dynamite
#1
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Joined: Jul 2004
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From: Phoenix, AZ
I was wondering which one of the .12 engines would fit in an hpi rs4 rtr 3 because they have like universal cranks, rc10gt cranks and other stuff so which one would fit. thanks
#2
Senior Member
I you are replacing the original .15 Fe engine, then you need the .12 engine with a "standard" crankshaft (short, threaded all the way along)



