The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Would you do it? Rip out a Turbo LS for a Big Block

Joyridin · 06-11-2023, 08:21 AM

I dumped the big block for an LT. Not exactly the same as yours, but the BBC was an overweight behemoth that did nothing but suck a lot of gas and give mediocre hp numbers.

Clean up the engine bay a bit on the engine you have. I am guessing you have an OD transmission, so you should be getting some decent mileage.

The BBC is a slug unless you do a bunch of modifications to make it put out some power, but then you are getting 6-10 mpg on premium. If your truck is a show truck, then maybe that is the way to go. For a driver though, the LS has it in every way, shape, and form.

06-11-2023, 08:21 AM	#12
Joyridin Registered User Join Date: Sep 2020 Location: Cleveland, Ohio Posts: 577	Re: Would you do it? Rip out a Turbo LS for a Big Block I dumped the big block for an LT. Not exactly the same as yours, but the BBC was an overweight behemoth that did nothing but suck a lot of gas and give mediocre hp numbers. Clean up the engine bay a bit on the engine you have. I am guessing you have an OD transmission, so you should be getting some decent mileage. The BBC is a slug unless you do a bunch of modifications to make it put out some power, but then you are getting 6-10 mpg on premium. If your truck is a show truck, then maybe that is the way to go. For a driver though, the LS has it in every way, shape, and form.