View Full Version : Help with cam info LS-7?
chevyandpontiac
04-13-2023, 08:35 PM
Can anyone id this cam by these numbers?
I was told it is a GM LS-7 cam
1068 main numbers
off to the side 9181
thanks for any help.
Dan
PeteLeathersac
04-13-2023, 11:01 PM
‘
Is it this cam from a couple years back or if not but same #, the participating Members may have info…
https://www.yenko.net/forum/showthread.php?p=1558884
:beers:
~ Pete
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PeteLeathersac
04-13-2023, 11:25 PM
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Lots of hits Googling indicate 9181 is ZL1 Factory Part # 3959180.
Below specs w/ L88 comparison from Post 15 @ this link…
https://www.camaros.net/threads/painting-an-l-88-motor.86841/
:beers:
~ Pete
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L-88 427 430 HP Solid flat tappet 354° int 0.562" int
(Advertised) part # 3925535 360° exh 0.584" exh
Duration @ .050 Int./Exh. 264 / 269 Degree Lobe Separation 112
Lash Hot Int./Exh. .024 .026 RPM operation 4400-7000
Open/Close @.050" Cam Lift Int./Exh. 24**** 60 70.5** 18.5
ZL-1 427 Solid flat tappet 262° int 0.580" int
@0.050 lift part # 3959180 273° exh 0.620" exh
Lobe separation angle 110°, lobe centerline 106°/114°
Intake opens/close 52 BTC/95 ABC, Exhaust 94 BBC/59ATC
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