LOW BUDGET V6 to V8 Silverado Conversion, Part 4 Electrical

Doing your homework ahead of time saves you TONS of headaches when it's time to get it done. I highlight how simple my specific conversion is, as well as how to make your conversion equally smooth.
Instagram - Mohawk.Motors
Facebook - Mohawk-Motors-107260317461918/
Grab Some Gear! - mohawk-motors.creator-spring.com

[@blueman5924]

As a seasoned carpenter, I can agree 100% with everything you said. 👍🍻🤙

[@MohawkMotors]

Thanks 👍

[@josephlegocki6750]

god i wish i lived closer to you... i need this...

[@MohawkMotors]

How far from Maryland are you?

[@josephlegocki6750]

@@MohawkMotors a million miles...

[@gzuesbuildz1169]

What’s up man I’m in the middle of swapping a 6.0 into a 2004 Silverado but the engine I got it off a 2000 truck do I have to get the 2004 harness and make it dbw or can I use the 2000 harness and fuse box etc?? Thanks

[@MohawkMotors]

You can use the dbc harness and fuse panel original to the engine, but you'll need to find an 04 or 05 PCM from a van. your 2004 truck uses the CAN communication system, 99 to 02 PCM's don't have that capability, and the only 03 to 05 V8 DBC engines were in vans. Can probably find a good pcm in the junkyard or online from a 04 or 05 2500 or 3500 series van with a 6.0

[@abecuh2800]

What year the motors?

[@MohawkMotors]

2005 Truck, 2005 engine and transmission

[@1FASTJ]

⁠Do you know what size hole I have to drill 1-1/2” or 1-3/4” for the gas pedal tac module wire grommet?

[@MohawkMotors]

right in between, 1-5/8" has been working perfect for me

[@kq2799]

Touche!

[@MohawkMotors]

lol

[@xelarated9160]

Can HP tuners turn off EGR, my truck is an 02 v6 that had the original motor replaced sometime a while back by previous owner and it was replaced with a non-egr motor. so the harness is there but there no where for the sensor to bolt on to so now i have a check engine light that i cant get rid of

[@MohawkMotors]

Yes. Hp tuners can disable egr

[@danleon4943]

what would cause no power to the transmission? and the throttle body stays idling high.? 2003 chevy silverado had a 5.3 i swapped a 6.0 off a 2002 cadillac escalade im using the 5.3 harness and fusebox

[@MohawkMotors]

could be lots of things causing the high idle. No power to the transmission I would start by checking all the fuses and make sure you didn't accidentally pinch the harness between the engine and bellhousing when installing the transmission. Also check the transmission connector and make sure there's no bent or missing pins.

[@Jenniferboyette941]

Oooo! That was wrong right there ole boy!! 😂

[@MohawkMotors]

Gotta make sure you come back!

[@robertsmith987]

You said gentlemen I had to look around 😂

[@MohawkMotors]

lol

[@anthonyapuzzo7619]

Have you seen issues with the C2/C1 connection differences ? Im having a issue with truck not turning on going to recheck the pink and green taped harness like you mentioned

[@MohawkMotors]

There are some differences on the C2 connector between the 99 to 02 and 03 to 07 classic trucks. Double check that you didn't miss a wire. The C100 and C152 connectors also have some differences between the 99 to 02 and 03 to 07classic trucks and even between different trim levels. Have to do some thorough detective work on those

[@1FASTJ]

I have a 03 Silverado SS engine with factory harness and a 06 Silverado v6 will there be any difference with the conversion electric wise?

[@MohawkMotors]

Your 06 silverado bcm and gauge cluster will be looking for a signal from a GBCM (Ground Battery Control Module), the 03 silverado didn't have one. Other than that, the 03 and 06 drive by wire throttle pedals are different, you'll probably need to get the throttle pedal bracket from an 03 to 05 truck to mount your throttle pedal if you want it to look factory.

[@1FASTJ]

@@MohawkMotors Ok thanks and can I just install a 06 engine harness and an 06 gas pedal so the battery light won’t stay on or would that not work?

[@MohawkMotors]

Using an 06 harness, throttle pedal, and TAC module should have you up and running with no battery lights or issues.

[@mannyedits779]

Is HP Tuners something I can get myself or should I find someone local that can turn off the security?

[@MohawkMotors]

HP Tuners you can buy for yourself, it's just a cost benefit analysis, it's not inexpensive, if you're willing to pay for it you can just go to their website and order it up, if it's not worth the price to you, then just find someone local that can do it for you.

[@donnymarks9842]

Do you have a driver side window switch for 06 gmc serria single cab or extended cab

[@MohawkMotors]

I don't sold off all the remaining parts I had, sorry.

[@donnymarks9842]

If you ever get one let me know

[@freddie2981]

So I’m in the middle of the electrical part of my 2006 Silverado ,from v6 to v8.i purchased a 2006 gmc 4.8 and engine and harness ,do you think that harness will work for me ???

[@MohawkMotors]

Yes. both 2006 so very straightforward swap. Make sure you get the throttle pedal, bracket, tach module, and jumper harness as well.

[@freddie2981]

@@MohawkMotors ok,it seems I have everything I need besides the bracket and what is the jumper harness ?

[@MohawkMotors]

The jumper harness connects the throttle pedal to the TAC module.

[@mblake0420]

Hey Jayson, I'm looking to swap in a 8.1 into my m1028 chevy square. I need the van accessory bracket I believe to not notch frame. From what I hear they are rare. You wouldn't know where to pick one up at do you? Or maybe you part number?

[@MohawkMotors]

A van accessory bracket for an 8.1, man that's a rare piece. You could probably find one on ebay, identify which year express vans had the 8.1 engine as an option, then search for accessory brackets for that year van. For example "2002 express 3500 8.1 accessory bracket" I got a bunch of results just typing that in real quick. Good luck!

[@bryanrodriguez1904]

I might have one @mbalake420 if you still looking?

[@colin8532]

OHHH, cliffhanger lol

[@MohawkMotors]

Trying to up my edginess! lol

[@darthinsidious1769]

For a 2002 Silverado v6 to v8 swap, do you have to do anything to the original BCM?? I’m having the ECM reflashed to v8 parameters and vats removed.

[@MohawkMotors]

Nope, BCM should be fine.

[@darthinsidious1769]

@@MohawkMotors Awesome thanks! And he’s really would like to buy merch! Your channels great!

[@MohawkMotors]

Thank you so much! Link to my merch is in all video descriptions

[@darthinsidious1769]

@@MohawkMotors done! A hoody and a shirt! Much Appreciated!

[@darthinsidious1769]

@@MohawkMotors hey! How do I get the lm4 ac compressor to work with a 2002 Silverado with ac lines? The brackets are different and won’t accept the Silverado compressor for that year? And the ac lines are different? I’ll buy more merchandise! Lol. Dying here! Lol

[@GrandPitoVic]

Lol the suspense.

[@MohawkMotors]

Can you even handle it?

[@GrandPitoVic]

Lol

[@GrandPitoVic]

Jua Jua Jua click you'll have to wait till next video. WT!!!! Lol 😆

[@user-bb4tz1ox4u]

Hey did you use the v6 stock fuse block? Or the v8 one?

[@MohawkMotors]

I used the V8 Fuse Panel

[@user-bb4tz1ox4u]

@@MohawkMotors thanks bro I just subbed I plan on doing this to my s10 that has the same setup should be same for me glad you showed the works thank you

[@MohawkMotors]

Appreciate the subscription! I wanna do an S10 but haven't found one yet that I like enough to merit the swap.

[@josealdava3897]

Do you sell truck beds ?

[@MohawkMotors]

not any more

[@imswyft4144]

What hardware did you use to mount tac module?

[@MohawkMotors]

Some small M6 bolts. I believe they were originally fuse box mounting bolts from another GMT800 I took apart.

[@imswyft4144]

Ohh okay thanks you and you just drilled the fire wall?

[@MohawkMotors]

Yup, just drilled and tapped for the bolts. It's not super thick, but all those bolts are doing is holding the tach module that weighs practically nothing so I'm not worried about it being a small amount of thread engagement.

[@imswyft4144]

Did you have any left over connectors that come from the body up to the fuse box. Like the single blue wire connector in the fuse box and a 3pin with brown black and grey wires

[@MohawkMotors]

IT's been a bit here so I'm stretching the limits of my memory. If I remember correctly, the 3 pin connector with brown black and gray is for 4wd for the front differential actuator, a 2wd truck will not have the connector to plug into it so you could have that plug left over if you are using a 4wd engine harness (it's integrated into the engine harness). The single blue wire connector I didn't have and can't remember off the top of my head what it's for.