote:

Originally Posted by Ghost's68

I’ve 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?"

vannatta20 · 08-18-2018, 09:55 PM

Right! These are not mufflers they are amplifiers!

87chevy.com · 08-18-2018, 10:14 PM

I thought u were putting the DI 6 cylinder in it?

vannatta20 · 08-19-2018, 08:47 PM

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.

**Clyde65** · 08-20-2018, 09:18 AM

Congrats!

Still working on mine(dads) I think I have a bad fuel pump! Real noisy!!

Custom 68 · 08-20-2018, 10:57 AM

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?
Thanks
Dave

**Clyde65** · 08-25-2018, 05:10 PM

Vannata20,

What did you do for fuel pump??

vannatta20 · 08-25-2018, 09:03 PM

I will be using a Boyd’s 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.

**Clyde65** · 08-25-2018, 11:37 PM

Ok, what pump are you using now? Walbro or?

Daaaanz67 · 08-26-2018, 12:05 PM

Very nice love the cam.

08-17-2018, 11:56 PM	#1
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 291	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.

08-18-2018, 12:11 AM	#2
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 291	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty!

08-18-2018, 12:12 AM	#3
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! Sounds mean....like the lectric steering.....what cam you running? __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

08-18-2018, 12:41 AM	#4
Ghost's68 Registered User Join Date: Jun 2016 Location: American Canyon, CA Posts: 253	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!

08-18-2018, 09:55 PM	#8
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 291	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! Right! These are not mufflers they are amplifiers!

08-18-2018, 10:14 PM	#9
87chevy.com BMW & ASE Master Certified Join Date: Feb 2004 Location: Houston, Texas Posts: 1,266	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! I thought u were putting the DI 6 cylinder in it? __________________ 1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress

08-19-2018, 08:47 PM	#10
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 291	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.

08-20-2018, 09:18 AM	#11
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	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!! __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-20-2018, 10:57 AM	#12
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,939	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? Thanks Dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

08-25-2018, 05:10 PM	#13
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! Vannata20, What did you do for fuel pump?? __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-25-2018, 09:03 PM	#14
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 291	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! I will be using a Boyd’s 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.

08-25-2018, 11:37 PM	#15
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! Ok, what pump are you using now? Walbro or? __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-26-2018, 12:05 PM	#16
Daaaanz67 Registered User Join Date: Nov 2011 Location: Idaho Posts: 857	Re: 1976 Cheyenne LT1 swap completed and she sounds nasty! Very nice love the cam.



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