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View Full Version : Duncan National head 04-05



JMTracing
10-23-2011, 07:00 PM
I have a complete, ready to bolt on Duncan National race head for a 04-05. DR Porting, SERDI valve seat cut, shortened bronze guides. Works great! Different motor builder for 2012 so Im using a different head. This head is STILL presently on my motor untill the new head gets here, or if its purchased. In that case, head will be removed and shipped SAME DAY with provided tracking GUARANTEED!! Any questions at all, PLEASE ask! $225 shipped anywhere including Canada.

zzzz400
10-24-2011, 07:15 AM
what kind of valves and about how many hrs? What kind of racing

JMTracing
10-24-2011, 07:50 AM
One piece stainless valves installed by DRI, was used for MX racing.. was used this season about the last 5 rounds. Didn't even need shimming

zzzz400
10-24-2011, 09:34 AM
call me 402-616-2487 Jason