Hi I have a 2002 Blazer ls 4x4 I just had my transmission rebuilt to stock specs I just revealed and replaced my output shaft rear bearing after bad u joint destroyed t case adapter I serviced both rear and front difficulty put new front cvs in just cuz its already on stands I just got a brand new 4.8 cathedral port long block what flywheel and bushing do I need to mate the torque converter to the new motor and what part off the 4.3 can I use ? As In sensors serpentine drive etc please let me know asap

 

https://www.speedwaymotors.com/LS1-L...ate,60449.html

Very little if anything from the 4.3 will work on the LS. Better find a donor vehicle.