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Any idea on this cam? 630-CPC-BC-7

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Old 08-01-2019, 01:55 PM
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Car: 1992 RS
Engine: 305 (LO3)
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Any idea on this cam? 630-CPC-BC-7
630-cpc-bc-7. It has the octagonal flats and a factory number but nothing comes up for it.
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Old 08-10-2019, 03:56 PM
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Re: Any idea on this cam? 630-CPC-BC-7
So the base lobes of this cam measures 1.32 and the intake is 1.56 and exhaust is 1.58, so .360 and .390 lift

This is a factory roller with a fuel pump lobe. Any ideas?
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Old 08-11-2019, 01:38 AM
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Re: Any idea on this cam? 630-CPC-BC-7
Originally Posted by gwarren007
So the base lobes of this cam measures 1.32 and the intake is 1.56 and exhaust is 1.58, so .360 and .390 lift

This is a factory roller with a fuel pump lobe. Any ideas?
Sounds like a 305 peanut roller to me. .350/.385 lift.
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Old 08-12-2019, 12:16 AM
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Re: Any idea on this cam? 630-CPC-BC-7
Did any of them have a fuel pump lobe? That is what has me baffled
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Old 08-12-2019, 09:50 AM
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Re: Any idea on this cam? 630-CPC-BC-7
My '643 cam from a 1987 TPI had a fuel pump lobe from factory.
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Old 08-28-2019, 09:36 PM
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Re: Any idea on this cam? 630-CPC-BC-7
Originally Posted by morgsie
My '643 cam from a 1987 TPI had a fuel pump lobe from factory.
That would make sense. Same cam used in the 1987 LG4 w/4bbl carb and mechanical fuel pump.
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Old 08-29-2019, 10:10 PM
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Re: Any idea on this cam? 630-CPC-BC-7
Originally Posted by TransamGTA350
That would make sense. Same cam used in the 1987 LG4 w/4bbl carb and mechanical fuel pump.
Yep the 87 and 88 LG4s used the same cam. The big cars did not go TBI on the 305 until 89 IIRC.
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Old 08-30-2019, 01:23 AM
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Re: Any idea on this cam? 630-CPC-BC-7
the b-bodies had tbi on v8s since '89 but on v6s since '87. I believe same with 87/88 g-bodies.
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Old 08-31-2019, 12:58 AM
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Re: Any idea on this cam? 630-CPC-BC-7
Originally Posted by morgsie
the b-bodies had tbi on v8s since '89 but on v6s since '87. I believe same with 87/88 g-bodies.
85 for TBI on the 4.3 in B & G bodies.
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Old 09-08-2020, 10:43 PM
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Re: Any idea on this cam? 630-CPC-BC-7
Thank you.
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