1996 ImpalaSS WX3
Why would an LS2 or LS3 be preferable to a 97-04 LS1 Engine ?
Full 5.7 Displacement...
Full 5.7 Displacement...
Well the trend is to LS it! I think I've even seen a T-shirt saying that somewhere.
While that's not my favorite option, I'm a glutton for old-school (punishment) and would rather rebuild a LT1 or even a pre-LS Vortec SBC into a 383 than drop an LS into it. The problem is that depending on your regional knowledge base, the old school engines are 25+ years old. LT1s were always stepchildren and oddly seemed difficult for the even-older school guys to wrap their heads around when they were new. Whereas you can find LS knowledge everywhere. Once the LS came out, most people never looked back. Just go to any local race track and get to know people. Granted in most ways, the LS is a superior platform. But I personally just like old school... the caveat is finding the local resources (ie: machine shops, builders, etc) to support old school stuff.
That said, in this day and age and proliferation of parts and knowledge regarding the LS platform, that can be one of the cheapest solutions, especially if you don't want to build it, but rather just swap it. For swapping, well, don't forget truck engines, you can get those on the cheap everywhere... and for a little more, build them up without needing to source a real LS2/LS3.
Here's a good resource for that...
So, you’re heading to the junkyard to see what LS engines are available for your next project? Here’s a handy guide that links specific GM vehicles to the LS-series engine …www.onallcylinders.com
Thank you 95Wagon for the explanation of the LS platform steps in advanced design.In NA alloy, while the LS1 is a great engine, with a couple exceptions, higher the LS "number" the more basic power and the potential for power. Unfortunatly the price goes up too..
The small bore LS1 limits valve size.
As in you can't put LS3 heads on it like you can with the LS2.
That said you can make pretty big power out if a cathedral port LS
The bigger 6.2 LS3 , they make 370-380 at the wheels BONE STOCK³
Unfortunately for kalephonyans, the only 5.7L blocks are LS1 and LS6. If the casting numbers do not correspond to either an LS1 or LS6 block, there's gonna be problems.Why would an LS2 or LS3 be preferable to a 97-04 LS1 Engine?
Full 5.7 Displacement …
Man.....you could put a 427ci LS engine in your car and an inspector would never know..….Any engine I might consider for a CA legal swap has to be of the same displacement as the stock engine or less.......