Originally Posted by Boomstriker

Yup planenutzz... it's a crrc 40. Too bad I had to take it apart to measure piston before I searched 'CRRC'
Didn't seem to rev very high so never put a tach on it. Gettin 8600rpm w/ 17x8 APC so way under propped. Got a 19x6 comming. Should perform better with that.
Anyone know whos' jug/piston is used on this size?? Doesn't look like Echo or Sachs.
Thanks all!!!