S130/cams

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During it's thirteen year lifespan in the Z series, The L Series motors came with many different Cam shafts. Below is a Chart to help you locate your Camshaft Specifications along with some After market Specs.

Stock Specs

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 | Automatic 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 | Degree BTC Intake Opens | 16 | 20 | 16 | 16 | 12 | 12 | 16 | 22 | Degrees 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 Exhust Opens | 54 | 58 | 54 | 58 | 54 | 52 | 54 | 54 | ATC Exhust Closes | 14 | 18 | 14 | 10 | 14 | 8 | 6 | 6 | Exhust 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 Exhust | 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

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

ID NUMBER | | DURATION | CAMLIFT | VALVELIFT | LOBESEP. | 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 SEPERATION

[ ]

Integral Cams

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

Profile Seat Duration .050" Duration Gross Valve Lift Lobe Separation

For more information on these cams Please contact the following:

Motorsport Auto

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

[ ]

(JWT) Jim Wolf Technology

| 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 Hyd Cyl heads.

[ ]

Crane Cams

| 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

| 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

| DURATION (ADV) | DURATION @ 0.050" | VALVE LIFT | Regrind Part Number | New Cam Part Number | 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

| 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 |