Hi yall! Newbie ls swapper here. need advice for a ls swap on a 93 tbi 4.3 nv3500

[1991SSP]

I do believe you will need new starter bolts as well.. I have kept both left and right and oxygen sensors on my builds, I kept the MAF as well...I am not sure if you can have the engine programmed without those and the MAF or not... that would be a question for the tuner....

[brianmcb]

You can tune the maf out. It's called a speed density tune. Dont know anything about it lol. My build has front o2 sensors, no rears and a maf. Runs awesome

All.the bolts on the LS engine are metric, make sure to get proper belhousing bolts. 8mm I think?

[westofb]

All.the bolts on the LS engine are metric, make sure to get proper belhousing bolts. 8mm I think?

Actually the bell housing bolts are 10mm 1.50 pitch, just bought some 80mm long to hang engine on stand.