New G3 Hemi Block...

Gen III parts are also fairly affordable if you shop around. I picked up a new 6.1 block, forged 6.1 crank and CNC ported heads for $1800 for my 71 demon project.

LA vs Gen III is no contest from a power and efficiency standpoint. My cammed 6.1 SRT charger has embarrassed more than a few local 408’s (and a few big blocks) that were reported as producing over 500 horsepower.

Having owned LA’s, RB’s and Gen III’s (5.7, 6.1, 6.4 and 6.2) and dealing with Bay Area traffic I’d much rather be driving a 500 HP Gen III vs an alleged 500 HP LA.

Let’s be honest, technology and machining processes have improved a bunch over the last 50+ Years.