Platinum Racing Products - Crankshaft Single Keyway Upgrade to suit RB20 / RB25 / RB25NEO / RB26 / RB30
*RB crankshaft single keyway, recommended for OEM crank shafts with some modification*
OEM crank key grooves are known for softness and the "D" type keys pose a problem as they are not large enough by design, this in turn damages and wears out the keyway grooves along the crankshaft prematurely.
The PRP Single Crank Keyway is the perfect solution to this problem and is the perfect upgrade item for the Nissan double keyways, a must have for any engine build!