🔧 Built for heavy-duty use, these high-performance cylinder heads deliver strong low- and midrange response while supporting slightly larger engines.
- Fully assembled with springs and valves
- Designed for '99–'05 engines with a stock crankcase
- Ideal for touring bikes and other heavy vehicles
- Best suited for motors over 103" or those using high-compression pop-up pistons
- Combustion chamber yields a slightly higher than stock, yet manageable, compression ratio in larger-than-stock engines
- Large 2.000" intake and 1.605" exhaust valves maintain port velocity for good low- and midrange response while supplying ample airflow
- High-performance valve springs allow camshafts up to .650" lift
- Intake ports flow 264 CFM compared to stock heads at 182 CFM
- Compatible with stock rocker boxes, exhaust, and intake manifolds
- Includes heads and four long headbolts; reuse four long OEM headbolts
- Made in the USA 🇺🇸
- If aftermarket compression releases are used, corresponding rocker boxes must be employed
🔥 Built for dependable torque and durability, these heads are a practical upgrade when you need improved flow and lift capacity without extreme compression.