I’d definitely do the 428 running the correct 670 heads for the right look since you’re trying to replicate a 2+2, nothing worse than having the wrong heads on the engine when you pop the hood if looking for authenticity.
Dished pistons for the right compression ratio so no hassles or additional expenses when filling the tank. Hardened exhaust seats and one piece stainless steel valves for longevity.
As much as I like the 4.00” stock stroke original crank I’d consider slipping in a 4.21” stroke 455 crank. Not really necessary but it would make it a little easier to meet your 450+ HP goal.
__________________
1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
|