Woo! First Post!

OK, so I'm looking to start gathering info for a street & strip build on my '99 Silverado 1500. I currently have the 4.8 in it for a motor, but want to go bigger. I've seen swaps for the 5.3 done, but wanted to know what else will fit under the hood. 5.7, 6.0, or maybe even a big block 427 or a 454.

 

Any of the GENIII engines will easily work...you could take a 6.0 and stroke it to 408ish...

 

 

like mentioned any genIII motors

 

So the LS motors will bolt right up with the correct wiring harness. Say I wanted to to go big block, like one of the ZZ454 crate motors. What would I need to get it running properly in my truck?

 

why would u wanna go with a bbc?

 

Alot of power can be made with the 6.0 LQ9 without spending a ton of money.

 

you defiantely don't wanna go bbc go to junk yard and get you a 6.0 be it lq4 out of 2500 hd or lq9 out of a escalade or yukon and be done with it no need to buy a wiring harness direct bolt in.

 

LS motor will drop right in and you can reuse the truck's harness, PCM, etc. BBC will require some fab work, such as motor mounts, tranny crossmember, driveshaft length, etc. You'll also need a different harness and PCM. It's alot of work, but I'll bet it can be done. One of our members here swapped a SBC in to replace his 4.3 in his NBS truck, there's a thread about it in the Projects section.

*EDIT* Almost forgot....Welcome to PT.net!

 

Ok then, that answers a few questions. Thanks!

I'm just trying to find out what engines will fit. I've worked with a lot of the old chevy SB motors before, muscle cars, old pickups and the like, but the newer LS and LQ motors and their applications kind of have me in a tail spin.

I guess my next questions would be these: 1) Will any of the LS motors fit? and 2) What's the difference between the LS and LQ motors?

So far I've read that the LQ4 is better for adding a supercharger to because of the lower compression. Any truth to that, or is the LQ9 still the better motor?