RCMK Twin Cylinder Engine "CLONE"

[Terry Heddin]

So, what's the skinny on the RCMK Twin clones, I see on ebay for under $600?
Good, OK, or Junk?

 

[Ronnie King]

They appear to be copies.

Regards,

Ronnie King
NAMBA #1223

 

[Terry Heddin]

Well, they "are" Chinese.

 

[Dave Gilles]

Got a bunch of the top ends. Havent ran any yet. The stock specs are pretty good. As in they're kinda modded from stock

Ex duration: 180
blowdown: 20
transfer duration: 140
intake: 147

squish is kinda all over the place on them. anywhere from .013" to .020" with a 29mm crank and stock gasket.