RCU Forums - View Single Post - 4.6(.28) vs .21
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Old 10-13-2009 | 06:31 PM
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driller2948
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From: Red Oak, TX
Default RE: 4.6(.28) vs .21

Yes I do believe the motor mount and bolt pattern are the same. I have had both the .28 has more power. The .21 might be a little faster on the top end, not by much. From whati have seen from your videos the .28 would work nicely