advertised duration of stock 98 cam
10-21-2013, 06:51 PM
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advertised duration of stock 98 cam did a search,all I can find are specs at .050.lift.seems like there was a link or post here a few years ago that had detailed specs of several OE cams.
10-21-2013, 07:25 PM
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CORVETTE
LS1
Year----------PN-----------Duration @ 0.050"-----V-Lift (inch I/E)--------LSA
'97-'98.........12554170.............199/207...................0.472/0.479...............117.0
'98-'99.........12560964.............199/207...................0.472/0.479...............117.0
'00..............12560968.............198/209...................0.500/0.500...............115.5
'01-'03.........12561721.............196/207...................0.467/0.479...............116.0*
LS6
'01(385hp)...12560950.............204/211...................0.525/0.525................116.0****
'02-'04........12565308.............204/218...................0.551/0.547................117.5
LS2
'05-on..........12574519.............204/211...................0.525"/0.525"...............116.0
CAMARO/FIREBIRD
'98.............12557812.............198/209...................0.500/0.500................119.5
'99-'00........12560965.............198/209...................0.500/0.500................119.5**
'01-'02........12561721.............196/207...................0.467/0.479................116.0*
LQ4/LQ9 6.0L Truck
'99-'00........12560967............191/190...................0.457/0.466.................114.0
'01-'04[LQ4].12561721...........196/207...................0.467/0.479.................116.0*
'02-'03[LQ9].12561721...........196/207...................0.467/0.479.................116.0*
LS7
'05-on...........(TBC)................211/230..................0.593"/0.588"................(TBC)
GMPP
Hot.............12480033............219/228.................0.525/0.525...................112.0
ASA............12480110............226/236.................0.525/0.525...................110.0
* Note all same PN.
1. Base Circle of all cams is 19.7mm.
Except LS6:- 2001 is 19.3mm and 2002-on is 19.0mm
2.No base circ. info on GMPP items.
3. **This camshaft used in VT-VY2 ('98 thro' 2004 M-E export Lumina SS).
4. ****This camshaft used in LS2.
5. An LS1 cam will work in an LS2 but an LS2 cam will NOT work in an LS1 (no cam sensor cutout on rear bearing).
LS1
Year----------PN-----------Duration @ 0.050"-----V-Lift (inch I/E)--------LSA
'97-'98.........12554170.............199/207...................0.472/0.479...............117.0
'98-'99.........12560964.............199/207...................0.472/0.479...............117.0
'00..............12560968.............198/209...................0.500/0.500...............115.5
'01-'03.........12561721.............196/207...................0.467/0.479...............116.0*
LS6
'01(385hp)...12560950.............204/211...................0.525/0.525................116.0****
'02-'04........12565308.............204/218...................0.551/0.547................117.5
LS2
'05-on..........12574519.............204/211...................0.525"/0.525"...............116.0
CAMARO/FIREBIRD
'98.............12557812.............198/209...................0.500/0.500................119.5
'99-'00........12560965.............198/209...................0.500/0.500................119.5**
'01-'02........12561721.............196/207...................0.467/0.479................116.0*
LQ4/LQ9 6.0L Truck
'99-'00........12560967............191/190...................0.457/0.466.................114.0
'01-'04[LQ4].12561721...........196/207...................0.467/0.479.................116.0*
'02-'03[LQ9].12561721...........196/207...................0.467/0.479.................116.0*
LS7
'05-on...........(TBC)................211/230..................0.593"/0.588"................(TBC)
GMPP
Hot.............12480033............219/228.................0.525/0.525...................112.0
ASA............12480110............226/236.................0.525/0.525...................110.0
* Note all same PN.
1. Base Circle of all cams is 19.7mm.
Except LS6:- 2001 is 19.3mm and 2002-on is 19.0mm
2.No base circ. info on GMPP items.
3. **This camshaft used in VT-VY2 ('98 thro' 2004 M-E export Lumina SS).
4. ****This camshaft used in LS2.
5. An LS1 cam will work in an LS2 but an LS2 cam will NOT work in an LS1 (no cam sensor cutout on rear bearing).