Gold Lifetime Member
Join Date: Sep 2007
Location: Scottsbluff, NE
Re: real world LS conversion costs
It really depends on what you get with your motor from the yard. if you can get a complete drop out, it will be less expensive.
In addition to the cost of my motor, which was not a drop out, I have purchased the following:
Dougs headers and adapters, approximately $600
Cam, lifters, springs, approximately $500
I also did a TKO 5 speed complete kit
GMPP front accessory drive kit $550 (alt, PS, No A/C)
I did go carb on mine instead of FI, so I also purchased a manifold ($300), MSD box ($350), fuel pump ($200) and Carb ($400)
I paid to much for my motor, I had planned on just having the heads done and ended up rebuilding the entire bottom end. if I had that purchase to do over again, I would have purchased a higher mileage motor and just planned on rebuilding it.
I know I am not really answering your question, but hopefully this will give you some help.
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5.3L LM7, Carb conversion, TKO 5 speed
It's gonna run this year!