XFI 243/248 Solid Roller Cam for GM LS Gen III/IV

XFI™ 243/248 Solid Roller Cam for GM LS Gen III/IV. Street/strip, superb mid and upper RPM power. Intake upgrade recommended. Programmer and valve spring upgrade required.

Available Soon
SKU
54-501-11
Available Soon items may take 2-4 weeks for delivery.
$499.95
Ever since its introduction in 1997, the Chevrolet LS1/GEN III engine has been setting the high performance world on fire with its impressive power output, remarkably low weight, and dramatic response to even minor modifications. But as with many other engines, the GEN III factory camshafts leave something to be desired. In their never-ending quest to build a better mousetrap, the camshaft design experts at COMP Cams® have added three brand-new street solid roller profiles to their already impressive lineup of GEN III-specific cams. Engineered specifically to take advantage of the phenomenal efficiency of the FAST™ LSX™ intake manifold, the newest members of the XFI™ line of GEN III camshafts deliver some of the most aggressive lobe profiles that have ever been designed for street driven Gen III-powered vehicles.The result is massive increases in horsepower output, throttle response, and upper rpm capability over factory hydraulic roller patterns.

 

P/N 54-501-11 SOLID ROLLER – Street/Strip –superb mid and upper rpm power. Intake upgrade recommended. Programmer and valve spring upgrade required.

 

XFI Street Solid Roller Camshafts for GEN III LS1, LS2, LS6

Part Number 54-501-11

 

VALVE

RPM
RANGE

DURATION

VALVE LIFT

LOBE
SEP.
ANGLE

SETTING

ADV.

@ .050”

@ 1.7:1

INT.

EXH.

INT.

EXH.

INT.

  EXH.

INT.

EXH.

.016

.018

2100-6700

278

285

243

248

.653

.648

113°

Camshaft Material:
Valve Springs Required:
Assembly Lubricant Included:
Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range: 2,100-6,700
Grind Number: XFI278R113
Cam Type: Solid Roller
Lifter Style: Solid Roller
Camshaft Series: XFI
Usage: Street/Strip
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 278
Advertised Exhaust Duration: 285
Intake Duration at .050 Inch Lift: 243
Exhaust Duration at .050 Inch Lift: 248
Intake Valve Lift: 0.653
Exhaust Valve Lift: 0.648
Lobe Lift Intake: 0.384
Lobe Lift Exhaust: 0.381
Lobe Separation: 113
Intake Centerline: 110
Exhaust Close ATDC: 28
Intake Open BTDC: 28
Exhaust Open BBDC: 77
Intake Close ABDC: 70
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159