Super Chevy
Click here to find out more!

LS Engine Performance - LS Power For Less

GM Engineers Tell Super Chevy How To Build The Best Budget LS Combos With Factory Parts.

Photography by GM Corp, Jim McCraw

PART NUMBER 12612273
2007 L92 6.2L CAM AT NOMINAL TIMING:
115.5 LDA 116 INTAKE CENTERLINE ‘NOMINAL’
(99 AT PHASER PARK)
1.70 ROCKER RATIO

Lift:      
  @Cam @Valve  
  EXHAUST: 0.294 0.500  
  INTAKE: 0.294 0.500  
Cam Timing@0.004-inch Tappet Lift:
  Open Close Adv. Duration
  EXHAUST: 69 BBDC 35 ATDC 284
  INTAKE: 8 BTDC 90 ABDC 278
Cam Timing@0.050-inch Tappet Lift:
  Open Close Duration
  EXHAUST: 38 BBDC 9 BTDC 209
  INTAKE: 18 ATDC 36 ABDC 198
PART NUMBER 12561721
116 LDA 115 INTAKE CENTERLINE.
PRODUCTION 2001 6.0L TRUCK AND 5.7L
LS1 CAR CAMSHAFT.
1.7 ROCKER RATIO
Lift:      
  @Cam @Valve  
  EXHAUST: 0.281 0.475  
  INTAKE: 0.274 0.463  
Cam Timing@0.004-inch Tappet Lift:
  Open Close Adv. Duration
  EXHAUST: 71 BBDC 33 ATDC 284
  INTAKE: 11 BTDC 87 ABDC 278
Cam Timing@0.050-inch Tappet Lift:
  Open Close Duration
  EXHAUST: 39 BBDC 12 BTDC 207
  INTAKE: 17 ATDC 33 ABDC 196
PART NUMBERS 12560950,12593206
2001 LS6 AND LS2 CAM DATA
116 LDA AND 118 INTAKE TIMING.
1.70 ROCKER RATIO
Lift:
@Cam @Valve  
EXHAUST: 0.308 0.524  
INTAKE: 0.308 0.524  
Cam Timing@0.004-inch Tappet Lift:
Open Close Adv. Duration
  EXHAUST: 65 BBDC 30 ATDC 275
  INTAKE: 9 BTDC 81 ABDC 270
Cam Timing@0.050-inch Tappet Lift:
  Open Close Duration
  EXHAUST: 37 BBDC 6 BTDC 211
  INTAKE: 18 ATDC 42 ABDC 204
Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!
Super Chevy