LS3 swaps into C5's
Thread Starter
Racer
Joined: Aug 2001
Posts: 277
Likes: 17
From: Smyrna Tn
LS3 swaps into C5's
Just things I have learned and seen results on the Dyno with above swaps. Headers need to be 1 and 7/8. Ditch the 1.75 headers. Air Intake, Ditch the C5 stuff, go with LS3 style and blade MAF sensor. Huge gains when you swap out that tired LS1 or LS6.
Advanced
Joined: Nov 2016
Posts: 86
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I find it easy to locate the 97-00 MAF adapter, but not the 01-04.
I.e. all the adapters I find are for 5 wire to 3 wire or 3 wire + IAT breakout. None of these will work for me....
https://www.racetronix.biz/p/maf-ada...ire-gt/maf-001
http://www.casperselectronics.com/ca...product_id=377
https://www.michiganmotorsports.com/...r-lsx-ls-swap/
The other adapters are backwards and say "This harness allows you to run an LS2 style MAF on vehicles with an LS7 / LS3 style plug"
Thread Starter
Racer
Joined: Aug 2001
Posts: 277
Likes: 17
From: Smyrna Tn
C6 Corvette LS2 to LS3 or LS7 MAF Adapter Harness MAF0009 5 Pin to 5 Pin
by 3.8 out of 5 stars
| Price: $15.96 & javascript:void(0)
- Premium Made MAF Adapter Harness Allows the 05-07 LS2 Corvettes to Run the Later LS3 and LS7 Air Intake Systems.
- MAF Adapter 5 Pin to 5 Pin.
- This MAF Adapter Harness Will Fit other Vehicles. Please view the Detailed Pictures to be Sure this is the Correct Adapter for your Application.
- Plug and Play.
- GM Correct Harness Plug Ends.
Report incorrect product information.
Advanced
Joined: Nov 2016
Posts: 86
Likes: 0
C6 Corvette LS2 to LS3 or LS7 MAF Adapter Harness MAF0009 5 Pin to 5 Pin
by MIDWEST CORVETTE
3.8 out of 5 stars 4 ratings
| 3 answered questions Price: $15.96 & FREE Returns Your cost could be $5.96. Eligible customers get a $10 bonus when reloading $100.
- Premium Made MAF Adapter Harness Allows the 05-07 LS2 Corvettes to Run the Later LS3 and LS7 Air Intake Systems.
- MAF Adapter 5 Pin to 5 Pin.
- This MAF Adapter Harness Will Fit other Vehicles. Please view the Detailed Pictures to be Sure this is the Correct Adapter for your Application.
- Plug and Play.
- GM Correct Harness Plug Ends.
Compare with similar items
New (2) from $14.96 + FREE Shipping
Report incorrect product information.
I did see this, but wasnt sure a C6 LS2 05-07 harness would work on the 01-04 C5 LS6? Will it? That would be perfect.
Last edited by chase1873; Jun 12, 2020 at 09:04 PM.
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Thread Starter
Racer
Joined: Aug 2001
Posts: 277
Likes: 17
From: Smyrna Tn
It does the same thing. However it is a blade style maf maybe 3/8 wide by 2.5 " long inserted into the air intake, thus no air restriction like conventional units contained within a fixed diameter unit. You can put this "Blade" into any size air intake unit. Of course, Tuning is required.
Drifting
Joined: Mar 2018
Posts: 1,362
Likes: 400
From: DFW TX
The LS3/LS7 MAF's IAT sample rate is also much higher so it is quicker to respond. It also doesn't suffer from nearly as much heat soak.
Watching IATs after swapping from a 85mm MAF to LS3 MAF, the temps drop as soon as the car starts to move. Gets back to ambient really quick after sitting at a stoplight.
Watching IATs after swapping from a 85mm MAF to LS3 MAF, the temps drop as soon as the car starts to move. Gets back to ambient really quick after sitting at a stoplight.
Pro
Joined: Mar 2007
Posts: 738
Likes: 226
From: Coast of San Mateo CA
.5 liter/31" All Bore will add 25 -35 RWHP & 20-30 LB' throughout the Whole curve ~2500-6500 RPM 2002-2004 Z06 VS LS3 stock to stock. Changing Cam and Heads can multiply those gains even further.
Bigger Bore opens up many more head options.
Bigger Bore opens up many more head options.
Last edited by Navy Blue 210; Jun 15, 2020 at 02:43 PM.
1st Gear
Joined: Jun 2026
Posts: 1
Likes: 0
LS3 in a 2000
So I was reading through this looking for advice on which long tubes people are running for their LS3 swapped c5s as im in the middle of this project. Does anyone have any advice on this ? Running 832 square port heads. And I know the exaughst side is a little bigger and a wider D shape than the standard LS1 heads. So just wondering if I can find a set of ls3 headers that will not have clearance issues on a c5. I was worried about clearance issues if I just ran c6 headers. Anyone have an answer ?
Thread Starter
Racer
Joined: Aug 2001
Posts: 277
Likes: 17
From: Smyrna Tn
So I was reading through this looking for advice on which long tubes people are running for their LS3 swapped c5s as im in the middle of this project. Does anyone have any advice on this ? Running 832 square port heads. And I know the exaughst side is a little bigger and a wider D shape than the standard LS1 heads. So just wondering if I can find a set of ls3 headers that will not have clearance issues on a c5. I was worried about clearance issues if I just ran c6 headers. Anyone have an answer ?