01-26-2007, 02:04 PM
Is the OS Speed basically the factory version of the JP Modded V-Spec??
Internally everything seems the same... the hardcoated crank, backplate, epoxy filled, ported, etc. (the only thing I noticed different was the balancing slugs) Mag head & alum. carb insert are the external differences....
Internally everything seems the same... the hardcoated crank, backplate, epoxy filled, ported, etc. (the only thing I noticed different was the balancing slugs) Mag head & alum. carb insert are the external differences....