Yamaha Raptor 660 660R Kibblewhite ARP Style Heavy Duty Cylinder Head Studs Kit Sportsman 1000 designed for high-horsepower

designed for high-horsepower

5mm big bore cylinders

Rolled threads manufacturing process

Improved engine performance with smoother crankshaft operation

YAMAHA YFM250 MOTO-4

Yamaha Raptor 660 660R Kibblewhite ARP Style Heavy Duty Cylinder Head Studs Kit Sportsman 1000 designed for high-horsepowerBrand New Kibblewhite Extreme Heavy Duty Cylinder Head Stud Kit Yamaha Raptor 660 & 660R Years 2001 2002 2003 2004 2005 Nuts are machined from billet high tensile steel and heat treated Studs are heat treated 180,000 PSI aircraft alloy steel Both nut and stud have rolled threads for the strongest possible threads Both nut and stud are black oxide treated for enhanced corrosion resistance KPMI Cylinder Head Studs are made from 180,000 psi yield