Designing a 650-750 HP LS motor

[OVRKILL]

Originally Posted by 67ragtp

Chris,

No doubt boost will get you there, but how about a 460-500 inch N/A LS, block prepped by RHS or RED. Callies/Weisco internals, Big LS7 black label heads or WCCH. FAST intake/102mm throttlebody. Cammed approprietly should do 650 rear wheel no problem and drive nice.

Look at Rupp's build, he drives his with out issues, dont know if he ever changed his throttlebody but it should be in the 650+ range.

Rich

x2....

To the OP.....I preferred the cube route I went this direction, RHS, 460, bigger heads and an intake that didnt choke off all those cubes as the FAST would. Internal goodies include Lunati crank, Callies rods, JE pistons.... Cam shaft is TBD as we are still in the dyno phase and have a few to choose from. Final power numbers will be somewhere in the mid 800s and all under 7k in a M6 4th gen. (Its pretty too! )

Boost is a nice option as well. Nice forged/sleeved LS2 with a TVS2300 or Kennebell power is there all day long.

Going back to N/A for a minute, my builder (Virginia Speed), recently put together a "conservative" LS2 440 that made just over 700fwhp topped with a FAST and multiple 427ci easily making 650ish without any effort. Add a Marcella on any of those combos and