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Old 07-13-2006 | 05:47 PM
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Default Cam Specs needed

Does anyone have the specs for the O.E. cam used in a 1991 502 mag 415 HP Merc???

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Old 07-13-2006 | 08:26 PM
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SB
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Default Re: Cam Specs needed

Why yes I do:

Mag BBC 454/502 Flat Tappet (rect heads)

.004” 296*, 296*
.006” 286*, 286*
.050” 224*, 224*
.200” 130*, 130*
Valve lift with 1.7 .510”, .510”
LSA 115.5
Part#431-9830
ICL 114 ATDC
ECL 117 BTDC
Part#431-850478 (same as above but ground with 5 degrees advance)
ICL 109 ATDC
ECL 122 BTDC
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Old 07-13-2006 | 08:29 PM
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Default Re: Cam Specs needed

I forgot to add, the 90-92 502 Mag used #431-9830. See above. This is according to BAM's website look up tables.
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Old 07-13-2006 | 09:44 PM
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Default Re: Cam Specs needed

Originally Posted by SB
I forgot to add, the 90-92 502 Mag used #431-9830. See above. This is according to BAM's website look up tables.
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