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{{ImportedFrom|site=Xenonzcar|title=XenonZcar|url=https://dev.z31library.com/xenonzcar_archive/s130/cams.php.html|archive=https://dev.z31library.com/xenonzcar_archive/s130/cams.php.html|fetched=2026-05-15}}
{{ImportedFrom|site=Xenonzcar|title=XenonZcar|url=https://z31library.com/xenonzcar_archive/s130/cams.php.html|archive=https://z31library.com/xenonzcar_archive/s130/cams.php.html|fetched=2026-05-15}}


== S30 Camshaft Specifications ==
== S30 Camshaft Specifications ==
Line 11: Line 11:
== Stock Specs ==
== Stock Specs ==


| Engine | L24 | L26 | L28 L28E | L28E | L28ET | L28ET | L28ET | L24E |
{| class="wikitable"
|---|---|---|---|---|---|---|---|---|
! Engine
| Head | E31/E88 | E88 | N42/N47, P79 | P79 | P90 | P90 | P90A | N47 |
! L24
| Cam Mark | A | C | A | F | B | J | M | E |
! L26
| Applied Date | All | All | Before 8/81 | 9/81 and After | Auto Before 7/82 | Manual Before 7/82 | All after 8/82 | All |
! L28 L28E
| Part # 13001-XXXXX | E4126 | N3626 | E4126 | P7980 | P3026 | P9580 | P9980 | S6280 |
! L28E
| Intake Duration | 248 | 256 | 248 | 240 | 240 | 240 | 240 | 240 |
! L28ET
| Deg BTC Intake Opens | 16 | 20 | 16 | 16 | 12 | 12 | 16 | 22 |
! L28ET
| Deg ABC Intake Closes | 52 | 56 | 52 | 44 | 48 | 48 | 44 | 38 |
! L28ET
| Int Center Angle | 18 | 18 | 18 | 14 | 18 | 18 | 14 | 8 |
! L24E
| Exhaust Duration | 248 | 256 | 248 | 248 | 248 | 240 | 240 | 240 |
|-
| BBC Exhaust Opens | 54 | 58 | 54 | 58 | 54 | 52 | 54 | 54 |
| Head
| ATC Exhaust Closes | 14 | 18 | 14 | 10 | 14 | 8 | 6 | 6 |
| E31/E88
| Exhaust Center Angle | 20 | 20 | 20 | 24 | 20 | 22 | 24 | 24 |
| E88
| Lobe Centers | 109 | 109 | 109 | 109 | 109 | 110 | 109 | 106 |
| N42/N47, P79
| Cam Lift Intake | 0.289 | 0.276 | 0.289 | 0.276 | 0.276 | 0.276 | 0.266 | 0.276 |
| P79
| Cam Lift Exhaust | 0.289 | 0.289 | 0.289 | 0.289 | 0.289 | 0.276 | 0.264 | 0.276 |
| P90
| Valve Lift Intake | 0.413 | 0.394 | 0.413 | 0.394 | 0.394 | 0.394 | 0.378 | 0.394 |
| P90
| Valve Lift Exhaust | 0.409 | 0.409 | 0.409 | 0.409 | 0.409 | 0.39 | 0.374 | 0.39 |
| P90A
| N47
|-
| Cam Mark
| A
| C
| A
| F
| B
| J
| M
| E
|-
| Applied Date
| All
| All
| Before 8/81
| 9/81 and After
| Auto Before 7/82
| Manual Before 7/82
| All after 8/82
| All
|-
| Part # 13001-XXXXX
| E4126
| N3626
| E4126
| P7980
| P3026
| P9580
| P9980
| S6280
|-
| Intake Duration
| 248
| 256
| 248
| 240
| 240
| 240
| 240
| 240
|-
| Deg BTC Intake Opens
| 16
| 20
| 16
| 16
| 12
| 12
| 16
| 22
|-
| Deg ABC Intake Closes
| 52
| 56
| 52
| 44
| 48
| 48
| 44
| 38
|-
| Int Center Angle
| 18
| 18
| 18
| 14
| 18
| 18
| 14
| 8
|-
| Exhaust Duration
| 248
| 256
| 248
| 248
| 248
| 240
| 240
| 240
|-
| BBC Exhaust Opens
| 54
| 58
| 54
| 58
| 54
| 52
| 54
| 54
|-
| ATC Exhaust Closes
| 14
| 18
| 14
| 10
| 14
| 8
| 6
| 6
|-
| Exhaust Center Angle
| 20
| 20
| 20
| 24
| 20
| 22
| 24
| 24
|-
| Lobe Centers
| 109
| 109
| 109
| 109
| 109
| 110
| 109
| 106
|-
| Cam Lift Intake
| 0.289
| 0.276
| 0.289
| 0.276
| 0.276
| 0.276
| 0.266
| 0.276
|-
| Cam Lift Exhaust
| 0.289
| 0.289
| 0.289
| 0.289
| 0.289
| 0.276
| 0.264
| 0.276
|-
| Valve Lift Intake
| 0.413
| 0.394
| 0.413
| 0.394
| 0.394
| 0.394
| 0.378
| 0.394
|-
| Valve Lift Exhaust
| 0.409
| 0.409
| 0.409
| 0.409
| 0.409
| 0.39
| 0.374
| 0.39
|}


=== Aftermarket cams ===
=== Aftermarket cams ===
Line 37: Line 199:
== Colt Cams ==
== Colt Cams ==


| ID NUMBER | ? | DURATION | CAM LIFT | VALVE LIFT | LOBE SEP. | DESCRIPTION | |
{| class="wikitable"
|---|---|---|---|---|---|---|---|
! rowspan="2" | ID NUMBER
| @.050 | ADV. | ||||||
! rowspan="2" | ?
| C.556.S | INTAKE | 213? | 266? | .312 | .468 | 109 | MILD PERFORMANCE |
! colspan="2" | DURATION
| EXHAUST | 213? | 266? | .312 | .468 | No caps or springs required | ||
! rowspan="2" | CAM LIFT
| C.540.S | INTAKE | 205? | 256? | .327 | .491 | 109 | MILD PERFORMANCE |
! rowspan="2" | VALVE LIFT
| EXHAUST | 205? | 256? | .327 | .491 | ? GOOD WITH AUTO & F.I ? | ||
! rowspan="2" | LOBE SEP.
| C.542.S. | INTAKE | 224? | 280? | .340 | .510 | 108 | PERFORMANCE |
! rowspan="2" | DESCRIPTION
| EXHAUST | 224? | 280? | .340 | .510 | Best all around Cam 3000-6500+ |
|-
||
! @.050
| C.557.S | INTAKE | 238? | 292? | .320 | .480 | 108 | STREET STRIP |
! ADV.
| EXHAUST | 238? | 292? | .320 | .480 | 3500 - 7000 | ||
|-
| C.543.S | INTAKE | 243? | 304? | .350 | .525 | 109 | RACE - OVAL TRACK |
| rowspan="2" | C.556.S
| EXHAUST | 243? | 304? | .350 | .525 | STRONG - 4000 - 7500+ | ||
| INTAKE
| C.575.S | INTAKE | 243? | 308? | .380 | .570 | 108 | RACE - OVAL TRACK |
| 213?
| EXHAUST | 243? | 308? | .380 | .570 | 4500 + UP |
| 266?
| .312
| .468
| rowspan="2" | 109
| MILD PERFORMANCE
|-
| EXHAUST
| 213?
| 266?
| .312
| .468
| No caps or springs required
|-
| rowspan="2" | C.540.S
| INTAKE
| 205?
| 256?
| .327
| .491
| rowspan="2" | 109
| MILD PERFORMANCE
|-
| EXHAUST
| 205?
| 256?
| .327
| .491
| ? GOOD WITH AUTO & F.I ?
|-
| rowspan="2" | C.542.S.
| INTAKE
| 224?
| 280?
| .340
| .510
| rowspan="2" | 108
| PERFORMANCE
|-
| EXHAUST
| 224?
| 280?
| .340
| .510
| Best all around Cam<br />3000-6500+
|-
| rowspan="2" | C.557.S
| INTAKE
| 238?
| 292?
| .320
| .480
| rowspan="2" | 108
| STREET STRIP
|-
| EXHAUST
| 238?
| 292?
| .320
| .480
| 3500 - 7000
|-
| rowspan="2" | C.543.S
| INTAKE
| 243?
| 304?
| .350
| .525
| rowspan="2" | 109
| RACE - OVAL TRACK
|-
| EXHAUST
| 243?
| 304?
| .350
| .525
| STRONG - 4000 - 7500+
|-
| rowspan="2" | C.575.S
| INTAKE
| 243?
| 308?
| .380
| .570
| rowspan="2" | 108
| RACE - OVAL TRACK
|-
| EXHAUST
| 243?
| 308?
| .380
| .570
| 4500 + UP
|}


PLEASE NOTE: ALL PROFILES FROM C.540.S + UP REQUIRE CAPS AND SPRINGS
PLEASE NOTE: ALL PROFILES FROM C.540.S + UP REQUIRE CAPS AND SPRINGS
Line 64: Line 318:
All profiles are available on new Chilled Cast Iron Billets. When ordering, specify if you want a solid core billet (external oiling) or a rifle drilled billet (internal oiling). You can also specify a different lobe separation angle for no extra charge.
All profiles are available on new Chilled Cast Iron Billets. When ordering, specify if you want a solid core billet (external oiling) or a rifle drilled billet (internal oiling). You can also specify a different lobe separation angle for no extra charge.


| Profile | Seat Duration | .050" Duration | Gross Valve Lift | Lobe Separation |
{| class="wikitable"
|---|---|---|---|---|
! Profile
| Stage 1L street | 280? | 232? | .450" | 110? |
! Seat Duration
| Stage 2L street | 285? | 237? | .450" | 110? |
! .050" Duration
| Stage 3 race | 300? I / 290? E | 262? I / 253? E | .535" I / .515" E | 104? |
! Gross Valve Lift
| Stage 4 race | 310? I / 300? E | 271? I / 262? E | .555" I / .535" E | 104? |
! Lobe Separation
|-
| Stage 1L street
| 280?
| 232?
| .450"
| 110?
|-
| Stage 2L street
| 285?
| 237?
| .450"
| 110?
|-
| Stage 3 race
| 300? I / 290? E
| 262? I / 253? E
| .535" I / .515" E
| 104?
|-
| Stage 4 race
| 310? I / 300? E
| 271? I / 262? E
| .555" I / .535" E
| 104?
|}


For more information on these cams, please contact:
For more information on these cams, please contact:
Line 83: Line 362:
Note: All cams are measured at .050" lash.
Note: All cams are measured at .050" lash.


| Part # | Intake Lift | Exhaust Lift | Intake Duration | Exhaust Duration | Description |
{| class="wikitable"
|---|---|---|---|---|---|
! Part #
| 10-2001 | .460 | .460 | 260 | 260 | Stage I, 70-83 Z/ZX Non Turbo |
! Intake Lift
| 10-2002 | .480 | .480 | 274 | 274 | Stage II, 70-83 Z/ZX Non Turbo |
! Exhaust Lift
| 10-2003 | .460 | .460 | 270 | 280 | Stage III, 70-83 Z/ZX Non Turbo |
! Intake Duration
| 10-2004 | .495 | .495 | 290 | 290 | Stage IV, 70-83 Z/ZX Non Turbo |
! Exhaust Duration
| 10-2005 | .560 | .560 | 300 | 300 | Stage V, 70-83 Z/ZX Non Turbo |
! Description
| 10-2006 | .620 | .624 | 304 | 318 | Stage VI, 70-83 Z/ZX Non Turbo |
|-
| 10-0921 | .460 | .440 | 260 | 250 | Turbo Stage I, 81-82 280ZX Turbo |
| 10-2001
| 10-0923 | .460 | .440 | 260 | 250 | Turbo Stage I, 83 280ZX Turbo |
| .460
| 10-0922 | .460 | .460 | 270 | 260 | Turbo Stage II, 81-82 280ZX Turbo |
| .460
| 10-0924 | .460 | .460 | 270 | 260 | Turbo Stage II, 83 280ZX Turbo |
| 260
| 260
| Stage I, 70-83 Z/ZX Non Turbo
|-
| 10-2002
| .480
| .480
| 274
| 274
| Stage II, 70-83 Z/ZX Non Turbo
|-
| 10-2003
| .460
| .460
| 270
| 280
| Stage III, 70-83 Z/ZX Non Turbo
|-
| 10-2004
| .495
| .495
| 290
| 290
| Stage IV, 70-83 Z/ZX Non Turbo
|-
| 10-2005
| .560
| .560
| 300
| 300
| Stage V, 70-83 Z/ZX Non Turbo
|-
| 10-2006
| .620
| .624
| 304
| 318
| Stage VI, 70-83 Z/ZX Non Turbo
|-
| 10-0921
| .460
| .440
| 260
| 250
| Turbo Stage I, 81-82 280ZX Turbo
|-
| 10-0923
| .460
| .440
| 260
| 250
| Turbo Stage I, 83 280ZX Turbo
|-
| 10-0922
| .460
| .460
| 270
| 260
| Turbo Stage II, 81-82 280ZX Turbo
|-
| 10-0924
| .460
| .460
| 270
| 260
| Turbo Stage II, 83 280ZX Turbo
|}


== (JWT) Jim Wolf Technology ==
== (JWT) Jim Wolf Technology ==


| Part Number | Intake Lift | Exhaust Lift | Intake Duration | Exhaust Duration | Lobe Sep. |
{| class="wikitable"
|---|---|---|---|---|---|
! Part Number
| A280Z-00C1M | .475" | .475" | 256 | 256 | 112 |
! Intake Lift
! Exhaust Lift
! Intake Duration
! Exhaust Duration
! Lobe Sep.
|-
| A280Z-00C1M
| .475"
| .475"
| 256
| 256
| 112
|}


NOTE: Duration measured @ .010. Also, not to be used in '83 P90a Hydraulic Cylinder heads.
NOTE: Duration measured @ .010. Also, not to be used in '83 P90a Hydraulic Cylinder heads.
Line 106: Line 463:
== Crane Cams ==
== Crane Cams ==


| Part Number | Advertised Duration Intake / Exhaust |
{| class="wikitable"
Duration @ .050 Intake / Exhaust |
! Part Number
Lift Intake / Exhaust |
! Advertised Duration<br />Intake / Exhaust
Lobe Separation | Description |
! Duration @ .050<br />Intake / Exhaust
|---|---|---|---|---|---|
! Lift<br />Intake / Exhaust
| DA-282-2-10 | 282 / 292 | 236 / 246 | .450 / .450 | 110 | Fair idle. Good mid range. Compression ratio required 10.5-12:1. |
! Lobe Separation
! Description
|-
| DA-282-2-10
| 282 / 292
| 236 / 246
| .450 / .450
| 110
| Fair idle. Good mid range. Compression ratio required 10.5-12:1.
|}


== Schneider Cams ==
== Schneider Cams ==


| Part # | Intake Duration (ADV) |
{| class="wikitable"
Exhaust Duration (ADV) |
! Part #
Intake Duration (.050") |
! Intake Duration<br />(ADV)
Exhaust Duration (.050") |
! Exhaust Duration<br />(ADV)
Intake Valve Lift |
! Intake Duration<br />(.050")
Exhaust Valve Lift |
! Exhaust Duration<br />(.050")
Lobe Separation |
! Intake Valve<br />Lift
|---|---|---|---|---|---|---|---|
! Exhaust Valve<br />Lift
| 17030 | 260 | 260 | 220 | 220 | .460 | .460 | 107 |
! Lobe<br />Separation
| 17032 | 260 | 270 | 220 | 230 | .460 | .460 | 107 |
|-
| 17033 | 274 | 274 | 215 | 215 | .480 | .480 | 107 |
| 17030
| 17034 | 270 | 280 | 232 | 240 | .460 | .460 | 107 |
| 260
| 17035 | 284 | 294 | 240 | 244 | .480 | .480 | 107 |
| 260
| 17036 | 290 | 290 | 244 | 244 | .495 | .495 | 106 |
| 220
| 17038 | 300 | 300 | 256 | 256 | .560 | .560 | 106 |
| 220
| 17039 | 304 | 318 | 268 | 272 | .620 | .624 | 104 |
| .460
| 17040 | 314 | 314 | 268 | 268 | .592 | .592 | 106 |
| .460
| 17042 | 260 | 250 | 220 | 210 | .460" | .460" | 114 |
| 107
| 17043 | 270 | 260 | 230 | 220 | .460" | .460" | 114 |
|-
| 17044 | 284 | 270 | 238 | 238 | .488" | .488" | 114 |
| 17032
| 260
| 270
| 220
| 230
| .460
| .460
| 107
|-
| 17033
| 274
| 274
| 215
| 215
| .480
| .480
| 107
|-
| 17034
| 270
| 280
| 232
| 240
| .460
| .460
| 107
|-
| 17035
| 284
| 294
| 240
| 244
| .480
| .480
| 107
|-
| 17036
| 290
| 290
| 244
| 244
| .495
| .495
| 106
|-
| 17038
| 300
| 300
| 256
| 256
| .560
| .560
| 106
|-
| 17039
| 304
| 318
| 268
| 272
| .620
| .624
| 104
|-
| 17040
| 314
| 314
| 268
| 268
| .592
| .592
| 106
|-
| 17042
| 260
| 250
| 220
| 210
| .460"
| .460"
| 114
|-
| 17043
| 270
| 260
| 230
| 220
| .460"
| .460"
| 114
|-
| 17044
| 284
| 270
| 238
| 238
| .488"
| .488"
| 114
|}


Part numbers 17042, 17043, 17044 are Turbo Grinds.
Part numbers 17042, 17043, 17044 are Turbo Grinds.
Line 140: Line 604:
== Web Cams ==
== Web Cams ==


| Duration (ADV) | Duration @ 0.050" |
{| class="wikitable"
Valve Lift | Regrind Part # |
! Duration (ADV)
New Cam Part # |
! Duration<br />@ 0.050"
Description |
! Valve Lift
|---|---|---|---|---|---|
! Regrind<br />Part #
| 248°/248° | 230°/230° | .430" / .430" | 20-000 | 20-002 | Offers improved mid range and top end, for use in stock or modified engines. Lash caps required. |
! New Cam<br />Part #
| 260°/260° | 238°/238° | .450" / .450" | 20-050 | 20-052 | Strong mid and top end power for street / strip. Lash caps required. |
! Description
| 252°/252° | 230°/230° | .488" / .488" | 20-010 | 20-012 | Very broad power band, good all around cam. Requires performance valve springs and lash caps. |
|-
| 262°/262° | 240°/240° | .488" / .488" | 20-020 | 20-022 | Good mid range and top end power for hot street cars with modified engines. Lash caps required. |
| 248°/248°
| 266°/266° | 246°/246° | .510" / .510" | N/A | 20-032 | Strong mid range and top end power for rally and off-road racing engines. Lash caps required. |
| 230°/230°
| 304°/304° | 284°/284° | .585" / .585" | N/A | 20-042 | Special racing profile. Tremendous top end power. Competition use only! Lash caps required. |
| .430" / .430"
| 20-000
| 20-002
| Offers improved mid range and top end, for use in stock or modified engines. Lash caps required.
|-
| 260°/260°
| 238°/238°
| .450" / .450"
| 20-050
| 20-052
| Strong mid and top end power for street / strip. Lash caps required.
|-
| 252°/252°
| 230°/230°
| .488" / .488"
| 20-010
| 20-012
| Very broad power band, good all around cam. Requires performance valve springs and lash caps.
|-
| 262°/262°
| 240°/240°
| .488" / .488"
| 20-020
| 20-022
| Good mid range and top end power for hot street cars with modified engines. Lash caps required.
|-
| 266°/266°
| 246°/246°
| .510" / .510"
| N/A
| 20-032
| Strong mid range and top end power for rally and off-road racing engines. Lash caps required.
|-
| 304°/304°
| 284°/284°
| .585" / .585"
| N/A
| 20-042
| Special racing profile. Tremendous top end power. Competition use only! Lash caps required.
|}


== ISKY Cams ==
== ISKY Cams ==


| 240/260 Part # |
{| class="wikitable"
280 Part # |
! 240/260<br />Part #
Valve Lift | Advertised Duration |
! 280<br />Part #
Duration @ .050" |
! Valve Lift
Description |
! Advertised<br />Duration
|---|---|---|---|---|---|
! Duration<br />@ .050"
| 715147 | 718147 | .475" | 270 | 222 | Stage I |
! Description
| 715148 | 718148 | .480" | 280 | 232 | Stage II |
|-
| 715149 | 718149 | .490" | 290 | 242 | Stage III |
| 715147
| 715196 | 718196 | .530" | 306 | 264 | Competition? |
| 718147
| 715127 | 718127 | .595" | 306 | 274 | Competition |
| .475"
| 270
| 222
| Stage I
|-
| 715148
| 718148
| .480"
| 280
| 232
| Stage II
|-
| 715149
| 718149
| .490"
| 290
| 242
| Stage III
|-
| 715196
| 718196
| .530"
| 306
| 264
| Competition?
|-
| 715127
| 718127
| .595"
| 306
| 274
| Competition
|}


== Comp Cams ==
== Comp Cams ==


| Part Number | Adv Duration Intake / Exhaust |
{| class="wikitable"
Duration @ .050 Intake / Exhaust |
! Part Number
Valve Lift Intake / Exhaust |
! Adv Duration<br />Intake / Exhaust
Lobe Sep | Description |
! Duration @ .050<br />Intake / Exhaust
|---|---|---|---|---|---|
! Valve Lift<br />Intake / Exhaust
| 84-115-4 | 240 / 240 | 194 / 194 | .400" / .400" | 110 | Good OEM Replacement |
! Lobe Sep
| 84-119-4 | 252 / 252 | 204 / 204 | .410" / .410" | 110 | Better Torque & Power than OEM Cam. Smooth Idle |
! Description
| 84-123-4 | 260 / 260 | 214 / 214 | .420" / .420" | 110 | Street Performance. Wide Power band. Smooth Idle |
|-
| 84-131-4 | 280 / 280 | 236 / 236 | .460" / .460" | 110 | Serious Street or mild Race Cam. Strong Mid Range and Good Top end. |
| 84-115-4
| 84-135-4 | 292 / 292 | 246 / 246 | .480" / .480" | 110 | Serous Road Race cam. Strong top end. |
| 240 / 240
| 194 / 194
| .400" / .400"
| 110
| Good OEM Replacement
|-
| 84-119-4
| 252 / 252
| 204 / 204
| .410" / .410"
| 110
| Better Torque & Power than OEM Cam. Smooth Idle
|-
| 84-123-4
| 260 / 260
| 214 / 214
| .420" / .420"
| 110
| Street Performance. Wide Power band. Smooth Idle
|-
| 84-131-4
| 280 / 280
| 236 / 236
| .460" / .460"
| 110
| Serious Street or mild Race Cam. Strong Mid Range and Good Top end.
|-
| 84-135-4
| 292 / 292
| 246 / 246
| .480" / .480"
| 110
| Serous Road Race cam. Strong top end.
|}


=== Sources Used ===
=== Sources Used ===

Latest revision as of 22:48, 20 October 2026

Imported page. This page was converted from an archived copy of "XenonZcar" (Xenonzcar, fetched 2026-05-15). The conversion was mechanical, so tables, links and formatting may contain conversion artefacts. Compare against the archived copy if something looks wrong. The content belongs to its original authors.

S30 Camshaft Specifications[edit]

L-Series Camshaft Specifications[edit]

During its thirteen-year lifespan in the Z series, the L Series motors came with a variety of camshafts. The chart below will help you identify your camshaft specifications, including some common aftermarket options.

Quick Links[edit]

Stock Specs[edit]

Engine L24 L26 L28 L28E L28E L28ET L28ET L28ET L24E
Head E31/E88 E88 N42/N47, P79 P79 P90 P90 P90A N47
Cam Mark A C A F B J M E
Applied Date All All Before 8/81 9/81 and After Auto Before 7/82 Manual Before 7/82 All after 8/82 All
Part # 13001-XXXXX E4126 N3626 E4126 P7980 P3026 P9580 P9980 S6280
Intake Duration 248 256 248 240 240 240 240 240
Deg BTC Intake Opens 16 20 16 16 12 12 16 22
Deg ABC Intake Closes 52 56 52 44 48 48 44 38
Int Center Angle 18 18 18 14 18 18 14 8
Exhaust Duration 248 256 248 248 248 240 240 240
BBC Exhaust Opens 54 58 54 58 54 52 54 54
ATC Exhaust Closes 14 18 14 10 14 8 6 6
Exhaust Center Angle 20 20 20 24 20 22 24 24
Lobe Centers 109 109 109 109 109 110 109 106
Cam Lift Intake 0.289 0.276 0.289 0.276 0.276 0.276 0.266 0.276
Cam Lift Exhaust 0.289 0.289 0.289 0.289 0.289 0.276 0.264 0.276
Valve Lift Intake 0.413 0.394 0.413 0.394 0.394 0.394 0.378 0.394
Valve Lift Exhaust 0.409 0.409 0.409 0.409 0.409 0.39 0.374 0.39

Aftermarket cams[edit]

There are many different Manufactures that are making new or Regrind cams for the L-Series motors. Below you will find some of these cams and their specifications.

Colt Cams[edit]

ID NUMBER ? DURATION CAM LIFT VALVE LIFT LOBE SEP. DESCRIPTION
@.050 ADV.
C.556.S INTAKE 213? 266? .312 .468 109 MILD PERFORMANCE
EXHAUST 213? 266? .312 .468 No caps or springs required
C.540.S INTAKE 205? 256? .327 .491 109 MILD PERFORMANCE
EXHAUST 205? 256? .327 .491 ? GOOD WITH AUTO & F.I ?
C.542.S. INTAKE 224? 280? .340 .510 108 PERFORMANCE
EXHAUST 224? 280? .340 .510 Best all around Cam
3000-6500+
C.557.S INTAKE 238? 292? .320 .480 108 STREET STRIP
EXHAUST 238? 292? .320 .480 3500 - 7000
C.543.S INTAKE 243? 304? .350 .525 109 RACE - OVAL TRACK
EXHAUST 243? 304? .350 .525 STRONG - 4000 - 7500+
C.575.S INTAKE 243? 308? .380 .570 108 RACE - OVAL TRACK
EXHAUST 243? 308? .380 .570 4500 + UP

PLEASE NOTE: ALL PROFILES FROM C.540.S + UP REQUIRE CAPS AND SPRINGS

F.I. WILL WORK WITH C.542.S WITH HIGHER COMPRESSION AND A WIDER LOBE SEPARATION

Integral Cams[edit]

The stage 1L - 2L performance cams are designed to work with the stock valve springs to 7000 RPM. The stage 3 - 4 road race cams require performance valve springs.

All profiles are available on new Chilled Cast Iron Billets. When ordering, specify if you want a solid core billet (external oiling) or a rifle drilled billet (internal oiling). You can also specify a different lobe separation angle for no extra charge.

Profile Seat Duration .050" Duration Gross Valve Lift Lobe Separation
Stage 1L street 280? 232? .450" 110?
Stage 2L street 285? 237? .450" 110?
Stage 3 race 300? I / 290? E 262? I / 253? E .535" I / .515" E 104?
Stage 4 race 310? I / 300? E 271? I / 262? E .555" I / .535" E 104?

For more information on these cams, please contact:

Integral Cams, LLC

[(507) 645-9308](tel:5076459308)

Motorsport Auto[edit]

The cams offered by Motorsport Auto are quality pieces with cam profiles designed specifically for a Z's requirements.

Note: All cams are measured at .050" lash.

Part # Intake Lift Exhaust Lift Intake Duration Exhaust Duration Description
10-2001 .460 .460 260 260 Stage I, 70-83 Z/ZX Non Turbo
10-2002 .480 .480 274 274 Stage II, 70-83 Z/ZX Non Turbo
10-2003 .460 .460 270 280 Stage III, 70-83 Z/ZX Non Turbo
10-2004 .495 .495 290 290 Stage IV, 70-83 Z/ZX Non Turbo
10-2005 .560 .560 300 300 Stage V, 70-83 Z/ZX Non Turbo
10-2006 .620 .624 304 318 Stage VI, 70-83 Z/ZX Non Turbo
10-0921 .460 .440 260 250 Turbo Stage I, 81-82 280ZX Turbo
10-0923 .460 .440 260 250 Turbo Stage I, 83 280ZX Turbo
10-0922 .460 .460 270 260 Turbo Stage II, 81-82 280ZX Turbo
10-0924 .460 .460 270 260 Turbo Stage II, 83 280ZX Turbo

(JWT) Jim Wolf Technology[edit]

Part Number Intake Lift Exhaust Lift Intake Duration Exhaust Duration Lobe Sep.
A280Z-00C1M .475" .475" 256 256 112

NOTE: Duration measured @ .010. Also, not to be used in '83 P90a Hydraulic Cylinder heads.

Crane Cams[edit]

Part Number Advertised Duration
Intake / Exhaust 		Duration @ .050
Intake / Exhaust 		Lift
Intake / Exhaust 		Lobe Separation Description
DA-282-2-10 282 / 292 236 / 246 .450 / .450 110 Fair idle. Good mid range. Compression ratio required 10.5-12:1.

Schneider Cams[edit]

Part # Intake Duration
(ADV) 		Exhaust Duration
(ADV) 		Intake Duration
(.050") 		Exhaust Duration
(.050") 		Intake Valve
Lift 		Exhaust Valve
Lift 		Lobe
Separation
17030 260 260 220 220 .460 .460 107
17032 260 270 220 230 .460 .460 107
17033 274 274 215 215 .480 .480 107
17034 270 280 232 240 .460 .460 107
17035 284 294 240 244 .480 .480 107
17036 290 290 244 244 .495 .495 106
17038 300 300 256 256 .560 .560 106
17039 304 318 268 272 .620 .624 104
17040 314 314 268 268 .592 .592 106
17042 260 250 220 210 .460" .460" 114
17043 270 260 230 220 .460" .460" 114
17044 284 270 238 238 .488" .488" 114

Part numbers 17042, 17043, 17044 are Turbo Grinds.

Web Cams[edit]

Duration (ADV) Duration
@ 0.050" 		Valve Lift Regrind
Part # 		New Cam
Part # 		Description
248°/248° 230°/230° .430" / .430" 20-000 20-002 Offers improved mid range and top end, for use in stock or modified engines. Lash caps required.
260°/260° 238°/238° .450" / .450" 20-050 20-052 Strong mid and top end power for street / strip. Lash caps required.
252°/252° 230°/230° .488" / .488" 20-010 20-012 Very broad power band, good all around cam. Requires performance valve springs and lash caps.
262°/262° 240°/240° .488" / .488" 20-020 20-022 Good mid range and top end power for hot street cars with modified engines. Lash caps required.
266°/266° 246°/246° .510" / .510" N/A 20-032 Strong mid range and top end power for rally and off-road racing engines. Lash caps required.
304°/304° 284°/284° .585" / .585" N/A 20-042 Special racing profile. Tremendous top end power. Competition use only! Lash caps required.

ISKY Cams[edit]

240/260
Part # 		280
Part # 		Valve Lift Advertised
Duration 		Duration
@ .050" 		Description
715147 718147 .475" 270 222 Stage I
715148 718148 .480" 280 232 Stage II
715149 718149 .490" 290 242 Stage III
715196 718196 .530" 306 264 Competition?
715127 718127 .595" 306 274 Competition

Comp Cams[edit]

Part Number Adv Duration
Intake / Exhaust 		Duration @ .050
Intake / Exhaust 		Valve Lift
Intake / Exhaust 		Lobe Sep Description
84-115-4 240 / 240 194 / 194 .400" / .400" 110 Good OEM Replacement
84-119-4 252 / 252 204 / 204 .410" / .410" 110 Better Torque & Power than OEM Cam. Smooth Idle
84-123-4 260 / 260 214 / 214 .420" / .420" 110 Street Performance. Wide Power band. Smooth Idle
84-131-4 280 / 280 236 / 236 .460" / .460" 110 Serious Street or mild Race Cam. Strong Mid Range and Good Top end.
84-135-4 292 / 292 246 / 246 .480" / .480" 110 Serous Road Race cam. Strong top end.

Sources Used[edit]

  • 1970-1983 Datsun 240z-260z-280z-280zx Factory Service Manuals
  • ISKY CAMS
  • WEB CAMS
  • SCHNEIDER CAMS
  • CRANE CAMS
  • JIM WOLF TECHNOLOGY
  • MOTORSPORT AUTO
  • INTEGRAL CAMS
  • COLT CAMS
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