Stage 4 Hop Up Kit for 460cc 10-Bolt 92mm EnginesThis kit is similar to our Stage 3 kit for 13/15HP engines, but is tailored to a 92mm bore and adds a ported and milled head with stainless valves, ARP heavy duty stud kit, and heavy duty valve train components. Allows up to 40+ HP depending on options selected.Kit Includes:- Fully Ported and Milled Race Head (High-RPM Genuine Honda Large Port Core)
- High-Flow 40mm / 32mm Valves with Lash Caps
- Dual Springs with Titanium Retainers
- 307 Race Cam
- Black Venom Aluminum Roller Rockers
- Valve Cover Spacer
- Chrome Moly Pushrods
- Choice of Carbs (Or use your own)
- 92mm Forged Flat-Top Piston with Rings
- Billet Rod
- Offset Timing Key
- Carb, Insulator, Head, and Case Gaskets
- ARP Bolt Kit
- Choice of Flywheel (Or use your own)
*Note: This kit only fits
460cc non-hemi 10-Bolt blocks. Kit is made to be used with a
69mm stroke crankshaft.
*Filter should be sprayed with K&N type oil, especially in dirt applications. Oil not included -
click here. Billet aluminum flywheel REQUIRED. These kits are intended for experienced engine builders. Some clearancing, fitment, or other engine building "tricks" may be needed. Picture for reference only. See above description for actual content.
Due to the head work required for this kit, please allow 1 week to ship. 
