Recognize this piston and sleeve?

[RaceMechaniX]

Guys,

Can anyone ID this piston and sleeve? It's an AAC sleeve with a billet piston. Bore is 1.15"(29mm) with 4 transfer ports and one boost port. There are four notches on the top flange for alignment. Sleeve OD is 1.3375"(34mm). The piston looks like a Bouchie piston.

It's not the early CMB 91RS P&S.

 

[Stuart Barr]

Tyler,

I have some 91 RS AAC piston/liners sets. Port configuration is somewhat different and OD of liner is 1.300". It does look like a CMB product. Could it be a 91 or 100?

Stu

 

[RaceMechaniX]

Hello Stu,

I could be an older CMB. I have the newer style 91RS AAC sleeves to compare to and they are different.

-Tyler

 

[Mike Hughes]

I had a Moki 90 with a similiar sleeve back in the mid 90s. I dont have any old ones kicking around to compare to.

Mike

 

[Ian Inverarity]

I think that is a P&L made by Ranjit Phelan (I think thats how its spelt!), probably to suit the old black case gold head CMB Evo. I have a similar P&L for the same era CMB 45 Evo.

 

[Michael Costanzo]

29mm bore is a 101.

 

[PAUL STIRTON]

Ian is 100% correct. I still have a drawer full of them.

 

[RaceMechaniX]

Thanks guys.

Tyler