Valve Specifications
VALVE SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| B21FT | |||
| Intake | |||
| Head Diameter In. (mm) | 1.732 (44) | ||
| Face Angle | 44.5° | ||
| Seat Angle | 45° | ||
| Seat Width In. (mm) | .051-.075 (1.3-1.9) | ||
| Stem Diameter In. (mm) | .3132-.3138 (7.96-7.97) | ||
| Stem Clearance In. (mm) | .0012-.0024 (.030-.060) | ||
| Valve Lift | n/a | ||
| Exhaust | |||
| Head Diameter In. (mm) | 1.380 (35) | ||
| Face Angle | 44.5° | ||
| Seat Angle | 45° | ||
| Seat Width In. (mm) | .066-.091 (1.7-2.3) | ||
| Stem Diameter In. (mm) | .3128-.3134 (7.94-7.96) | ||
| Stem Clearance In. (mm) | .0024-.0035 (.060-.090) | ||
| Valve Lift | n/a | ||
| B23F | |||
| Intake | |||
| Head Diameter In. (mm) | 1.732 (44) | ||
| Face Angle | 44.5° | ||
| Seat Angle | 45° | ||
| Seat Width In. (mm) | .051-.075 (1.3-1.9) | ||
| Stem Diameter In. (mm) | .3132-.3138 (7.96-7.97) | ||
| Stem Clearance In. (mm) | .0012-.0024 (.030-.060) | ||
| Valve Lift | n/a | ||
| Exhaust | |||
| Head Diameter In. (mm) | 1.380 (35) | ||
| Face Angle | 44.5° | ||
| Seat Angle | 45° | ||
| Seat Width In. (mm) | .066-.091 (1.7-2.3) | ||
| Stem Diameter In. (mm) | .3128-.3134 (7.94-7.96) | ||
| Stem Clearance In. (mm) | .0024-.0035 (.060-.090) | ||
| Valve Lift | n/a | ||