Description
Part Number: BC3313
Brian Crower Toyota 1JZ 31mm (+1mm Oversize) Stainless Steel Exhaust Valves
Engineered specifically for high-boost and high-RPM Toyota 1JZ engines, this set of 12 oversized exhaust valves delivers unmatched thermal stability and superior exhaust gas evacuation.
Key Features & Performance Benefits
- ☑ +1mm Oversize Head (31.0mm): Significantly enlarges valve surface area to maximize exhaust flow and volumetric efficiency in tuned 1JZ heads.
- ☑ EV8+ Stainless Steel Construction: Premium forged alloy designed to withstand extreme thermal shock and high EGTs in high-horsepower turbo applications.
- ☑ Friction-Welded Stellite Tip: Hardened stem tip guarantees exceptional wear resistance against harsh valvetrain contact.
- ☑ Undercut Stem Design: Reduces overall reciprocating mass while smoothing airflow transition under high-rpm operation.
- ☑ Swirl Polished Finish: Fully machined and swirl polished under-head surface minimizes carbon accumulation and turbulent air resistance.
Technical Specifications
| Manufacturer | Brian Crower (BC) |
|---|---|
| Part Number | BC3313 |
| Engine Application | Toyota 1JZ-GE / 1JZ-GTE |
| Valve Type | Exhaust (Dished Head) |
| Head Diameter | 31.0mm (+1.0mm Oversize) |
| Stem Diameter | 5.97mm |
| Overall Length | 98.1mm |
| Material | Forged EV8+ Stainless Steel with Stellite Tip |
| Quantity Supplied | Set of 12 Exhaust Valves |
What’s Included in the Box
- 12x Brian Crower 31mm (+1mm Oversize) Stainless Steel Exhaust Valves (BC3313)
- Brian Crower Inspection & Spec Sheet
Engineered to handle extreme power demands, Brian Crower valvetrain components are the gold standard for drift, circuit, and drag racing builds. Order your genuine Brian Crower BC3313 valve set from JP Racing today for complete technical support and fast UK delivery.
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