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Good Cam for 406???

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Old Oct 18, 2006 | 09:23 PM
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Default Good Cam for 406???

What I plan on putting together is a 406 using the following parts. TFS 64cc CNC 195 runners Aluminum heads, Probe forged pistons, 6" Scat rods, Scat 9000 crank, 9;5;1 comp. DT 1 5/8 headers, RPM Air Gap Intake, 750 Holley carb, TKO 500 (.68OD), and MSD digital 6 electronics. Now for a cam??? I have been hearing and reading of this Lunati 268 #60103LK cam. Guys on the Chevelle web site and Harold from Ultradyne, and had also worked for Lunati says its also a good grind. Anybody out there using it or know of anyone that has? I need vacuum as you all well know. Any advice or recommendations are appreciated.
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Old Oct 18, 2006 | 09:32 PM
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Originally Posted by 1atti2d
What I plan on putting together is a 406 using the following parts. TFS 64cc CNC 195 runners Aluminum heads, Probe forged pistons, 6" Scat rods, Scat 9000 crank, 9;5;1 comp. DT 1 5/8 headers, RPM Air Gap Intake, 750 Holley carb, TKO 500 (.68OD), and MSD digital 6 electronics. Now for a cam??? I have been hearing and reading of this Lunati 268 #60103LK cam. Guys on the Chevelle web site and Harold from Ultradyne, and had also worked for Lunati says its also a good grind. Anybody out there using it or know of anyone that has? I need vacuum as you all well know. Any advice or recommendations are appreciated.
Seems awfully small for a 406 to me That is a 350 cam. You can go bigger on lift and duration and still get good vacumn with your setup. I would go hydraulic retro roller.http://www.compcams.com/Technical/Se...umber=12-432-8 Here is a cam help page. With a 406 it will tame the cam down a lot. You need 1 or 2 sizes larger than the cam help page will indicate because the 406 will pull down low anyway and with the 5 speed you will be able to stay in your working RPM range easily. http://www.compcams.com/Technical/CamHelp/

Last edited by 63mako; Oct 18, 2006 at 10:00 PM.
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Old Oct 18, 2006 | 09:35 PM
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Have you bought the heads yet ? A 406ci is bigger than some big blocks and only 21 cubes smaller than 427, I wouldn't use anything smaller than 210cc on a 406ci. Sorry can't help on the cam with those heads and that compression ratio

Last edited by MotorHead; Oct 18, 2006 at 11:08 PM.
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