CMB .67/80 SLEEVE

[larcor69]

Will a .67 piston /sleeve fit into a .80 block?

 

[Ray Sametz]

Will a .67 piston /sleeve fit into a .80 block?

I gave Nails a 67 CMB in a 80 case, just the wall thickness of the sleeve changes for the 80........

 

[larcor69]

so the case is the same?

 

[Hydro Junkie]

Only difference I can find is one says 67 and the other says 80 on the outside. That may cause problems if someone sees that and accuses you of cheating at a race

 

[larcor69]

dont want or need that, but if it will work i am good

 

[Bert Dygert]

Corey,

The stroke is the same on the 67 and the 80. The crank and the rod are the same. The piston is bigger which thins the walls of the sleeve. The outside diameter of the sleeve is the same for both.

If it's for a scale you may want to have the CD at the race or the scale director check the bore on the sleeve to avoid any issues before racing. It's only (6) screw to avoid any issue.

Bert Dygert

 

[Ray Sametz]

Corey,

The stroke is the same on the 67 and the 80. The crank and the rod are the same. The piston is bigger which thins the walls of the sleeve. The outside diameter of the sleeve is the same for both.

If it's for a scale you may want to have the CD at the race or the scale director check the bore on the sleeve to avoid any issues before racing. It's only (6) screw to avoid any issue.

Bert Dygert

Bingo, give that man a cigar !!!!