Yamaha 50 High Compression Billet Head Kit CR500 Select your desired colour and

Select your desired colour and either 8mm or 10mm mounting holes to suit your year model Tohatsu engine

Fits: Yamaha 30

TSR Yamaha 70 High Compression Billet Engine Head Kit

with the squish clearance being tighter than stock and designed to be more detonation resistant with overall improved power through the whole rev range with multiple dome sizes to choose from to suit both pump and race gas applications

Please check your existing dome size before ordering

Yamaha 50 High Compression Billet Head Kit CR500 Select your desired colour andTSR Yamaha 50 Billet Engine Head Kit best bolt on mod you can do or your outboard Our billet head kit has increase cooling volume and improved heat dissipation, with the squish clearance being tighter than stock and designed to be more detonation resistant with overall improved power through the whole rev range with multiple dome sizes to choose from to suit both pump and race gas applications This is a direct bolt on kit with no other mods required.