I haven't done the math but the ICT Billet brackets that repackage the truck accessories is intriguing to me.
The point of the research to begin with is a friend tried to convince me that I could get an LS in my Regal and driving for about a grand. But short of stealing all the parts, there's no way.
Cheapest LS swap would be to go carbureted and stick with a stock transmission as you reuse most of what you have.
Especially if you want to keep the e-OD trans. Also overlooked are gauges and peripherals aside from the mounts to make it fit. I like the way Motorhead Mike rolls; it's a complete package. You need to know how to tune, and what brings everything together. Anybody can pay to or slap one in, and, yes, it will be a marked improvement over the stock engine, but you're just another sheep in the flock.Going with a carb will cost more than sticking with factory FI parts on an ls.
My problem with the 4L60 through 70E besides the 1-2 gear drop is the 3/4 clutch pack failure. I have seen it first hand. GM has an updated reman that our local trans shop installs. It is cheaper than they can rebuild them and has a 3 year warranty. I believe there was a tab on the issue.The 5.3 with cam and headers and the 4L70E with Circle D converter, Vette servo and Transgo shift kit feel pretty good in my 08 regular cab short bed Sierra. I think it would feel pretty good in a G-Body, which is much lighter than my truck.
I'm not strapping a super charger on a cast internal engine. "I've said it before" (lol) I am not keeping the SBC in this car, I want a modern dependable fuel efficient engine in this car. I need something new, the garage is full of SBC, BBC and BBF, I have already done the EFI on a SBC... TPI, HSR.... I am buying property at lake of the Ozarks in the next few years which is a 6 hour drive for me and I want a fun car I can drive down there at 80 mph and not stop for fuel as often as I do driving my diesel. The hills around the lake are made for a well handling car.
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