LS1 in a C3
New flywheel
Cut crossmember
Tach convertor
Extend PS ram 1"
Cut front coils springs
Electric fan
Misc. hoses
Electric fuel pump
That's about it. You may run into some linkage issues with the 4 speed. I would do alot of measuring first to make sure the trans is in the existing location.
New flywheel- Okay that's good to know.
Cut crossmember- No problemo! I was going to modify mine anyway. I liked an example of someone else's tubular crossmember I've seen on the forum. I want to tuck mine above the exhaust pipes.
Tach converter- What if I get Autometer gauges like I was planning to do anyway? Would they work better with the newer style engine?
Extend power steering ram- Another worthy note, thanks.
Cut front coil springs- I figure this is because the LS1 is lighter than the older Gen I & II blocks, correct?
Electric fan- Aluminum radiator and electric fans are in my plans even with my 383 idea.
Miscellaneous hoses- Check.
Electric fuel pump- Does this still remain true if I were to carburete the LS1?
PCM
front accessories (for $1500 you're probably only going to get the longblock)
misc bolts and things can add up as well
And by front accessories, I trust you mean: alternator, etc...
Alternator, water pump, power steering pump, A/C (if required), and the tensioner.
If you get electric gauges then you won't need any type of converter.









