**600hp sbm block limit? Or is it bs!!**
So what was the consensus after all this ?
If you want to be a serious racer you want a 408 that makes less than 550 or go Ritter and be a Superstar Racer!
If you like to cruise your car and talk about your car to all your friends then by all means build a 600+ hp LA. I did back in 2008-9. 408 with a Procharger and a TKO. It made 650 hp and 598 lbft. I fell into the "cruise and look cool" . Believe me, if I EVEN wanted to do that drag racin' non-sense I could have funded a W-something and done real good.
Do what you want with your dollars. Personally, I chose to go with an early casting 360. I chose to do a main girdle, balanced, corrected, forged, big valved, bushed, hyd. rollered, oil work, blah, blah , blah.
You want to take a stock block to high horsepower levels then you have to cross every t. I would love to redo that engine with EFI because the best way to cross that t back then was a blow through. It relies on water/methanol and I would love to make an intercooler fit in front of a 70 'cuda.
Life is what you make it.