derbi variant metrakit 47mm head
derbi variant metrakit 47mm head
 



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derbi variant metrakit 47mm 74cc hi comp head with decompression hole

use ES long thread plug

taco rating taco rating 4.5 of 5 4.5 of 5 Total Reviews: 3 give your taco rating here

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5 of 5 Easy to adapt for hobbit September 25, 2016
taco eater : Chris Toth from Atlanta, GA United States  
A few minutes of hand filing on each stud hole, fits on no problem, brought head temps down 50 degrees.

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5 of 5 This is the monster that will tame the hobbit June 24, 2014
taco eater : marc friedman from davis, CA United States  
Dragon breathe. This is what ya need to try a air cooled solution to hobbit heat soaking. The head is just the start as complex machining to not just the squish , but the decomp path at the head gasket and the stud hole allignment. But if this don't do do it nothin but a radiator will.

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4 of 5 decent April 26, 2012
taco eater : Ryan Nash from Columbia, MO United States  
you should probably adjust the squish on this head because it's pretty funky... just look at it.

otherwise it's a decent head.  the casting isn't the best (and you will see once you get it in your hands).  i've had 3 of these and each one has had casting flaws where you put the decomp valve in the hole... just get out a file and you're good.  otherwise the valve won't seat properly.

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