im swapping out my 350 for a 5.3 vortec and was wonderin if anyone has done this and can help me with some questions i have. i hav a 420 tranny so what fly wheel and clutch so i get?

im swapping out my 350 for a 5.3 vortec and was wonderin if anyone has done this and can help me with some questions i have. i hav a 420 tranny so what fly wheel and clutch so i get?Been done lots of times! But the transmission my be a problem. Might look at a NV3500 or NV4500 as they came stock behind some LSx truck motors.

thanks but not looking to cant the tranny out.

You might be able to use the Gen III NV3500 flywheel and a hybrid clutch for the 420. Not sure on the sizes of the NV3500 or 4500 clutches. The LS1 flywheel might be an option as well.

Good luck!

i cant find a flywheel anywhere in the sacramento area! this sucks!

I have used old manual trans and ls type engines. You will need the flywheel/clutch and pilot bearing assembly for a 6.0 2500/3500 truck with manual trans. It places the flywheel surface .400 back to be in the same place as the traditional chevy engines. If you need, I will find the part number for the flywheel. These aren't very expensive from GM.

ya that would help me alot thanks