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Old 12-06-2009, 01:29 AM
bseelbach bseelbach is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: USA
Posts: 136
Default Re: Do slant heads really make a difference in power?

I put a Zoom aftermarket slant head on a Grubee 66cc. I wanted to see a performance difference based on all of the hype but to me it is the same. The slant might be a bit quieter but it could just be me. I never changed back because frankly I'm lazy.

I've never taken the time to really compare volume of the combustion area but plenty claim the slant have more compression. Personally I think that the "perceived" performance increase is really attributed to the maintenance factor of changing the heads...New head gasket, proper torque on all bolts.

I'm sure this will rile some but its not my intention, just my peronal observation and thoughts.
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