Tomei VALVE GUIDE SET For SILVIA S14 S15 SR 163049 THROTTLE/INTAKE/EXHAUST The Competition Bearing Series are

The Competition Bearing Series are designed with an increased crush (i

When the rod halves are drawn together

5 SNCM439 Compression Ration Specs

coolant and oil seals are all sealed well with the bead confifuration

Tomei VALVE GUIDE SET For SILVIA S14 S15 SR 163049 THROTTLE/INTAKE/EXHAUST The Competition Bearing Series areWe chose to use Phosphor Bronze (Cn Sn P alloy) to make our Valve Guides, for its highly tensile and superior heat transferring ability, which is vital in high power and high RPM outputting engines. Since race engines these days require more power at higher RPM use , these engines now experience more extreme heat conditions. These conditions will increase the deterioration rate on these valve train related components. The Phosphor Bronze material has