Comp 624-524-13 XFI™ AFM 270PIIHR17 • GM Gen V (LT1/L83/L86)

Comp 624-524-13  XFI™ AFM 270PIIHR17 • GM Gen V (LT1/L83/L86)

Increase TQ & HP Throughout RPM Range with XFI™ AFM Cams for GM Gen V

Revolutionary GM Gen V Camshafts from COMP Cams® are designed to work with the direct injection, VVT (Variable Valve Timing) and AFM (Active Fuel Management) lifters featured in GM’s Gen V (LT1/L83/L86) V8 engine. This means that these XFI™ series hydraulic roller cams allow users to leverage the OE technology for performance gains. Gen V Cams feature four different lobe profiles to both create AFM compatibility and optimize intake and exhaust valve opening/closing events. COMP Cams® GM Gen V Camshafts increase torque and horsepower throughout the entire RPM range, while providing excellent responsiveness and mid-range power over stock for across-the-board gains.

These cams must have the COMP® Phaser Limiter Kit (Part #5456), which limits the range of camshaft movement from 62 to 22 crank degrees thus requiring PCM tuning. COMP Cams® GM Gen V Camshafts are available for stock to highly modified applications.

 RPM Range 1800-6900  INT. EXH.
 Duration @ .050"  218° N   230° N 
220° A 232° A
 Duration @ .006" 270° N 282° N
282° A 294° A
 Lift (1.8 Rockers)  .572" N  .529" N 
.572" A  .529" A 
 Lobe Sep. Angle 117° N
117° N


2014 C7 Corvette 2015 Escalade
2014 Silverado/Sierra 2014 Chevy SS
2015 Suburban/Yukon XL  2015 Tahoe/Yukon
  • Best Choice for Mildly Modified Gen V
  • Great All Around Performance








GM GEN V (LT1/L83/L86)




COMP Cams® tool steel cam core technology, widely seen in NASCAR, NHRA and other professional race engines, is now available for GM Gen V (LT1/L83/L86) applications. Tool steel is 30 percent stronger than the SAE 5150 or SAE 8620 cam cores typically used for LS camshafts. It allows the use of more aggressive profiles on both the direct injection (DI) fuel pump lobe and the cam lobes. The size and shape of the DI lobe is customizable to support more horsepower over the OEM design (see fuel pump lobe options below). The polygonal designs are available with three, four or five “throws” per revolution. The four-lobe option can be advanced or retarded to properly phase with the injector timing to maximize flow, reduce pressure fluctuations and minimize fuel bypass.




COMP Cams® tool steel cam cores are through-hardened, meaning that engine builders can choose virtually any combination of duration, lift, lobe separation and advance. They are superior to the traditional hardened surface of either induction-hardened or carburized steel cam cores. GM Gen V (LT1/L83/L86) Sportsman Tool Steel Camshafts are available with or without Active Fuel Management (AFM). Call for assistance in selecting the right tool steel cam for your application. Like with any VVT application, custom tuning is required.




  • Allows For More Aggressive D.I. Pump Lobe Profiles That Increase Fuel Delivery
  • Variety Of Custom Options Available – With or Without AFM or VVT
  • Tool Steel Is 30% Stronger Than Typical LS Cams




Comp 624-524-13 XFI™ AFM 270PIIHR17 • GM Gen V (LT1/L83/L86)
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  • Item #: Comp 624-524-13
  • Manufacturer: Comp Cams
  • Condition: New
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Price $428.99

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