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Old 11-08-2007, 11:32 AM   #1
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Default Cam specs

I know they're posted around here somewhere, and jr's3800 just gave me some (turned out to be impossibly bogus, sorry Don) a couple days ago.

Looking for detailed specs on the S1 L67 and L27 cam. I've searched and even though I know it'* here somewhere, I haven't been able to find it.
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Old 11-13-2007, 11:51 AM   #2
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Free bump. Surprised no one has this info. I looked and looked on BC with no luck.
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Old 11-13-2007, 01:06 PM   #3
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Old 11-13-2007, 01:08 PM   #4
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Wrong series.
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Old 11-14-2007, 04:13 AM   #5
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i can get that info for u on Thursday when i go to school. we have ALLDATA and a few other programs on our computers. its pretty sweet. i can get specs, TSB'*, installation/removal procedures, etc.
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Old 11-16-2007, 02:41 AM   #6
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Strangely, not much is available for 94 engines. I guess it all depends on where you look. I know you only have a top end swap from a 94 on your 93 L67, so here are all the things Alldata shows for camshafts from the 93 L27 and L67:

1993 L67
Dimensions:
Vin C,L &1, Camshaft Values
Camshaft Journal Diameter 1.785-1.786 in
Camshaft Bearing Clearance 0.0005-0.0035 in

Lift specs:
Engine/VIN Year Int. Exh.
3.8L/V6-231/C & L 1989-94 .250 .255

1993 L27
Dimensions:
Vin C,L &1, Camshaft Values
Camshaft Journal Diameter 1.785-1.786 in
Camshaft Bearing Clearance 0.0005-0.0035 in

Torque Specifications:
Camshaft Sprocket Bolt 100 Nm (74 lbs. ft.). + 90

Journal and Lifter Specs:
Journal Diameter 45.339 - 45.364 mm (1.785 - 1.786 in.)
Bearing Inside Diameter 45.377 - 45.428 mm (1.7865 - 1.7885 in.)
Bearing to Journal Clearance 0.013 - 0.089 mm (0.0005 - 0.0035 in.)

Lobe Lift
Intake 6.43 mm (0.250 in.)
Exhaust 6.48 mm (0.255 in.)
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Old 11-16-2007, 02:44 AM   #7
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I found this for a 92 L67, by the way.
http://theradomir.com/images/42195665.gif

I'm going to check the 92-95 L27 and L67 cam specs for Bonnevilles. Should I check other cars as well?
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Old 11-16-2007, 08:58 AM   #8
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Radomir, all 91-94 L27 and 91-95 L67'* use exactly the same cam.

(No difference between 93 and 94)

The top swap is ESSENTIALLY just the TB, SC, and MAF, but in the long run, there ends up being alot more to it.

You've found many of the same specs that I already have, or that others have found. However, different sources list slightly different numbers, and I used to havea full-blown spec list (I'd swear I posted it at one time), but can no longer find it.

Keep digging. I'll post up some of the numbers I have for comparison a bit later.
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Old 11-16-2007, 03:05 PM   #9
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When I looked up the cam specs for the L27 and the L67, though they were all the same, some cars and their various years yielded different amounts of results. For this reason, I checked all the Bonnevilles to see if any would have some more/less information to show. For example, 94 has the least amount of information, and then 92 has that but the chart as well. 93 has the most amount of info on the cam, so I checked all the years anyway. Nothing new came up. It seems that'* all that I could find. How different are your cam specs?
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