the lsj intake and exhaust cams are ground from l61 intake blanks my2006

ECOtec CAMSHAFT INFO SHEET
This sheet provides basic information regarding production camshafts used in the ECOtec engines listed below. This information is accurate as of November, 2006. GM reserves the right to change specifications and part numbers without notice.
Engine (usage) Displace- ment
Bore x Stroke
CR:1 Fuel Induction Hp @ rpm
Tq @ rpm
L61 (Saturn ION & VUE; Chevy Cobalt & HHR, Pontiac G5)
2.2L 86 x 94.6mm 10.0 SFI Naturally aspirated
148 @ 5600
152 @ 4200
LE5 (Saturn ION & Sky, Chevy Cobalt SS & HHR, Pontiac G5 GT, G6, & Solstice)
2.4L 86 x 98mm 10.4 SFI Naturally aspirated
173 @ 6200
163 @ 4800
LSJ (Saturn ION Redline, Chevy Cobalt SS SC)
2.0L 86 x 86mm 9.5 SFI Supercharged 205 @ 5600
200 @ 4400
LNF (Pontiac Solstice GXP, Saturn Sky Redline)
2.0L 86 x 86mm 9.2 DI Turbocharged 260 @ 5300 260 @ 2500
Production ECOtec Camshaft Specifications:
INTAKE Cam Valve Valve Duration Valve area Part Peak Lift Peak Lift Timing @1mm lash @1mm lash 12587985 - LSJ 5.9557 10.03790354 100 196.50 1117.70 12590699 - ’07 L61 5.9804 10.07953361 116 198.40 1112.90 12578511 - LE5 6.2551 10.54252068 135 210.30 1253.30 12589335 - LNF 6.111207 10.29999939 126 203.60 1171.30

EXHAUST Cam Valve Valve Duration Valve area Part Peak Lift Peak Lift Timing @1mm lash @1mm lash 12584363 - LSJ 5.9543 10.04392819 -115 191.70 1076.40 12590700 - ’07 L61 5.9752 10.07918306 -108 193.30 1078.00 12578512 - LE5 5.95143 10.03908697 -125 195.40 1092.70 12589340 - LNF 6.106106 10.30000003 -120 194.00 1106.00

Notes regarding camshaft interchangeability: The L61 (2.2L ECOtec) camshaft changed from the 2006MY to 2007MY. This change was to go to a less aggressive cam profile with less noise, less jerk, less impact load, and better valve dynamics.
The 2007MY L61 intake cam cannot interchange with any other production ECOtec cam.
The 2007MY L61 exhaust cam is interchangeable backwards into the ‘06 L61 and with the LSJ exhaust cam.
The 2006MY L61 cams can interchange with LSJ cams, both intake and exhaust. These cams are the exact same profile, only at different timings.
The 2006MY L61 timings are 116 intake, -103 exhaust. The LSJ timings are 100 intake, -115 exhaust.
The LNF and LE5 exhaust cams could interchange. The LNF and LE5 cams are not interchangeable in any other way or with any other ECOtec cams.
Valve springs are the same across all variants, and should be upgraded for high-rpm operation or increased lift.

The GM Performance Parts ECOtec cam set (88958648 set or 88958636/7 individually) is an aggressive race cam. They are not stock-replacement cams; they require upgraded valve springs and retainers. These cams were designed for a race motor, using the ‘06 L61 as the starting point. The cams will not fit the 2.4L LE5 head and will not work with the stock ECM or lifters. They physically fit the 2.0L LSJ head,

2.0L LSJ

 Intake and exhaust cams are the same casting as each other. 
Both cams have a pressed-in hex. The hex on the exhaust cam drives a cam location sensor.  Compatible with GM Performance Parts adjustable cam gears. 
Cannot be replaced by the GM Performance Parts cam set.

This cam casting. . . . . . . . . . .also fits here (refers to fit only, does not refer to operable cam profile)

GMPP Adj Cam gears L61 and LSJ
GMPP Intake, cast L61 Intake thru ‟06 , LSJ Intake
GMPP Exhaust, cast L61 Exhaust
GMPP Intake blank, cast LSJ Intake, L61 Intake thru „06
GMPP Exhaust blank, cast L61 Exhaust
Comp Cams Intake, billet LSJ Intake, LSJ Exhaust, L61 Intake thru „06
Comp Cams Exhaust, billet L61 Exhaust
L61 Intake thru‟06 LSJ Intake
L61 Exhaust thru‟06 none
07&later L61 Intake none
„07&later L61 Exhaust L61 Exhaust thru „06
LSJ Intake L61 Intake thru „06
LSJ Exhaust L61 Intake thru ‟06, can be cut (shortened) to fit L61 Exhaust
LE5 Intake none
LE5 Exhaust LNF Exhaust
LNF Intake none
LNF Exhaust LE5 Exhaust