Description
Overview:
The Valve Spring Collar In & Ex (GUIDE End) is a genuine Jap component for the JAP 600CC SV MK3 engine, OEM No. 6272. This collar is fitted at the guide end of the valve spring on both the intake and exhaust sides, helping to locate the spring accurately and maintain correct installed height for reliable valve control. Made from durable steel suited to high-cycle engine use, it supports consistent seating pressure and reduces wear in the valve train. Supplied as unused old stock from vintage ranges, it may show cosmetic tarnishing or minor age-related marks, but remains mechanically sound. A practical choice for restorations and scheduled maintenance on engines using the JAP 600CC SV MK3 platform, where correct, original-spec parts are essential for long-term service.
Key Features:
- Genuine Jap part for assured compatibility and reliability (OEM No. 6272)
- Designed for both intake and exhaust valve springs at the guide end
- Steel construction for strength, wear resistance, and stable spring support
- Built to original specification for correct fit and function on the JAP 600CC SV MK3
- Helps maintain spring alignment and installed height for consistent valve timing
- Suitable as a like-for-like replacement during rebuilds or routine servicing
- Unused old stock; may show light tarnishing with no impact on performance
- Supports smooth engine running by minimising spring movement and seat wear
- Simple to install for competent mechanics and restoration specialists
- Ideal for preserving vintage machinery performance with authentic parts
Typical Applications:
Used during cylinder head overhauls, top-end rebuilds, and preventative maintenance on vintage machinery powered by the JAP 600CC SV MK3 engine. Suitable when replacing worn or damaged collars to restore stable valve spring seating, improve running quality, and maintain original engine specifications in restorations, workshop repairs, and heritage equipment upkeep.
Also known as:
Valve spring retainer, spring cap, top collar, guide-end spring collar. These terms are often used by engine builders and parts catalogues to describe the same locating collar that supports and secures a valve spring at the guide end in side-valve engines.
Fits Models:
JAP 600CC SV MK3
Product Specifications
| L&S Part No. | 6272 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | JAP |
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