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Build your specification using the selectors above. The exact Supertech part number and price update after selection.
| Part number | Valve Size | Groove Type | Material | Valve Set |
|---|---|---|---|---|
| RIVN-28337-4-8 | Oversize +1.5mm | Single Groove | Stainless Steel Black Nitride | Set of 8 |
| RIVN-28337-4 | Oversize +1.5mm | Single Groove | Stainless Steel Black Nitride | Each |
Stainless Steel Black Nitride Intake Valves - Oversize +1.5mm
Applications: Renault F4R RS
| Valve Type | one piece forged (non-magnetic) |
|---|---|
| Coating | black nitride |
| Back-Cut | yes |
| Undercut Stem | yes |
| Material | stainless steel 21-4n |
| Groove Type | single groove |
| Multi-Stage Heat Treatments & Stress Relieving | yes |
| Valve Size | oversize +1.5mm |
| Valve Face Type | dished |
| Valve Length | 110.05mm |
| Head Diameter | 35mm(+1.5) |
| Stem Diameter | 5.47mm |
| Length | 110.05mm |
| Finish | superfinish - 66% smoother surface than a regular valve |
| Hardened Wafer Tip | yes |
Please confirm the selected specification and engine application before ordering.
