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FZR High Performance 10.5-1 Forged Piston Kit (4 Piston Kit)
FZR High Performance 10.5-1 Forged Piston Kit (4 Piston Kit)
Our Price: $723.40

R&D Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain maximum horsepower and reliability from their racing engines. R&D offers high quality forged aluminum, heat treated, and CNC machined racing pistons in stock 8.6-1 or 9.5-1 compression ratios to replace O.E.M. cast aluminum pistons known to break, crack, or shatter in high performance, high heat conditions. High horsepower marine engines with high boost pressures are more prone to have detonation over conventional racing engines due to sustained loads. Forged pistons in marine applications are a must. What ever performance platform you are planning to build, trust the pros at R&D with all your compression ratio, boost, and engine management needs or questions.

R&D recommends upgrading to our High Performance Pistons and Rods in applications producing over 300 H.P. @ sustained RPM's 8,000+.
FZR High Performance 9.5-1 Forged Piston Kit (4 Piston Kit)
FZR High Performance 9.5-1 Forged Piston Kit (4 Piston Kit)
Our Price: $723.40

R&D Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain maximum horsepower and reliability from their racing engines. R&D offers high quality forged aluminum, heat treated, and CNC machined racing pistons in stock 8.6-1 or 9.5-1 compression ratios to replace O.E.M. cast aluminum pistons known to break, crack, or shatter in high performance, high heat conditions. High horsepower marine engines with high boost pressures are more prone to have detonation over conventional racing engines due to sustained loads. Forged pistons in marine applications are a must. What ever performance platform you are planning to build, trust the pros at R&D with all your compression ratio, boost, and engine management needs or questions.

R&D recommends upgrading to our High Performance Pistons and Rods in applications producing over 300 H.P. @ sustained RPM's 8,000+.
FZR High Performance 8.6-1 Forged Piston Kit (4 Piston Kit)
FZR High Performance 8.6-1 Forged Piston Kit (4 Piston Kit)
Our Price: $723.40

R&D Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain maximum horsepower and reliability from their racing engines. R&D offers high quality forged aluminum, heat treated, and CNC machined racing pistons in stock 8.6-1 or 9.5-1 compression ratios to replace O.E.M. cast aluminum pistons known to break, crack, or shatter in high performance, high heat conditions. High horsepower marine engines with high boost pressures are more prone to have detonation over conventional racing engines due to sustained loads. Forged pistons in marine applications are a must. What ever performance platform you are planning to build, trust the pros at R&D with all your compression ratio, boost, and engine management needs or questions.

R&D recommends upgrading to our High Performance Pistons and Rods in applications producing over 300 H.P. @ sustained RPM's 8,000+.
FZR Racing Pistons
RIVA Pro-Series 4-Stroke Yamaha Racing Pistons FX SHO FZR FZS
Our Price: $239.95

Yamaha High Performance Racing Pistons
 
Riva forged racing pistons deliver maximum reliability and performance in high boost & turbo applications. High strength piston kits include premium ring package, tool steel wrist pin & carbon steel wire locks.
 
Key Benefits Include:
8.6:1 compression ratio.
CNC machined from high strength/lightweight forgings.
Optimized dome design for efficient combustion.
Improved lubrication hole placement for reduced friction.
Premium low friction ring package.
High-strength tool steel wrist pins machined from special tool steel bar stock & heat treated.
Carbon steel wire locks.
IJSBA/APBA Stock Class Legal.
 
Fits Models FX SHO FZR FZS
86.5mm BIG BORE PISTON KIT (799cc)(race legal)
86.5mm BIG BORE PISTON KIT (799cc)(race legal)
Our Price: $173.93

86mm BIG BORE PISTON KIT (790cc)
86mm BIG BORE PISTON KIT (790cc)
Our Price: $173.93

85mm PISTON KIT (772cc)
85mm PISTON KIT (772cc)
Our Price: $173.93