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- An economical alternative to the standard, milled OEM head
- Precision cast with a superior design and outstanding features
- R&D heads raise baseline compression ratio, giving greater overall power and torque
- Made from cast aluminum with improved water jacket areas for better cooling; combustion chambers are CNC-machined for exact chamber volume match-up
- Direct bolt-on replacements with high-temp O-rings mean there are no thin gaskets prone to failure in high-performance applications
- ”B” heads are for upgraded recreational performance and let you run standard 92-octane pump gas while increasing throttle response and reliability
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