NISSAN SR20 DE / DET 2.0L DOHC |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
SX / NX / Sentra / G20 91-98 | 34.15mm (std) | 5.97mm | 101.40mm | NIVN-1005 | 30.15mm (Std) | 5.94mm (DE) | 102.40mm | NEVN-1005 |
34.65mm (+0.5) | NIVN-1006 | 30.65mm (+0.5) | NEVN-1006 |
35.15mm (+1.0) | NIVN-1007 | 31.15mm (+1.0) | NEVN-1007 |
| | | | 31.15mm (+1.0) | NEVI-1007* |
| | | | 30.15mm (std) | 6.94 mm (DET) | 102.40mm | NEVI-1005/7* |
| | | | 31.15 (+1.0) | NEVI-1007/7* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-H1020S/SR20 | 30.00 | 21.80 | SINGLE | 75 @ 40.5 | 168 @ 12.0 | 15.00 | 25.50 | 7.90 | RET-NSR20/T1 + Factory Seat |
SPR-H1022D/SR20 | 30.00 | 21.80 | 20.50 | 15.50 | 95 @ 40.5 | 230 @ 12.0 | 16.00 | 19.50 | 11.20 | RET-NSR20/T1 + SEAT-SR20/6 + SEAT-H/N240 |
OEM SEAT |
SPR-H1021D/SR20 | 30.00 | 21.80 | 21.30 | 15.50 | 106 @ 40.5 | 265 @ 12.0 | 15.50 | 25.00 | 13.20 | RET-NSR20/T1 + SEAT-SR20/6 + SEAT-H/N240 |
OEM SEAT |
SPR-H1020D/SR20 | 30.00 | 21.80 | 21.30 | 15.50 | 116 @ 40.5 | 275 @ 12.0 | 15.00 | 25.50 | 13.20 | RET-NSR20/T1 + SEAT-SR20/6 + SEAT-H/N240 |
OEM SEAT |
VALVE GUIDES | INTAKE: GDE-NSR6-I | EXHAUST: GDE-NSR6-E |
EXHAUST: GDE-NSR6-ET (7mm to 6mm Guide conversion - Use Seal VS-N6-E ) |
EXHAUST: GDE-NSR7-E) ( Use Seal VS-N7-E |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E for the DE / VS-N7-E for the DET |
TITANIUM VALVES | PLEASE CALL |
NISSAN SR20 VE 2.0L DOHC |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
35.5mm (+1) | 5.97mm | 99.70mm | NIVN-1007-VE | 31.15mm (+2) | 5.97mm | 100.5 | NEVI-1007-VE* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-2035-2022 | 30.00 | 21.80 | 20.50 | 15.50 | 93 @ 37.5 | 187 @ 10 | 15.50 | 22.00 | 9.40 | RET-NSR20/T1 + Factory Seat |
SPR-H1022D-VE | 30.00 | 21.80 | 20.50 | 15.50 | 123 @ 37.5 | 238 @ 10 | 15.50 | 22.00 | 11.20 | RET-NSR20/T1 + OEM SEAT (To increase Net Lift it is necessary to machine inner spring boss) |
SPR-H1021D-VE | 30.00 | 21.80 | 21.30 | 15.50 | 138 @ 37.5 | 270 @ 10 | 14.30 | 23.10 | 13.20 | RET-NSR20/T1 + OEM SEAT (To increase Net Lift it isnecessary to machine inner spring boss) |
VALVE GUIDES | INTAKE: GDE-NSR6-I | EXHAUST: GDE-NSR6-E |
NISSAN Pulsar GTi-R / RNN14 |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Nissan Pulsar GTi-R | 35.15mm (+1) | 5.97mm | 102.10mm | NIVN-1007-GTIR | 31.15mm (+1) | 6.94mm | 103mm | NEVI-1007-7GTIR* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-H1005D/GTIR | 29.65 | 21.85 | 20.50 | 15.50 | 75 @ 38.5 | 190 @ 10 | 17** (10.6mm) | 20.70 | 11.50 | RET-NSR20/T1 + OEM seat |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N7-E |
| ** Retainer will hit the guide at 10.6mm of lift |
NISSAN 300 - VG30D 3.0L DOHC |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
300 ZX 90-96 | 34.5mm (+0.5) | 5.97mm | 103.15mm | NIVN-1017 | 30.0mm (+0.5) | 5.97mm | 103.70mm | NEVI-1017* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-TS1015/2 | 27.50 | 20.00 | 20.00 | 15.20 | 84 @ 35 | 202 @ 10 | 12.00 | 20.70 | 12.70 | RET-NVG1015/T1 + SEAT-TS1015 |
SPR-TS1012/2 | 27.50 | 20.00 | 20.00 | 15.20 | 74 @ 35 | 192 @ 10 | 12.00 | 20.70 | 12.70 | RET-NVG1015/T1 + SEAT-TS1015 |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
NISSAN 240 - KA24DE 2.4L DOHC |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
240 SX / Altima 91- 99 | 36.60mm (std) | 6.97mm | 101.32mm | NIVN-1009 | 31.8mm (+0.5) | 6.94mm | 99.00mm | NEVN-1010 |
37.10mm (+0.5) | NIVN-1010 | 32.00mm (+0.7) | NEVI-1011* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-H1000D/240 | 29.65 | 21.85 | 20.50 | 15.50 | 96 @ 34.85 | 240 @ 11.80 | 14.00 | 20.70 | 12.80 | RET-H70/T1 + SEAT-H/N240 |
SPR-H100DR/240 | 30.20 | 22.20 | 22.20 | 16.80 | 84 @ 34.85 | 225 @ 11.80 | 14.20 | 20.50 | 12.00 | RET-H70/T1 + SEAT-H/N240 |
SPR-H1002D/240 | 29.05 | 21.85 | 20.50 | 15.50 | 73 @ 34.85 | 225 @ 11.80 | 15.30 | 19.50 | 10.00 | RET-H70/T1 + SEAT-H/N240 |
VALVE SEALS | INTAKE: VS-N7-E | EXHAUST: VS-N7-E |
CAM FOLLOWERS | CF-34/3.5+ (+ shims 1.5mm to 2.7mm thick) |
NISSAN SKYLINE RB20 24v DOHC / HYDRAULIC LIFTER |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Skyline RB20 DET 6Cyl / 24v | 31.10mm (+1.0) | 5.97mm | 90.7mm | NIVN-1042 | 27.50mm (+1.0) | 5.94mm | 89.90mm | NEVI-1042* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-2081/RB20 | 27.50 | 20.00 | SINGLE | 70 @ 32.8 | 156 @ 9 | 12.10 | 20.70 | 9.60 | RET-NVG1015/T1 + SEAT SS-2820/2.2 |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | Factory Hydraulic Cam Follower |
NISSAN SKYLINE RB20 24v DOHC / SOLID LIFTER CONVERSION |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Skyline RB20 DET 6Cyl / 24v | 31.10mm (+1.0) | 5.97mm | 107.5mm | NIVN-1042-SL | 27.50mm (+1.0) | 5.94mm | 106.7mm | NEVI-1042-SL* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-TS1015/RB20 | 27.50 | 20.00 | 20.00 | 15.20 | 75 @ 35.60 | 208 @ 11 | 14.90 | 20.70 | 12.10 | RET-NVG1015/T1 + SEAT-RB25-E (24) |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | For standard Base Circle: CF-31/2.5+ SHIMS / For reduced Base Circle CF-31/3.28+ SHIM |
NISSAN SKYLINE RB25 24v DOHC / HYDRAULIC LIFTER |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Skyline RB25 DET 6Cyl / 24v 92-01 | 35.15mm (+1.0) | 5.97mm | 86.75mm | NIVN-1052 | 30.65mm (+1.0) | 5.94mm | 89.00mm | NEVI-1052* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-2081/RB25 | 27.50 | 20.00 | SINGLE | 85 @ 30.6 | 171 @ 9 | 9.90 | 20.70 | 9.60 | RET-NVG1015/T1 + Intake OE seat+ Exhaust SS-2820-E +OE |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | Factory Hydraulic Cam Follower |
NISSAN SKYLINE RB25 24v DOHC / SOLID LIFTER CONVERSION |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Skyline RB25 DET 6Cyl / 24v 92-01 | 35.15mm (+1.0) | 5.97mm | 103.55mm | NIVN-1052-SL | 30.65mm (+1.0) | 5.94mm | 105.8mm | NEVI-1052/SL* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-TS1015/RB25 | 27.50 | 20.00 | 20.00 | 15.20 | 83 @ 35.00 | 216 @ 11 | 14.30 | 20.70 | 12.10 | RET-NVG1015/T1 + SEAT-RB25-I (12) + SEAT-RB25-E (12) |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | For standard Base Circle: CF-31/2.5+ SHIMS / For reduced Base Circle CF-31/3.28+ SHIM |
NISSAN SKYLINE RB26 24v DOHC |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Skyline RB26 DET 6Cyl/24v 92-01 | 35.65mm (+1.0) | 5.97mm | 102.3mm | NIVN-1032 | 31.15mm (+1.0) | 6.94mm | 101.2mm | NEVI-1032/7* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-M1007S/RB | 28.10 | 20.00 | SINGLE | 70 @ 40.7 | 188 @ 11 | 16.00 | 24.70 | 10.50 | RET-NRB60/TS + factory seat (opt. spring shim SS-3025 ) |
SPR-M1007D/RB | 28.10 | 20.00 | 20.00 | 15.20 | In: 92@40.7 | In: 232 @11 | 15.30 | 24.70 | 12.50 | RET-NRB60/TS + factory seat |
Ex: 82 @40.7 | Ex: 222 @11 |
SPR-TS1015/RB26 | 27.50 | 20.00 | 20.00 | 15.20 | In: 71 @ 35.0 | Int: 204 @ 11 | 14.30 | 20.70 | 12.10 | RET-NRB60/TS + SEAT-RB26/TS4 (no Factory) |
Ex:64 @ 35.0 | Exh: 197 @ 11 |
VALVE GUIDES | INTAKE: GDE-NSR6-I | EXHAUST: GDE-NSR7-E |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N7-E |
CAM FOLLOWERS | CF-31/2.7 (OE is 3mm thick / use OE shims) or CF-31/3.28+ (+ Supertech Shims / require our Retainer RET-NRB60/TS-2 / NO OE SHIMS ) |
NISSAN 350Z / Titan 5.6L V8 / ARMADA VK56DE |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
VQ35 6cyl 24v | 37.15mm (std) | 5.96mm | 96.6mm | NIVN-1025 | 30.50mm (-0.8) | 5.95mm | 95.0mm (+1) | NEVI-1023F* |
38.15mm (+1.0) | NIVN-1028 | 31.35mm (std) | 94.0mm | NEVN-1025 / NEVI-1025F* |
| NIVN-1028L (+2.5) | 32.35mm (+1.0) | NEVN-1028 / NEVI-1028D* |
| | 33mm (+1.65) | NEVI-1029F* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-TS1015/N35 | 27.50 | 20.00 | 20.00 | 15.20 | 82 @ 35 | 215 @ 11 | 14.50 | 20.70 | 12.10 | RET-TS5.5/T6 + SEAT-TS1015 + Factory seat |
SPR-TS1015/N352 | 27.50 | 20.00 | 20.00 | 15.20 | 70 @ 36 | 200 @ 11 | 15.50 | 20.70 | 12.10 | RET-TS5.5/T8 + SEAT-TS1015 + Factory seat |
SPR-TS1012/N35 | 27.50 | 20.00 | 20.00 | 15.20 | 58 @ 36 | 163 @ 11 | 16.00 | 20.00 | 9.60 | RET-TS5.5/T8 + SEAT-TS1015 + Factory seat |
SPR-TS2081/N35 | 27.50 | 20.00 | SINGLE | 55 @ 35 | 160 @ 11 | 14.50 | 20.70 | 9.60 | RET-TS5.5/T6 + Factory seat |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | CF-34/6.5+ (+ shims) |
BLOCK GUARD | BG-VQ35DET |
NISSAN CA18 DET |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
CA18 DET | 34.15mm (std) | 5.97mm | 88.9 | NIVN-1001 | 28.15mm (std) | 5.95mm | 89.30mm | NEVI-1001* |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPR-TS2081/NCA | 27.50 | 20.00 | SINGLE | 55 @ 35 | 150 @ 10 | 13.50 | 20.70 | 9.60 | RET-NVG1015/T1 +OEM Seat+ Seat SS-3025 |
SPR-TS1012/NCA | 27.50 | 20.00 | 20.00 | 15.20 | 73 @ 35 | 175 @ 10 | 15.00 | 20.00 | 10.20 | RET-NVG1015/T1 +OEM Seat+inner SEAT-1015/2 (optional) |
SPR-TS1015/NCA | 27.50 | 20.00 | 20.00 | 15.20 | 82 @ 35 | 207 @ 10 | 14.30 | 20.70 | 12.50 | RET-NVG1015/T1 +OEM Seat+inner SEAT-1015/2 (optional) |
NISSAN TB48DE PATROL 6 Cyl |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided |
TB48DE | 40.00mm (+1.5) | 6.97mm | 100.10mm | NIVN-4070D / Flat | 34.80 (+1.5mm) | 6.95mm | 98.30mm | NEVN-3470D / Flat |
40.50mm (+2) | 6.97mm | 100.10mm | NIVN-4170F Flat | | | | |
NISSAN VR38DETT 3.8L V6 24v |
| INTAKE VALVE | Part Number | EXHAUST VALVE | Part Number |
| Head Diam | Stem. Diam | Length | Black Nitrided | Head Diam | Stem. Diam | Length | Black Nitrided / Inconel |
Nissan GT-R 2007- '11 | 38.15mm (+1) | 5.96mm | 95.00mm | NIVN-1062 | 33.15mm (+1) | 5.95mm | 92.00mm | NEVI-1062 |
ENGINE COMPONENTS |
VALVE SPRINGS | Outer Spring | Inner Spring | Pressure (lbs@mm) | Max Net lift | Coil Bind | Rate | Titanium Retainer |
Part Number | O.D. (mm) | I.D. (mm) | O.D. (mm) | I.D. (mm) | Seat | Open (lift) | mm | mm | lbs./mm | Part Number |
SPRK-TS1012/GTR Intake | 27.50 | 20.00 | 20.00 | 15.20 | 60 @ 36 | 166 @ 10 | 16.00 | 20.00 | 10.50 | RET-TS5.5/T8 + SEAT-TS/GTR |
SPRK-TS1012/GTR Exhaust | 80 @ 34.2 | 185 @ 10 | 14.50 | RET-TS5.5/T9 + SEAT-TS/GTR |
SPRK-TS1015/GTR Intake | 27.50 | 20.00 | 20.00 | 15.20 | 70 @ 36 | 190 @ 10 | 16.00 | 20.70 | 12.10 | RET-TS5.5/T8 + SEAT-TS/GTR |
SPRK-TS1015/GTR Exhaust | 90 @ 34.2 | 212 @ 10 | 14.00 | RET-TS5.5/T9 + SEAT-TS/GTR |
VALVE SEALS | INTAKE: VS-N6-I | EXHAUST: VS-N6-E |
CAM FOLLOWERS | CF-34/6.5+ (+ shims) |