Is there a difference in the LS1 cam from different years (98 to 2002). Just curiouse which would be the best to go with.
Thanks,
Randy
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Is there a difference in the LS1 cam from different years (98 to 2002). Just curiouse which would be the best to go with.
Thanks,
Randy
yes the specs are different from one year to the next, and the vette cam is different from the F-body
Yeah I got a '98 cam from SS (same as Z28) ...it's a 198/209 I think but it has .500" lift too.
Some years are the same and some are different, even the 6.0L has the LS1 cam in it, you can check out the reference area for more info:
Vehicle Part Number Valve In Valve Ex Duration Ex Duration IN Lobe Sep Timing
1997 LS1 Y-car 12554710 0.479 0.472 207 199 117 113/121
1998 LS1 Y-car 12554710/12560964 0.479 0.472 207 199 117 113/121
1999 LS1 Y-car 12560964 0.479 0.472 207 199 117 113/121
2000 LS1 Y-car 12560968 0.5 0.5 207 198 115.5 112/119
2001 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115
2002 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115
2003 LS1 Y-car 12561721 0.479 0.467 207 196 116 117/115
2001 LS6 Y-car 12560950 0.525 0.525 211 204 116 114/118
2002 LS6 Y-car 12565308 0.551 0.555 218 204 117.5 115/120
2003 LS6 Y-car 12565308 0.551 0.555 218 204 117.5 115/120
1998 LS1 F-car 12557812/12560965 0.5 0.5 209 198 119.5 117/122
1999 LS1 F-car 12560965 0.5 0.5 209 198 119.5 117/122
2000 LS1 F-car 12560965 0.5 0.5 209 198 119.5 117/122
2001 LS1 F-car 12561721 0.479 0.467 207 196 116 117/115
2002 LS1 F-car 12561721 0.479 0.467 207 196 116 117/115
2001 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122
2002 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122
2003 LS1 V-car 12560965 0.5 0.5 209 208 119.5 117/122
1999 LR4 12560966/12560967 0.466 0.457 190 191 115.5/114 118/113 112/116
2000 LR4 12560967 0.466 0.457 190 191 114 112/116
2001 LR4 12560967 0.466 0.457 190 191 114 112/116
2002 LR4 12560967 0.466 0.457 190 191 114 112/116
2003 LR4 12560967 0.466 0.457 190 191 114 112/116
1999 LM7 12560966/12560967 0.466 0.457 190 191 1115.5/114 118/113 112/116
2000 LM7 12560967 0.466 0.457 190 191 114 112/116
2001 LM7 12560967 0.466 0.457 190 191 114 112/116
2002 LM7 12560967 0.466 0.457 190 191 114 112/116
2003 LM7 12560967 0.466 0.457 190 191 114 112/116
2003 LM4 12560967 0.466 0.457 190 191 114 112/116
1999 LQ4 12560967 0.466 0.457 190 191 114 112/116
2000 LQ4 12560967 0.466 0.457 190 191 114 112/116
2001 LQ4 12561721 0.479 0.467 207 196 116 117/115
2002 LQ4 12561721 0.479 0.467 207 196 116 117/115
2003 LQ4 12561721 0.479 0.467 207 196 116 117/115
2002 LQ9 12561721 0.479 0.467 207 196 116 117/115
2003 LQ9 12561721 0.479 0.467 207 196 116 117/115
wow i didnt know i had the more aggressive stock cam(other than ls6)
learn something new everyday.
I thought you had a 4.3L!Quote:
Originally posted by Sleeper@Dec 8 2003, 01:51 AM
wow i didnt know i had the more aggressive stock cam(other than ls6)
learn something new everyday.
i have both :thumb:Quote:
Originally posted by GMCwantsLS1+Dec 8 2003, 12:19 PM--><div class='quotetop'>QUOTE(GMCwantsLS1 @ Dec 8 2003, 12:19 PM)</div>Quote:
<!--QuoteBegin-Sleeper
I thought you had a 4.3L! [/b]Quote:
@Dec 8 2003, 01:51 AM
wow i didnt know i had the more aggressive stock cam(other than ls6)
learn something new everyday.
IMO, excluding the Z06 cams, the 2000 Y-car cam would be the best for a truck followed by the 98 Fbod cam.
why the 2000 im curious? because of the lower lsa, cause the 98 has the 2 extra * of duration and more timing? am i reading the timing right the 98 cam has more timing? dont these new gen motors need all the timing they can get?Quote:
Originally posted by BigKID@Dec 9 2003, 01:28 PM
IMO, excluding the Z06 cams, the 2000 Y-car cam would be the best for a truck followed by the 98 Fbod cam.
:hshake:
These trucks love timing, anybody have any info on cam comparisons, that would make for some good reference material.
allen
I have the same book Allen go that list from and have been studying it all day. I am pretty clear on how to read cam specs and what each of then do, however, I am clueless to what those 'timing' numbers are. At first I was thing they were valve event timing numbers but you have four of those. Then I though they could be intake/exhaust centerlines. Anyone else have a clue?