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SOLID ROLLER<br />
36<br />
SOLID ROLLER<br />
HIGH ENERGY STREET ROLLER<br />
Designed specifically for street use, these street rollers offer unique approach ramps, allowing the use of lower seat<br />
pressure to assure long life. These lobes are very "throaty" because of the opening and closing ramp designs.<br />
CAMSHAFT TYPE<br />
High Energy <br />
Street Roller<br />
Rated Duration @<br />
.015” Tappet Lift<br />
XTREME ENERGY STREET ROLLER<br />
This newest addition to the Xtreme family of lobes delivers the responsiveness, torque and reliability only available<br />
with <strong>COMP</strong> <strong>Cam</strong>s ® Xtreme designs, coupled with the high rpm power of modern race roller designs. Our development<br />
test included Spintron ® dynamics evaluations, engine dyno testing, chassis dyno testing and three Hot Rod<br />
Power Tours. Coupled with <strong>COMP</strong>’s Endure-X Roller Lifters, these profiles brought street roller technology into the<br />
new millennium.<br />
CAMSHAFT TYPE<br />
Standard Ratio<br />
Xtreme Energy <br />
Street<br />
Rated Duration @<br />
.015” Tappet Lift<br />
High Ratio Designs<br />
Xtreme Energy <br />
Street<br />
Rated Duration @<br />
.015” Tappet Lift<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 />
1496 268HER-2 224 141 .350 .068 .056 .525 .560 .595<br />
4002 272HER-2 228 144 .350 .073 .061 .525 .560 .595<br />
1498 276HER-2 232 148 .350 .078 .066 .525 .560 .595<br />
1474 280HER-2 236 152 .366 .085 .072 .550 .586 .623<br />
1476 288HER-4 244 158 .366 .098 .084 .550 .586 .623<br />
4220 300HER-2 255 170 .383 .119 .104 .575 .613 .651<br />
4221 308HER-4 262 176 .383 .130 .115 .575 .613 .651<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 />
4870 256XSR 218 141 .360 .056 .045 .540 .576 .612<br />
4871 262XSR 224 147 .360 .066 .053 .540 .576 .612<br />
4872 268XSR 230 153 .368 .076 .062 .552 .589 .626<br />
4873 274XSR 236 159 .376 .087 .072 .564 .602 .639<br />
4874 280XSR 242 164 .380 .098 .083 .570 .608 .646<br />
4875 286XSR 248 170 .384 .110 .094 .576 .614 .653<br />
4876 292XSR 254 176 .388 .122 .106 .582 .621 .660<br />
4877 298XSR 260 181 .392 .135 .118 .588 .627 .666<br />
4878 304XSR 266 187 .398 .137 .130 .597 .637 .677<br />
4879 310XSR 272 193 .404 .159 .143 .606 .646 .687<br />
4850 259 219 131 .330 .055 .045 .495 .528 .561<br />
4851 265 225 136 .330 .064 .053 .495 .528 .561<br />
4855 267 227 138 .330 .067 .055 .495 .528 .561<br />
4854 270 230 140 .330 .070 .058 .495 .528 .561<br />
4852 274 234 144 .330 .076 .064 .495 .528 .561<br />
4853 280 240 149 .335 .086 .053 .503 .536 .570<br />
4856 284 244 152 .335 .092 .079 .503 .536 .570<br />
4857 288 248 155 .335 .099 .085 .503 .536 .570<br />
4858 292 252 161 .346 .106 .092 .519 .554 .588<br />
4859 296 256 164 .346 .112 .099 .519 .554 .588<br />
4860 300 260 167 .346 .119 .105 .519 .554 .588<br />
4861 308 268 173 .346 .132 .118 .519 .554 .588<br />
1 . 8 0 0 . 9 9 9 . 0 8 5 3
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