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Kelford camshafts, Nissan VK56DE (2003-2024)
1 797,00 €
Kelford camshafts for the Nissan VK56DE engine. Choose a profile to suit your engine parts and intended use. Profile specifications and required modifications are detailed below.
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Kelford is a New Zealand camshaft manufacturer with roots in Christchurch dating back to 1968. Its profiles range from upgrades for street-driven cars to fully built race engines. Choose the cam around the rest of the engine and its intended use, rather than simply picking the longest duration.
This selection is for the Nissan VK56DE engine. Profile differences, spring recommendations and required modifications are detailed below.
Technical specifications – available profiles for this engine
Profile 237-A
A mild VK56DE upgrade for a near-standard engine. Requires ECU tuning and KVS56 springs.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 10.90mm | 10.45mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 10.65mm | 10.20mm |
| Advertised duration @ 0.10mm | 268° | 264° |
| Duration @ 1mm valve lift | 228° | 224° |
| Timing IVO @ 1mm valve lift | 6 BTDC | – |
| Timing IVC @ 1mm valve lift | 42 ABDC | – |
| Timing EVO @ 1mm valve lift | – | 42 BBDC |
| Timing EVC @ 1mm valve lift | – | 2 ATDC |
| Suggested centre lines | 108° | 110° |
| Valve lift at TDC | 1.60mm | 1.20 mm |
Manufacturer profile information
Profile 237-B
For a mildly modified VK56DE, with the emphasis on torque and mid-range pull.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 11.80mm | 11.30mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.55mm | 11.00mm |
| Advertised duration @ 0.10mm | 288° | 278° |
| Duration @ 1.00mm valve lift | 248° | 236° |
| Timing IVO @ 1.00mm valve lift | 18 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 50 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 48 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 8 ATDC |
| Suggested centre lines | 106° | 110° |
| Valve lift at TDC | 3.35mm | 2.13 mm |
Manufacturer profile information
Profile 237-C
For a high-compression, thoroughly modified VK56DE racing engine. Focuses on mid-range and top-end pull.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 12.80mm | 11.85mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 12.55mm | 11.55mm |
| Advertised duration @ 0.10mm | 300° | 288° |
| Duration @ 1.00mm valve lift | 260° | 248° |
| Timing IVO @ 1.00mm valve lift | 29 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 51 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 50 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 18 ATDC |
| Suggested centre lines | 101° | 106° |
| Valve lift at TDC | 5.33mm | 3.33 mm |
Manufacturer profile information
Profile 237-T1
Stage 1 for a turbocharged VK56 making approximately 550–750 hp. Requires KVS56-BT springs.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 10.95mm | 10.85mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 10.70mm | 10.55mm |
| Advertised duration @ 0.10mm | 272° | 264° |
| Duration @ 1.00mm valve lift | 232° | 224° |
| Timing IVO @ 1.00mm valve lift | 3 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 49 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 47 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 3 BTDC |
| Suggested centre lines | 113° | 115° |
| Valve lift at TDC | 1.35mm | 0.66 mm |
Manufacturer profile information
Profile 237-T2
For single- or twin-turbo VK56 engines used on the street, drag strip or in boats. Requires KVS56-BT springs.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 11.75mm | 11.20mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.50mm | 10.90mm |
| Advertised duration @ 0.10mm | 282° | 280° |
| Duration @ 1.00mm valve lift | 240° | 240° |
| Timing IVO @ 1.00mm valve lift | 6 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 54 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 57 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 3 ATDC |
| Suggested centre lines | 114° | 117° |
| Valve lift at TDC | 1.73mm | 1.27 mm |
Manufacturer profile information
Profile 237-T3
For a built twin-turbo VK56 drag engine running E85 or a stronger ethanol blend. Requires KVS56-BT springs.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 12.20mm | 12.25mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.95mm | 11.95mm |
| Advertised duration @ 0.10mm | 294° | 294° |
| Duration @ 1.00mm valve lift | 252° | 252° |
| Timing IVO @ 1.00mm valve lift | 12 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 60 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 66 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 6 ATDC |
| Suggested centre lines | 114° | 120° |
| Valve lift at TDC | 2.14mm | 1.47 mm |
Manufacturer profile information
Checking heights are shown with the duration figures. Net lift is the net valve movement specified by the manufacturer, while cam lift is listed separately. IVO/IVC denote intake valve opening/closing and EVO/EVC exhaust valve opening/closing. BTDC/ATDC mean before/after top dead centre, and BBDC/ABDC before/after bottom dead centre.
Installation and profile selection
Confirm the exact engine version, valvetrain design and the modifications required by the profile. Check cam timing and valve-to-piston clearance during installation. Springs, lifters and other supporting parts mentioned with a profile are not included unless the profile explicitly states that they come with the kit.
Examples of related vehicle applications
- Nissan Titan A60 5.6 VK56DE (2003–2015)
- Nissan Armada WA60 5.6 VK56DE (2003–2015)
- Infiniti QX56 JA60 5.6 VK56DE (2004–2010)
- Nissan Patrol Y62 5.6 VK56DE (2010–2024), onlyDEnotVD
The list covers versions with the specified engines only. Exact fitment and required modifications depend on the selected profile, cylinder head, lifters and timing system.
| Weight | 10 kg |
|---|---|
| Brand |
