Description
S&S Cycle cylinder heads deliver measurable flow improvements that unlock performance gains whether you’re running stock displacement or building toward future upgrades. The fully assembled design with springs and valves gets you on the road faster, while the wide range of compression ratios ensures compatibility with your specific engine configuration. Choose between 79cc and 89cc options to match your motor’s displacement and tuning strategy.
- Fully assembled springs, valves
- 79cc: 1.940″ intake, 1.575″ exhaust
- 89cc: 2.000″ intake, 1.605″ exhaust
- Supports .640″ lift springs
- 79cc suits 88–103″ motors
- 89cc for 103″+ displacement
- Compression release machined
- Four long headbolts included
- Reuses four OEM bolts
- Accepts OEM intake manifolds
- Requires S&S rocker boxes (optional releases)
- Not Twin Cooled compatible
- Made in U.S.A.
- MPN: 900-0349
