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What cam for 454 mag?

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Old 01-05-2013 | 03:29 PM
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Default What cam for 454 mag?

Putting my old motor back in boat to sell freshining it up first before install need cam similar to orig carburated 1995 gen v magnum 365hp or mild upgrade that wont revert with stock exh manifolds.Any suggestions would be helpful.Thanks
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Old 01-05-2013 | 06:52 PM
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you might want to call bob madera[rm builder]he has a ton of knowledge about cam selection.
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Old 01-05-2013 | 07:59 PM
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This would be very close to the stock Gen V flat tappet cam. Very slight bit more lift.
http://www.summitracing.com/parts/cc...make/chevrolet

Stock cam specs are
224/224 @.050"
510/510 lift
115.5 LSA
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Old 01-05-2013 | 10:15 PM
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Don't do any more cam with stock exhaust. Asking for reversion
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Old 01-05-2013 | 11:01 PM
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My buddy ran a 236/245 114lsa flat tappet for many years in upgraded 454 mags, and stock iron center rise manifolds. No reversion. I wouldn't have believed it, but it worked.

A good hyd roller grind, some roller rockers, will wake the engine up big time. Stock cam is very mild.
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Old 01-05-2013 | 11:10 PM
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comp cams xm262h works great with stock springs and manifolds..

Last edited by FIXX; 01-05-2013 at 11:16 PM.
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Old 01-06-2013 | 01:00 AM
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Originally Posted by picklenjim
This would be very close to the stock Gen V flat tappet cam. Very slight bit more lift.
http://www.summitracing.com/parts/cc...make/chevrolet

Stock cam specs are
224/224 @.050"
510/510 lift
115.5 LSA
Good choice to use a stock replacement and will not have reversion issues.
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Old 01-07-2013 | 08:05 AM
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Two,
The Merc 431-9830 cam is still available through GM dealers as GM part #14096209. GM rates this cam as 220º/220º @.050 .500/.500 LSA 115º, while other sources rate it 224º/224º @.050 .510/.510 LSA 115.5º. Either way it's the same cam. They have a version of this cam ground +5º as part# 10185060. The 14096209 cam has an intake lobe centerline of 114º ATDC and the 10185060 has an ICL of 109º ATDC advancing the ICL 5º. Both part #s are still active @ Scoggin-Dickey.

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Old 01-07-2013 | 02:20 PM
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Yoots,

Here is the link


http://store.chevroletperformance.co...-14096209--%3E


Bob
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Old 01-08-2013 | 04:39 PM
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I just opened up an original 454 mag carb engine that had been sitting for years..... You are welcome to the stock cam if you like.... this was a forged crank motor with dimple rods and 7-16 bolts so I guess it was the High power version... there are some numbers on the end of the cam I can get you if you like... everything looks real good and I am using the crank for a nice buildup soon.... TBF
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