4.8L LS Swap Mating to NV3500
03-27-2019, 01:28 PM
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4.8L LS Swap Mating to NV3500 I am almost certain this is going to be in the wrong forum but this is my first post on LS1Tech so bare with me. I have an issue I have put an insane amount of time researching and have not come up with an answer.
I have the following: 2000 4.8L engine form a Tahoe (AT Engine), I have a 2000 NV3500 transmission. I know the 99-00 4.8L MT had a different crank than the 99-00 4.8L AT engines per Novak (below).
EngineYearsTransFlangeNotes
4.8 1999-2000 M T 312 casting
4.8 1999-2000 A S 482 casting
4.8 2001+ M & A S 482 casting
M = manual, A = auto, T = tall, S = short
With this in mind I purchased a later model (2002) NFW1050 flywheel so it would fit the short crank (00 AT) and a 2002 clutch kit with pilot bearing. I got a 2000 throwout, I think they are the same less the newer version the line attached which I could not use but correct me if I am wrong.
I then read below and now I am thinking my 02' pilot will not work with my 00' engine, can anyone confirm if the 00' is a 1" or 1.7"? The motor is at a shop about to be swapped (I would have done it myself but I got in trouble when I pulled my 350 out of my truck on the roof of my parking garage) or I could check this but I want to ask as will this whole setup work (pilot, flywheel, clutch, throwout). When I called Novak had no idea what I was talking about but this came right off their website. Thanks for any help.
"In 2001, GM updated their crank bore design on the V8 as well as the V6, eliminating the smaller, ~1" diameter pilot bushing bore (featured on Chevy engines since at least the 1940's) by extending forward the depth of the larger, 1.7" automatic torque converter pilot bore. For this reason, we offer pilot bushings for both the earlier and later style designs and installers of 1997-2000 Gen III engines with manual transmissions will usually choose a Gen I style pilot bushing."
I have the following: 2000 4.8L engine form a Tahoe (AT Engine), I have a 2000 NV3500 transmission. I know the 99-00 4.8L MT had a different crank than the 99-00 4.8L AT engines per Novak (below).
EngineYearsTransFlangeNotes
4.8 1999-2000 M T 312 casting
4.8 1999-2000 A S 482 casting
4.8 2001+ M & A S 482 casting
M = manual, A = auto, T = tall, S = short
With this in mind I purchased a later model (2002) NFW1050 flywheel so it would fit the short crank (00 AT) and a 2002 clutch kit with pilot bearing. I got a 2000 throwout, I think they are the same less the newer version the line attached which I could not use but correct me if I am wrong.
I then read below and now I am thinking my 02' pilot will not work with my 00' engine, can anyone confirm if the 00' is a 1" or 1.7"? The motor is at a shop about to be swapped (I would have done it myself but I got in trouble when I pulled my 350 out of my truck on the roof of my parking garage) or I could check this but I want to ask as will this whole setup work (pilot, flywheel, clutch, throwout). When I called Novak had no idea what I was talking about but this came right off their website. Thanks for any help.
"In 2001, GM updated their crank bore design on the V8 as well as the V6, eliminating the smaller, ~1" diameter pilot bushing bore (featured on Chevy engines since at least the 1940's) by extending forward the depth of the larger, 1.7" automatic torque converter pilot bore. For this reason, we offer pilot bushings for both the earlier and later style designs and installers of 1997-2000 Gen III engines with manual transmissions will usually choose a Gen I style pilot bushing."
