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Old 11-05-2010, 05:26 PM
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Default RE: new motor for my Revo (5309)

I would go with an .18tm. From what I have seen they are just as good as the .21tms. If price is a factor you could probably get an .18tm cheaper than a .21. They are pretty much the same. Not really a fan of big block conversions. Stick with os though, they make good engines.