C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Engine swap question

Thread Tools
 
Search this Thread
 
Old Jul 7, 2009 | 01:45 AM
  #1  
Lvnspeed's Avatar
Lvnspeed
Thread Starter
Advanced
 
Joined: Feb 2009
Posts: 51
Likes: 0
Default Engine swap question

I have a friend who gernaded a motor on spray....... The question is he found a motor complete with wiring harness and ECU locally but it has a lot less miles on it than his motor. If we install it complete as is will it show the lower miles on the guage in the car?
Reply
Old Jul 7, 2009 | 01:51 AM
  #2  
c5runs's Avatar
c5runs
Instructor
10 Year Member
 
Joined: Sep 2005
Posts: 205
Likes: 0
From: Bay Area CA
Default

the mileage will read whatever it was before. installing a new or used engine will not reset the current mileage in any way.
Reply
Old Jul 7, 2009 | 01:56 AM
  #3  
Lvnspeed's Avatar
Lvnspeed
Thread Starter
Advanced
 
Joined: Feb 2009
Posts: 51
Likes: 0
Default

is the mileage stored in the Motor ECU?
Reply
Old Jul 7, 2009 | 07:19 AM
  #4  
rebelheart's Avatar
rebelheart
Safety Car
 
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
Default

It may well be stored in the ECU but I am not sure either.But why change it? Swap the components that may be different from the bad engine to the new one and leave the ECU alone.
Reply
Old Jul 7, 2009 | 02:24 PM
  #5  
Independent1's Avatar
Independent1
Safety Car
10 Year Member
 
Joined: May 2006
Posts: 3,799
Likes: 1
From: Northern Virginia
St. Jude Donor '08
Default

I would do a little leg work before messing with the odometer reading. Might end up breaking some laws on tampering.
Reply
Old Jul 8, 2009 | 04:15 AM
  #6  
Lvnspeed's Avatar
Lvnspeed
Thread Starter
Advanced
 
Joined: Feb 2009
Posts: 51
Likes: 0
Default

we are not looking to mess with the odometer just coruious.
Reply
Old Jul 8, 2009 | 12:36 PM
  #7  
MattB's Avatar
MattB
Drifting
Supporting Lifetime
10 Year Member
 
Joined: May 2005
Posts: 1,590
Likes: 1
From: Littleton Colorado
Default

No, the odometer is stored in the DIC.

Post up what type of engine and the year/model it came out of and someone here may be able to give specific advice.

In general, you want to keep your stock PCM (ECU) as it works with the BCM for security. If the new engine has modifications to its tune, a tuner can read the tune off of it and just update your PCM with the needed changes.
Reply
Old Jul 8, 2009 | 12:50 PM
  #8  
LoneStarFRC's Avatar
LoneStarFRC
Team Owner
15 Year Member
 
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Default

Originally Posted by MattB
No, the odometer is stored in the DIC.

Post up what type of engine and the year/model it came out of and someone here may be able to give specific advice.

In general, you want to keep your stock PCM (ECU) as it works with the BCM for security. If the new engine has modifications to its tune, a tuner can read the tune off of it and just update your PCM with the needed changes.
The DIC has the mileage, not the PCM. Also need to state what kind of car it's going in too. The OP doesn't even state what kind of car his friend has. Might be an F-Body or even a street rod for all we know.
Reply

Get notified of new replies

To Engine swap question

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo




All times are GMT -4. The time now is 08:15 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE