Hi rev kit for Vanguard  V-twins. allows operation above 4200 RPM without the fear of "Valve Float" Kit  Includes Timing advance key. Fits 12.5,14,16,18,21and 23HP engines. Looking to add some top end to your big blocked golf cart? The hi rev kit will deliver it. Easy to install and allows operation up to 5500 RPM.

• Alloy Steel Pushrods
• 30 Degree Timing key
• Billet Spring Retainers
• Valve Spring shims