Caprice Models

[FreshBubble]

I was at a auto parts store, and they were asking the make and model of my car. They had a Caprice, Caprice Classic, and a Caprice Classic LS. What is the difference between a Classic and a Classic LS?

Also, do yall think I could make a 4.3 run just as fast as a stock 5.7 with some modifications? Or should I just go ahead and buy a 5.7 and swap the motors?

[Blue Bowtie]

#1. Trim levels.

#2. Not without some form of boost - Blower, turbo, ectectera. 85 cubic inches is a lot to make up in simple refinements. 1 HP per CI is fairly respectable for an N/A engine. 2 HP per CI is resonable for a boosted engine. By that crude math, without a means of blowing through the intake, making much over 270HP with the L99 would be a real chore. The iron-headed LT1 is already making 260HP in stock form, with a tame cam and poor intake/exhaust tracts. And highway fuel mileage is the same for both engines. A little work on the iron-head LT1 and it makes 300 HP very easily. More serious work gets you 360-ish without too much stress.

#2A. As fast as a stock 5.7? The speed limits in most places are either 65 or 70 MPH. Either car can do it easily, so I suppose they are just as fast as each other.

[FreshBubble]

Oh I knew what else I wanted to ask. Someone I know has a super charger for a Buick somewhere near the year of my car I think. Just out of curiousity, would I be able to make that work for my car? or no?

[Blue Bowtie]

Not without more fabrication, welding, filling, and machining than it would be worth. That blower is designed to make pressure into a 231 CID engine. It may have trouble maintaining even 1 BAR on a 350 CID engine without seriously overspeeding the blower rotors.

That doesn't even address the need for a 2 BAR MAP, PCM reprogramming, different injectors, the forged internals, and everything else required to manage the boost.

[FreshBubble]

Well, is there any super chargers that I could get for my car? Or no?