Phone. 760-364-4432
Fax. 760-364-3402
Email. info@leinewebercams.com
P.O. Box 335
Yucca Valley, CA 92286
EVOLUTION CAMS
PART#
VALVE LIFT
OPEN/
CLOSE
DURATION
at .020
at
.053
LOBE
CTR
TDC
LIFT
V-V
**
DESCRIPTION SPRINGS
E2* IN .475 43/61 284 250 99 .214 .244
H-S EX .475 68/36 284 250 106 .185 min
Excellent performance cam. Bolt-in if used with rev-limiter to 5800 RPM. Without rev-limiter 2EA or 2ET.

E3B* IN .502 40/67 287 253 103.5 .200 .226
H-S EX .504 78/33 291 256 112.5 .163 min
Bolt in cam designed to be used with K&F Superchargers and other root or vane type blowers.

E3S* IN .510 46/62 288 250 98 .222 .236
H-S EX .510 71/35 286 250 108 .162 min
Gives a broad power band, requires no head work.

E31* IN .510 45/67 292 256 101 .238 .258
H-S EX .512 72/38 290 256 107 .191 min
Similar to the E3S, with more top end power. No head work required, bolt in.

E4S* IN .528 45/58 283 247 96.5 .228 .228
H-S EX .528 72/30 282 247 111 .138 min
NEW - Leineweber's highest lift, bolt-in cam.

E4 IN .562 48/76 304 272 104 .291 .285
H-S EX .549 75/38 293 262 108.5 194 min
Drag racing camshaft for stroked motors. Power band developed thru the 3000-7000 RMP range.

E5B IN .543 34/59 273 242 102.5 .197 .209
H-S EX .545 70/27 277 247 111.5 .131 min
For use with K&P Super chargers as well as other root and vane type blowers. Requires head work.

E5T IN .544 29/64 273 242 107.5 .168 .187
H-S EX .544 74/23 277 247 115.5 .131 min
The most powerful turbo cam available for evolution engines. Requires head work.
E5S IN .544 40/54 274 242 97 .230 .222
H-S EX .544 68/26 274 242 111 .125 min
The ultimate camshaft for an evolution with bottom and mid-range power. Requires minor head work.
E51 IN .544 47/58 285 252 95.5 .278 .255
H-S EX .544 74/29 283 252 112.5 .144 min
Similar to the E5S, but designed for larger motors.
E5 IN .550 44/69 293 262 102.5 .267 .282
H-S EX .550 74/38 292 262 108 .211 min
Can be used for street or strip. Comes on strong in the mid-range all the way to top-end.
E6S IN .560 47/65 292 258 99 .270 .265
H-S EX .560 75/34 289 258 110.5 .172 min
NEW - Similar to E6 with more bottom & mid-range.
E6 IN .562 47/77 304 272 105 .280 .293
H-S EX .562 82/42 304 272 110 .220 min
Designed for street or strip in 90 cu. in. or larger applications.
E7S IN .577 41.5/66.5 288 257 102.5 .253 .267
H-S EX .577 71.5/35.5 287 257 108 .195 min
NEW - Similar to E7 with plenty of bottom & mid-range.
E7 IN .585 43.5/73.5 297 269 105 .275 .290
S EX .585 77/40 297 268 108 .195 min
Designed for gas bikes 90 cu. in. or larger. Has a broad power band and a wide torque range.
E8 IN .618 51/78 297 279 103.5 .313 .300
S EX .585 80/37 297 268 111.5 .203 min
Race bikes only, perfect for 90 cu. in. and larger gas dragbikes.
E9 IN .641 54/83 317 285 104.5 .327 .305
S EX .618 86/37 303 273 114.5 .199 min
All out drag racing camshaft, designed for 100 cu. in. and larger engines. Excellent fuel cam. Comes on early with nitro.

ROCKER RATIO 1.62 to 1

* BOLT IN CAMSHAFT NO HEAD WORK REQUIRED ON ENGINES HAVING NOTCHED PISTONS.

** VALVE TO VALVE CLEARANCE WITH THE VALVES ON THE SEAT

H-S INDICATES STOCK HYDRAULIC OR SOLID LIFTERS

S INDICATES SOLID LIFTERS NOTE:

JIMS or VELVA TOUCH HYDRAULIC LIFTER KIT CAN BE USED WITH ANY CAM ON THIS PAGE.