Stock cam specs:
Type : Hydraulic roller, assembled (hollow core with pressed on lobes)
Duration : 196º intake / 196º exhaust (@ 0.050" lift)
Lift @lobe : 0.273"
with 1.6 roller rockers : 0.437"
Lobe Seperation Angle : 112º
Changes made between years:
1994-1999 : cam sync ring was a "missing tooth" design, requiring cam position sensor AC Delco PN 213-294
2000-2002 : cam sync ring was a "single tooth" design, requiring cam position sensor AC Delco PN 213-937
2003-present : cam sync ring is a 50/50 pattern of raised and lowered semi circles, requiring cam position sensor AC Delco PN 213-1533
Type : Hydraulic roller, assembled (hollow core with pressed on lobes)
Duration : 196º intake / 196º exhaust (@ 0.050" lift)
Lift @lobe : 0.273"
with 1.6 roller rockers : 0.437"
Lobe Seperation Angle : 112º
Changes made between years:
1994-1999 : cam sync ring was a "missing tooth" design, requiring cam position sensor AC Delco PN 213-294
2000-2002 : cam sync ring was a "single tooth" design, requiring cam position sensor AC Delco PN 213-937
2003-present : cam sync ring is a 50/50 pattern of raised and lowered semi circles, requiring cam position sensor AC Delco PN 213-1533
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