The Enginetech EPC746-HD is a bulk 200 pack of heat-treated valve keepers (also known as valve locks or valve spring retainer keepers) with a 2 round grooves profile. Fits 1956-1994 Chrysler/Dodge/Plymouth 2.8L/3.2L/3.7L+ applications.
Important Notes
- Bulk 200 Pack for machine shops and rebuilders: covers approximately 6 complete 2-valve V8 engine rebuilds or 12 2-valve L4 rebuilds at two keepers per valve. Order additional packs for 4-valve-per-cylinder applications or higher volume.
- Two keepers per valve: keepers are split wedges that meet around the valve stem groove to form a complete collet, which locks the valve spring retainer to the stem. Always order in even quantities.
- Groove profile: matches a 2-round grooved valve stem. Keepers must match the count and shape of grooves on the valve stem exactly - a mismatch will prevent proper spring retention.
- Heat-treated for elevated hardness and resistance to groove deformation under sustained valve spring load. Suitable for performance, commercial, and heavy-duty applications where standard-hardness keepers would be marginal.
- Cross-references multiple OE and aftermarket part numbers - see the OEM Cross-References section below.
- Always verify the OE valve stem diameter, groove count, groove shape (round vs square), and cylinder head material against the original keepers being replaced before installation. Keeper profiles are application-specific and cannot be interchanged freely between engines.
Specifications
| Part Number | EPC746-HD |
| Product Type | Valve Keeper (Valve Lock / Spring Retainer Keeper) |
| Pack Size | 200 keepers per pack |
| Per Valve | 2 keepers required (1 pair per valve) |
| Groove Count | 2 |
| Groove Shape | Round |
| Heat Treated | Yes (performance/HD grade) |
| Weight | 1 lbs |
| UPC | 707473076128 |
| Country of Origin | US |
| OEM Cross-References | Manley: VK-82, Elgin: EHC-746, Elgin: EHC746, Melling: VL-560, Melling: VL100, Clevite: VK80, FEL-PRO: FP2A4429, FEL-PRO: FPB367R |
Vehicle Fitment
- 1956 Plymouth Fury 4.5L 277ci V8 OHV
- 1956-1957 Plymouth Belvedere 4.5L 277ci V8 OHV
- 1956-1957 Plymouth Plaza 4.5L 277ci V8 OHV
- 1956-1957 Plymouth Savoy 4.5L 277ci V8 OHV
- 1956-1957 Plymouth Suburban 4.5L 277ci V8 OHV
- 1958 Dodge Coronet 5.9L 361ci V8 OHV
- 1958 Dodge Custom 5.9L 361ci V8 OHV
- 1958 Dodge Lancer 5.9L 361ci V8 OHV
- 1958 Dodge Royal 5.9L 361ci V8 OHV
- 1958 Dodge Sierra 5.9L 361ci V8 OHV
- 1958-1978 Plymouth Fury 5.2L 318ci V8 OHV
- 1959 Chrysler Saratoga 6.3L 383ci V8 OHV
- 1959 Chrysler Windsor 6.3L 383ci V8 OHV
- 1959 Dodge Coronet 5.3L 326ci V8 OHV
- 1959 Dodge Coronet 5.9L 361ci V8 OHV
- 1959 Dodge Coronet 5.9L 361ci V8 OHV
- 1959 Dodge Coronet 6.3L 383ci V8 OHV
- 1959 Dodge Custom 5.3L 326ci V8 OHV
- 1959 Dodge Custom 5.9L 361ci V8 OHV
- 1959 Dodge Custom 5.9L 361ci V8 OHV
- ...and 1009 additional applications
Enginetech Valve Keepers (also called valve locks or valve spring retainer keepers) are precision-machined split wedges that lock the spring retainer onto the valve stem groove, holding the valve spring under preload and transmitting the spring force to the valve. Each valve uses two keepers that meet around the stem groove, so a single engine requires two keepers per valve (for example, a typical V8 with 16 valves requires 32 keepers). These keepers are supplied in bulk pack quantities for machine shops and rebuilders. Always verify the valve stem diameter, groove count, groove profile (round vs square), and cylinder head material against the OE specification before installation; keeper profiles are specific to each valve family and cannot be interchanged freely even between engines of similar displacement.
