Alpine White said

Hey Guys,

I’ve recently purchased a new set of Rebuilders Choice 4bbl Commando Pistons and need the dome volume in cc’s to calculate my CR. I’ve contacted Rebuilders Choice but they are unable to provide the information but said they made them from factory 273 Commando Pistons.

I’ve attached a photo of my one of my new pistons and a photo I found on the net of an original Commando piston.

Any help would be greatly appreciated.

Cheers guys

Luke

View attachment 1715207343

View attachment 1715207344

View attachment 1715207345

View attachment 1715207346

Click to expand...

yellow rose said

The only way I know to know for sure is to do the .500 downfill and then you'll know for sure what you have. I do have an old DC manual around here somewhere. I'll dig it out and see what I can find.

Click to expand...