you have to be kidding, theres no way you are going to fit a turbo lsx in there any easier than a 351w....oh, and unless you are shooting for more than 600HP, theres no reason to replace anything other than pistons in a 351w, maybe rods, as for the rest of the engine....in a turbo application stock is fine, up to 600HP anyway, possibly more....I learned my lesson in wasting money in turbo builds with the 4 2.4L neon engines I built, throwing money at head work is a lot less effective than throwing money at the block to take more boost, and if you think you are going to get away with a oil feed/return for $50 that doesn't leak you're smoking crack...another area I have planty of experience....the only thing that ever worked right for me was SS lines and an aluminum oil pan with the return WELDED in. that being said, in all honesty carbs and turbo just dont go together for best efficiency...stay EFI, you get so much better control...take the $400 from the carb and spend it on Megasquirt....a v3.0 board with a MSII chip would be ideal, you are also forgetting the cost of wideband ($250 for the AEM unit, it works awesomely and comes convienently packaged in a gauge) so again....you aren't getting it done any cheaper,1/4" is just not any more room to run stuff...that only translates into 1/8" per side. there's a ton of stuff you just don't need to do if you are going turbo as far as engine prep....my suggestions on engine prep whether its an lsx or a 351w would be, rebuilt, forged pistons and rods....good head gaskets...and that's it, the turbo will take care of the rest...take my advice here...I wasted so much money on stupid things on my first 2.4L turbo build....porting, polishing, stainless valves, 3 angle valve jobs, cams, etc etc, it was stupid....later engines of mine made a lot more power with a ton less invested...the main reason being that the first engine I built had pretty primitive fuel controls(like a carb as a matter of fact, same basic idea) spend the money where it will actually have an effect...EFI and more boost, I do approve of the mII front suspension though, it makes it so much easier for turbo, my 4.6L will eventually be turbo...low boost,stock internals, aiming for something like 450HP, however I've decided that can come later, I have enough challenges getting it in and running
