Cosworth H11 Head Studs SR20DET
Cosworth H11 Head Studs SR20DET
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In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
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Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
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For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Engine Cylinder Head Stud
- Category
- Motor Vehicle Engine Parts
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 4.0 lb
Billable shipping weight; may include dimensional weight.
Essential for high performance engine builds, heavy duty head studs reduce cylinder head movement in high boost or high compression engines optimizing cylinder head to block sealing. Cosworth Ultra High Performance Head Studs are manufactured from H11 tool steel with 260,000psi tensile strength and come complete with nuts and washers. Manufactured with a hex broach end for ease of installation. Additionally, genuine Cosworth head studs utilize a base seating feature to evenly distribute maximum load on the stud and not the threads. This feature is typically found only in high level race engines. This is the ultimate head stud for serious SR20 applications
Features
- Essential for high power applications
- Superior strength compared to other brands
- High clamping force helps to seal block to cylinder head joint
- Hex broach ends ease installation
- Roll Die formed threads
- 260ksi+ (260,000psi+) tensile strength
- Special heat treat process includes heating in vacuum sealed furnace and quenched in a nitrogen chamber for precision control.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997 - 1998 | Nissan | 180SX | Type-G |
| 1989 - 1995 | Nissan | 180SX | Type-II, Type-I |
| 1992 - 1994 | Nissan | 180SX | Type-III |
| 1996 - 1998 | Nissan | 180SX | Type-S |
| 1994 - 1998 | Nissan | 180SX | Type-X, Type-R |
| 1991 - 1998 | Nissan | 240SX | LE |
| 1989 - 1998 | Nissan | 240SX | SE, Base |
| 1989 - 1990 | Nissan | 240SX | XE |
| 1999 - 2000 | Nissan | Silvia | Autech |
| 1989 - 1991 | Nissan | Silvia | Convertible |
| 1989 - 1998 | Nissan | Silvia | Q's, K's, J's |
| 1999 - 2002 | Nissan | Silvia | Spec R, Spec S |
| 2002 | Nissan | Silvia | Spec S / V Package, Spec R / V Package |
| 2000 - 2002 | Nissan | Silvia | Varietta |
