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HYDRAULIC ROLLER<br />
18<br />
HYDRAULIC ROLLER<br />
XTREME ENERGY XE-R FOR LS1<br />
The XE-R designs are our most aggressive hydraulic roller ramps to date. They are quicker off and on the seat<br />
than the original Xtreme Energy series, yet they are still stable with rigid valve train and optimized spring selection.<br />
These profiles provide even more area than the comparable Small Block Chevrolet designs that are often used by<br />
other companies to "grow" a more aggressive lobe for LS1 applications.<br />
CAMSHAFT TYPE<br />
Xtreme Energy <br />
XE-R for LS1<br />
Rated Duration @<br />
.006” Tappet Lift<br />
LS1 55mm Journal<br />
CHEATER HR LIFT RULE <strong>COMP</strong>ETITION HYDRAULIC ROLLERS<br />
The Cheater HR Lift Rule profiles can be run with either hydraulic roller lifters or with solid roller lifters and tight<br />
(0.010" to 0.016") lash settings. These are very popular in Mustang lift rule class racing. These lobes are very<br />
aggressive and are "race only" designed lobes.<br />
CAMSHAFT TYPE<br />
Cheater HR Lift Rule<br />
Rated Duration @<br />
.006” Tappet Lift<br />
Race Only!<br />
LOBE RATED DURATION IN LOBE TAPPET LIFT @ THEORETICAL VALVE LIFT<br />
NUMBER DURATION DEGREES LIFT TDC @ “0” LASH ROCKER ARM RATIO<br />
@ .050” @ .200” 106° 110° 1.5 1.6 1.7<br />
3720 269 220 143 .342 .062 .049 .513 .547 .581<br />
3721 271 222 144 .342 .065 .052 .513 .547 .581<br />
3722 273 224 146 .342 .069 .055 .513 .547 .581<br />
3723 275 226 147 .344 .073 .059 .516 .550 .585<br />
3724 277 228 149 .346 .076 .062 .519 .554 .588<br />
3725 279 230 151 .348 .080 .065 .522 .557 .592<br />
3726 281 232 153 .350 .083 .069 .525 .560 .595<br />
3727 283 234 155 .352 .087 .072 .528 .563 .598<br />
3728 285 236 157 .354 .091 .076 .531 .566 .602<br />
3729 287 238 159 .356 .095 .079 .534 .570 .605<br />
3730 289 240 161 .358 .099 .083 .537 .573 .609<br />
3731 291 242 163 .359 .102 .087 .539 .574 .610<br />
3732 293 244 165 .360 .106 .091 .540 .576 .612<br />
3733 295 246 167 .361 .110 .095 .542 .578 .614<br />
3734 297 248 169 .362 .114 .098 .543 .579 .615<br />
LOBE RATED DURATION IN LOBE TAPPET LIFT @ THEORETICAL VALVE LIFT<br />
NUMBER DURATION DEGREES LIFT TDC @ “0” LASH ROCKER ARM RATIO<br />
@ .050” @ .200” 106° 110° 1.5 1.6 1.7<br />
3390 289 236 148 .312 .085 .072 .468 .499 .530<br />
3391 291 238 150 .312 .088 .075 .468 .499 .530<br />
3392 293 240 152 .312 .091 .078 .468 .499 .530<br />
3393 295 242 154 .312 .095 .081 .468 .499 .530<br />
3394 297 244 156 .312 .098 .085 .468 .499 .530<br />
3395 299 246 158 .312 .102 .088 .468 .499 .530<br />
3396 301 248 160 .312 .105 .091 .468 .499 .530<br />
3397 303 250 162 .312 .109 .095 .468 .499 .530<br />
3335 321 268 180 .312 .142 .127 .468 .499 .530<br />
3336 307 254 166 .316 .116 .102 .474 .506 .537<br />
3338 311 258 170 .316 .123 .109 .474 .506 .537<br />
3337 319 266 178 .316 .138 .123 .474 .506 .537<br />
3339 329 270 182 .316 .146 .139 .474 .506 .537<br />
3284 307 254 167 .323 .116 .102 .485 .517 .549<br />
3282 311 258 171 .323 .124 .109 .485 .517 .549<br />
3285 319 266 179 .323 .139 .124 .485 .517 .549<br />
3283 323 270 183 .323 .146 .131 .485 .517 .549<br />
3299 289 236 150 .329 .085 .072 .494 .526 .559<br />
3297 297 244 158 .329 .098 .085 .494 .526 .559<br />
3298 305 252 166 .329 .113 .098 .494 .526 .559<br />
3295 297 244 159 .334 .099 .085 .501 .534 .568<br />
3296 301 248 163 .334 .106 .092 .501 .534 .568<br />
3404 285 232 147 .341 .078 .065 .512 .546 .580<br />
3400 289 236 151 .341 .085 .072 .512 .546 .580<br />
3398 293 240 155 .341 .091 .078 .512 .546 .580<br />
1 . 8 0 0 . 9 9 9 . 0 8 5 3
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