2003 silverado
^^^ I don't believe that is correct sir.
The V6 trucks use the Gen I style transmission / block spacing so you will need the adapter from GMPP and 6 new longer flexplate bolts. Your LS1 PCM will control the transmission just the same as a V8 model - if it was an auto car and came with the wiring / programming.
The V6 trucks use the Gen I style transmission / block spacing so you will need the adapter from GMPP and 6 new longer flexplate bolts. Your LS1 PCM will control the transmission just the same as a V8 model - if it was an auto car and came with the wiring / programming.
Last edited by gofastwclass; Jan 20, 2010 at 12:10 PM.
Trending Topics
All 4.3 V6 engines use the Gen I / II architecture and thus have the incorrect depth at the crank flange in relation to the back of the block where the bell housing bolts to. The difference is .400" and GM makes an adapter just for this situation. This also means the torque converter and transmission need to stay together and you would use a Gen III dished flexplate with the adapter behind it. I've been told without this adapter you will destroy the front pump of the transmission in a matter of minutes or miles, but I can't verify that. I'm sure Vince @ FLT could give you the lowdown on that last bit. For the price of the adapter and proper bolts from GMPP, the $65 is worth not having to take the transmission out - regardless of why.
The adapter.
Installed.
Now here is where things get tricky because there always seems to be an exception... Certain early 6.0 liter engines (I believe only the iron head ones, but can't verify) have a longer crank that protrudes from the back of the block like the Gen I / II engines and thus does not need the adapter. These engines also don't use a dished flywheel and are easy to spot since the crank flange is not flush with the back of the block. I've seen pictures but never seen one in person.
The adapter.
Installed.
Now here is where things get tricky because there always seems to be an exception... Certain early 6.0 liter engines (I believe only the iron head ones, but can't verify) have a longer crank that protrudes from the back of the block like the Gen I / II engines and thus does not need the adapter. These engines also don't use a dished flywheel and are easy to spot since the crank flange is not flush with the back of the block. I've seen pictures but never seen one in person.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Thread Starter
Teching In
Joined: Sep 2009
Posts: 39
Likes: 0
From: glass city
thanks that really helped Ok so i think i understand all that i have an ls1 out of a 2002 camaro i have been building and i sold my nova for double what i paid because that where it was suppose to be going into but i picked up this truck for cheap so thought about maybe a budget ss silverado do you know what engines used the dished flexplate or is this an aftermarket part
Ok so i think i understand all that i have an ls1 out of a 2002 camaro i have been building and i sold my nova for double what i paid because that where it was suppose to be going into but i picked up this truck for cheap so thought about maybe a budget ss silverado do you know what engines used the dished flexplate or is this an aftermarket part
Pictured is the factory flexplate for the Gen III (LS) series engines with the standard crank flange. Your Camaro engine would have this if it was an Automatic car. The truck will have a flat flexplate and you will need the V8 Camaro (or V8 truck) flexplate and the adapter and bolts I mentioned. I can give you the PN for the bolts if you are interested, you will need six.
