Skip to main content
English French German Italian Spanish

piston weight

Forums

Does anyone know the weight of a std original Atlas piston?

Permalink

I had to search for a long time to finally find one.

Std size "B" grade 218.5 gm, Interesting to discover that the 650 piston I have was heavier...

Same size stock commando is 236 gms

Thank you David, I had the thought it would be you who would come up with the goods!, that means I have about  36 grammes of unwanted  and unbalanced weight  bouncing around in the Old Atlas. No wonder its such a viby beast. At least the girls liked the pillion position!!.That's a lot of metal to carve off. Does that include rings ,pins and clips?,or bare piston?.

Permalink

The pin only is 68.1 gm. don't have the clips # handy 

rings w/3 piece oil   18.7 gm

Some hot rod high compression 750 pistons 250-260 gms bare

 

 


Norton Owners Club Website by 2Toucans