Actually if i recall j-rho discussed the possibility of an LS in a 240 doing quite well i cant remember in which class of autox i dont think it was for sm2… i think xp… uhm… cant really remember (as certain classes restrict engine swaps to only original manufacturer so dont take my word for that…).
You want that instant response and low end torque in autox of that sorts… you want high rpm power on a road racing course. Hence why even a no low end motor like an SR can do well in road racing but is unheard of and shit in autox.
You serisoulsy don’t do much research do you? There are PLENTY or SR’d cars in auto-x. And they do quite well.
If you want “instant torque and low redline” in auto-x. Explain why there are SO MANY dam Hondas in auto-x events. And they tend to kick ass. My friend/co-worker organizes all the TLMC Auto-x events in Barrie. He drives a Honda and so do 90% of the drivers.
Also if your pockets are deep an LS can be made to rev to 8k rpm… but whoopie do. We’re talking as if the regular S chassis owner, more so regular son240 member would ever even bother considering such a thing much less the swap itself.
I’m sure if you’re already doing an LSx swap. You have a decent amount of moeny to throw around. And, if you know how to spend money wisely, and build your car in an intelligent manner, you don’t need a big budget and it won’t cost you a down payment on a house. You don’t need a ton of money for this swap. I could have spent the same amount of money on an SR with the money spent on the LS2.“Whoopie do”, about V8 revving to 8K+? You joking? That car would have low-end, mids, and top end.
The debate j-rho had was to use a VQ or go kat, due to more abundant and instant torque versus spending gajilions on a lightened stroked 2.4liter SR which would cost say 10,000 to build and then break.
And I meant to say at least as light as a KA, i stand corrected 
However those weights, honestly, have been floating all over the internet, and none have been really consistent, regardless of scales… what is known, is that the center of gravity is lower it being a pushrod… and… most of the new found weight is in the much larger 6spd tranny. Do a good enough job of swapping it and it’ll be a 50:50 split… yep. Everything takes money.
Ugh… you still didn’t read what I said did you? The rod, crank, and pistons, are still going to weigh almost double that of the KA. It won’t be ANYWHERE Near the weight of a KA. The whole" LSx is lighter than the KA" has been floating around. And the people got that info from GM. Where they list the engine as a low weight. However, the weight listed was for a long block. No tranny. No accessories.
The link I posted used to have detailed pics of everything being weighed. The info in that link is as accurate as can be without weighing your own engine.
Doing a good enough job (To get a 50/50) requires cutting the firewall and tranny tuennl. Most people aren’t willing to do that.
I guess im misinformed from silviav8forums.com then, the weight difference is negligable in the end if you make it as far back and low as possible, alongside frp bits here and there. Then again how many son240 owners really know beyond rust buckets… count on one hand how many people actually track or own a built car.
The weight difference is in the link I posted. I’m sure you can count on MANY hands how many people track their built cars. hence everyone being against street racing and tell everyone to go to the track. Plus, all the track days. I guess no one goes to them.
So in the end? I doubt any one of you will actually do one anyways except shit talk. Go www.silviav8forums.com thats where i get my info.