there are a lot of thread on here with info on cost and whats involved with doing an LS swap. The best thing to do would be to do a search and read through those threads first and then ask questions.
The cost can vary a lot depending on what you want and what your goal is. I'm building a LQ4 motor for my 67 and it will end up some where around $13k when I'm done. I also have a 68 Chevy C10 truck that I'm going to drop a 4.8l LS truck motor in from a junkyard with a 4 speed auto and it should only end up about $2500 if that. Also I would go with Fuel injected, you get all the advantages of the LS motors with a very dependable and powerful setup, the FI in not hard to figure out.
So again it really depends on what you want and how much you want to spend.
Figure out your budget
Figure out how much power you want
Plan out the entire system before you buy anything, making sure that every component works together.
Main items to sort out...
There are some awesome guys here that have done these swaps numerous times and I'm sure they will answer all your questions
$5k to $6k plus the cost of the engine and tranny. If you do the work yourself.
The LS3/480 with a TKO600 I just finished was a little over $13k all in with all new parts. The LQ9 4L65E drop out I'm doing now will end up around $10k. The LS7 T56 in my 69 approx $25k with a forged motor and upgrades to the T56.
Not including engine or rebuild...I guess about $2000-$2500 or so.
MSD box ................$325
Motor adapters....... $50
Already had a carb, reused my radiator, reused my alternator, kept my th350 trans.
Now, the heads were $1000, Cam was $400, stock rebuild was $3000ish, rockers for intake side on the LS3 heads another $100 or so, and on and on.
All said and done I'm around $6500-$7500 into it.
All depends on what you have, how much leg work you do, and what deals you find.
Edit: and now a custom built converter :secret: Should really pick up some since the old converter is showing 17-18% slip @ 7000 rpm...new one is under 6% and another 1000 rpm higher stall hehe
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