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RIVA Yamaha Girdled Head Hardware Kit
RIVA Girdled Head Hardware Kit
Our Price: $164.80

Optional girdled hardware kit prevents cylinder cracking by clamping cylinder between head and cases.
YAM. GP1200R/1300R/XLL/XLT1200 GIRDLE HARDWARE KIT
Our Price: $164.80

GP1200R/XLT1200 HEAD KIT 37cc (girdle kit optional #412-12000)
Our Price: $386.10

R&D XLT1200 HEAD KIT
R&D GP1200R | XLT1200 HEAD KIT 41cc
Our Price: $386.10

The Performance Head from R&D will get your GPR motor running. This affordable precision cast design delivers all the performance of billet without the staggering price tag.
Raising the OEM compression ratio boosts the horsepower and torque throughout the rpm range, increasing acceleration and speed.
Available in 41cc and 37cc ranges and comes with all hardware.

Girdle kit hardware sold separate.
(R&D Girdle Kit Optional #412-12000)
XLT Performance Cylinder Head
RIVA XLT Performance Cylinder Head Kit (66V)
Our Price: $424.95

Precisely machined pump gas combustion chambers are designed to produce 145-150 LBS compression (valves down) at sea level elevation, significantly boosting motors performance and throttle response.
Optional girdled hardware kit prevents cylinder cracking by clamping cylinder between head and cases.
Utilizes OEM head gasket and is powder-coated to prevent corrosion.
Includes all necessary hardware and installation instructions.

Note: Girdled Hardware Kit Sold Seperately
GP1200R/XLT1200 BILLET HEAD W/GIRDLE KIT (28.5cc FLAT TOP PISTON DESIGN)
Our Price: $675.88