US$ 151.95
Pay in 4 interest-free payments of $25.00 Learn more
8cc (105+ octane)
part numbers from HotRods are 4166(2006-2021) and 4116 (1991-2005)
72mm chamber Does not fit Athena
Improved flow
and red will restock mid 2023
Honda CR500 Phathead Combustion chambers YZ250 8cc (105+ octane)Chamber selection: HN50 66. 4 Stock compressionHN51 64. 4cc (95+ octane)HN52 62. 5cc (100+ octane)HN53 60. 8cc (110+ octane)
US$ 151.95
US$ 60.00
US$ 142.50
US$ 30.00
US$ 59.95