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Kelford camshafts, Nissan SR16VE / SR20VE (1997-2003)
Price range: 1 262,00 € through 1 308,00 €
Kelford camshafts for the Nissan SR16VE / SR20VE 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 SR16VE / SR20VE engine. Profile differences, spring recommendations and required modifications are detailed below.
Technical specifications – available profiles for this engine
Profile 184-C
For tuned naturally aspirated engines with high compression, a ported head and substantial intake and exhaust changes. Idle remains reasonable with a plenum intake manifold. VVL engages at approximately 5500 rpm, with pull to around 9500 rpm depending on the engine. Recommended springs: KVS10-BT. Low-lobe figures: intake 250° / 10.2 mm, exhaust 246° / 8.3 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 8.01mm | 7.63mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 12.50mm | 11.80mm |
| Advertised duration @ 0.10mm | 314° | 308° |
| Duration @ 1.00mm valve lift | 266° | 258° |
| Timing IVO @ 1.00mm valve lift | 29 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 57 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 49 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 29 ATDC |
| Suggested centre lines | 104° | 100° |
| Valve lift at TDC | 4.02mm | 4.26 mm |
Manufacturer profile information
Profile 184-C4
For an extensively tuned naturally aspirated engine with high compression, a ported head and well-matched intake and exhaust parts. Also suits strokers and individual throttle bodies. Larger low lobes add mid-range pull, though idle may be uneven with a plenum manifold. VVL engages at around 6000 rpm and the engine can pull to roughly 10000 rpm, depending on the build. Recommended springs: KVS10-BT. Low lobes: intake 272° / 10.2 mm, exhaust 254° / 10.2 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 8.01mm | 7.63mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 12.50mm | 11.80mm |
| Advertised duration @ 0.10mm | 314° | 308° |
| Duration @ 1.00mm valve lift | 266° | 258° |
| Timing IVO @ 1.00mm valve lift | 32 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 54 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 47 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 31 ATDC |
| Suggested centre lines | 101° | 98° |
| Valve lift at TDC | 4.40mm | 4.52 mm |
Manufacturer profile information
Profile 184-D
Street profile for a tuned naturally aspirated SR16VE/SR20VE, combining Nissan N1 high lobes with 20V low lobes. Driveability and idle remain manageable below VVL, with the high lobes focused on approximately 5500–9000 rpm. Requires basic intake and exhaust upgrades. Recommended springs: KVS10-BT. Low lobes: intake 250° / 10.2 mm, exhaust 246° / 8.3 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 7.70mm | 7.69mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 12.00mm | 11.90mm |
| Advertised duration @ 0.10mm | 300° | 300° |
| Duration @ 1.00mm valve lift | 255° | 252° |
| Timing IVO @ 1.00mm valve lift | 25.5 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 49.5 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 50 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 22 ATDC |
| Suggested centre lines | 102° | 104° |
| Valve lift at TDC | 4.03mm | 3.49 mm |
Manufacturer profile information
Profile 184-E
For a naturally aspirated circuit or drag race engine running race fuel. Suits strokers, individual throttle bodies and a lightweight car with close-ratio gearing. Not intended for street use. The VVL range can extend beyond 10000 rpm. Recommended springs: KVS10-BT. Low lobes: intake 272° / 10.2 mm, exhaust 254° / 10.2 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 8.33mm | 7.63mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 13.00mm | 11.80mm |
| Advertised duration @ 0.10mm | 318° | 312° |
| Duration @ 1.00mm valve lift | 274° | 258° |
| Timing IVO @ 1.00mm valve lift | 36 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 58 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 47 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 31 ATDC |
| Suggested centre lines | 101° | 98° |
| Valve lift at TDC | 5.05mm | 4.52 mm |
Manufacturer profile information
Profile 184-EK
For a thoroughly built naturally aspirated circuit or drag engine on race fuel. Suitable for stroker builds and individual throttle bodies, particularly in a light car with close-ratio gearing. Not intended for street cars, operating range extends beyond 10,000 rpm. The centre lobe is removed and large profiles are placed on the outer lobes, allowing VVL deletion and reduced valvetrain mass. Recommended springs: KVS10-BT.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.40mm cold at the cam |
| Cam lift | 8.33mm | 7.78mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 13.01mm | 11.81mm |
| Advertised duration @ 0.10mm | 318° | 312° |
| Duration @ 1.00mm valve lift | 274° | 262° |
| Timing IVO @ 1.00mm valve lift | 36 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 58 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 49 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 33 ATDC |
| Suggested centre lines | 101° | 98° |
| Valve lift at TDC | 5.05mm | 3.94 mm |
Manufacturer profile information
Profile 184-LT
Street profile for turbocharged SR16VE/SR20VE engines making around 350–700 hp with a 52–64 mm turbo. Both the low and VVL lobes are timed for boost, giving a wider usable power band. Adds mid-range and top-end pull while retaining street manners and throttle response. Recommended springs: KVS10-BT. Low lobes: intake 250° / 10.2 mm, exhaust 246° / 8.3 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 6.83mm | 6.88mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 10.60mm | 10.60mm |
| Advertised duration @ 0.10mm | 274° | 274° |
| Duration @ 1.00mm valve lift | 236° | 236° |
| Timing IVO @ 1.00mm valve lift | 10 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 46 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 52 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 4 ATDC |
| Suggested centre lines | 108° | 114° |
| Valve lift at TDC | 2.02mm | 1.43 mm |
Manufacturer profile information
Profile 184-ST
For street or circuit use with a turbocharged SR16VE/SR20VE making around 700–1000 hp and a 64–68 mm turbo. Shares its low lobes with 184-LT, retaining driveability below VVL engagement. VVL switches at roughly 5500 rpm, with the engine pulling to around 9000 rpm depending on the build. Suitable for E85. Recommended springs: KVS10-BT. Low lobes: intake 250° / 10.2 mm, exhaust 246° / 8.3 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 6.83mm | 6.88mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 10.60mm | 10.60mm |
| Advertised duration @ 0.10mm | 290° | 290° |
| Duration @ 1.00mm valve lift | 246° | 246° |
| Timing IVO @ 1.00mm valve lift | 15 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 51 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 59 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 7 ATDC |
| Suggested centre lines | 108° | 116° |
| Valve lift at TDC | 2.68mm | 1.76 mm |
Manufacturer profile information
Profile 184-STK
Race profile for turbocharged SR16VE/SR20VE engines making around 700–1000 hp with a 64–68 mm turbo. The centre lobe is removed and the large profiles are on the outer lobes, allowing VVL removal and a lighter valvetrain. Pulls to approximately 9000 rpm and suits E85. Recommended springs: KVS10-BT.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.25mm cold at the cam |
| Cam lift | 6.83mm | 6.88mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 10.60mm | 10.60mm |
| Advertised duration @ 0.10mm | 290° | 290° |
| Duration @ 1.00mm valve lift | 246° | 246° |
| Timing IVO @ 1.00mm valve lift | 15 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 51 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 59 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 7 ATDC |
| Suggested centre lines | 108° | 116° |
| Valve lift at TDC | 2.68mm | 1.76 mm |
Manufacturer profile information
Profile 184-T
Circuit or drag profile for turbocharged SR16VE/SR20VE engines making over 1200 hp, with a turbo of at least 72 mm and alcohol-based fuel. Larger low lobes add mid-range pull, with the VVL lobes working beyond 10000 rpm. Recommended springs: KVS10-BT. Low lobes: intake 260° / 10.2 mm, exhaust 260° / 10.15 mm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 7.33mm | 7.38mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 11.40mm | 11.32mm |
| Advertised duration @ 0.10mm | 292° | 308° |
| Duration @ 1.00mm valve lift | 250° | 256° |
| Timing IVO @ 1.00mm valve lift | 17 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 53 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 64 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 12 ATDC |
| Suggested centre lines | 108° | 116° |
| Valve lift at TDC | 3.44mm | 2.12 mm |
Manufacturer profile information
Profile 184-TK
High-rpm drag profile for turbocharged SR16VE/SR20VE engines making over 1200 hp, with a turbo of at least 72 mm and alcohol-based fuel. Intended for operation beyond 10000 rpm. The centre lobe is removed and the large profiles are on the outer lobes, allowing VVL removal and a lighter valvetrain. Recommended springs: KVS10-BT.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.20mm cold at the cam | 0.30mm cold at the cam |
| Cam lift | 7.33mm | 7.38mm |
| Rocker ratio | 1.6 | 1.6 |
| Net valve lift | 11.40mm | 11.32mm |
| Advertised duration @ 0.10mm | 292° | 308° |
| Duration @ 1.00mm valve lift | 250° | 256° |
| Timing IVO @ 1.00mm valve lift | 17 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 53 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 64 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 12 ATDC |
| Suggested centre lines | 108° | 116° |
| Valve lift at TDC | 3.44mm | 1.76 mm |
Manufacturer profile information
Profile 184-TK2
For an SR16VE/SR20VE drag engine making over 1400 hp with a turbo of at least 75 mm. For alcohol fuel, working beyond 10000 rpm. The centre lobe is removed and the large profiles are on the outer lobes, allowing VVL removal and a lighter valvetrain. Recommended springs: KVS10-BT.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 8.06mm | 8.06mm |
| Net valve lift | 12.50mm | 12.50mm |
| Advertised duration @ 0.10mm | 296° | 302° |
| Duration @ 1.00mm valve lift | 254° | 260° |
| Rocker ratio | 1.6 | 1.6 |
| Suggested centre lines | 108 ATDC | 116 BTDC |
| Valve clearance | 0.25mm Set COLD at the CAM | 0.25mm Set COLD at the CAM |
| Timing IVO @ 1.00mm valve lift | 19 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 55 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 66 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 14 ATDC |
| Valve lift at TDC | 2.94mm | 2.36 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 Pulsar N15 VZ-R / VZ-R N1, SR16VE (1997–2000)
- Nissan Lucino N15 VZ-R, SR16VE (1997–1999)
- Nissan Primera P11/P12, SR20VE (1997–2003)
- Nissan Bluebird U14 SSS-Z, SR20VE (1997–2001)
- Nissan Wingroad Y10 / Y11 ZV-S, SR20VE (1997–2000)
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 |
