273 Commando Piston Dome Volume
My mechanic as pretty switched on so can work it out. RC said they made them from factory 273 Commando pistons so was curious as to what the factory specs were. I did read on a thread somewhere that a guy did cc the pistons I have and they came in at 11.5.
Yep, closed chamber heads. It’s a 1965 Australian built AP6 4PV factory V8 car. We missed out on the 4bbl Commando version here in Australia so am building it to as close a spec as I can. I have an Edelbrock LD4B, Edelbrock 500cfm 4bbl Thunder Series carby, and have had my cam reground to a similar grind, bit more duration. Components are going away to be balanced this week then a dummy assembly to chase around 10.2-1. I’ll attach a photo of the car and a photo of the cam specs.
My mechanic as pretty switched on so can work it out. RC said they made them from factory 273 Commando pistons so was curious as to what the factory specs were. I did read on a thread somewhere that a guy did cc the pistons I have and they came in at 11.5.
Yep, closed chamber heads. It’s a 1965 Australian built AP6 4PV factory V8 car. We missed out on the 4bbl Commando version here in Australia so am building it to as close a spec as I can. I have an Edelbrock LD4B, Edelbrock 500cfm 4bbl Thunder Series carby, and have had my cam reground to a similar grind, bit more duration. Components are going away to be balanced this week then a dummy assembly to chase around 10.2-1. I’ll attach a photo of the car and a photo of the cam specs.
