no kidding? the only variant i can think of would be a short or pilot shaft but all I've seen is the pilot shaft motors. i thought maybe they gave up on producing the short shaft motors. is the difference you have found between them just the letter 'p' on the end of the part number?
i only have one thing to say about the v-spec and which clutch to use....
WERKS RACING...... THATS ALL YA NEED TO KNOW...CARBON...NOT RULON....
AND ANOTHER WORD...EBAY...CHEAP.....
ok so thats like 25 words....lol....but seriously...on rb or os...or for any 1.8th...go werks racing.....tunability is awsome with no late race fade....
Sorry for all the confusion. My dad wanted a detailed list of what i wanted for christmass. I put a few different things on there. I picked the P5 longstroke rex for the engine. And the clutch zandor reccomended.