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  #1  
Old 07-08-2010, 07:46 PM
Maddart Maddart is offline
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Join Date: Apr 2010
Location: Homer Glen il
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Default 383 with sealed power CS-661 cam

I just had my 383 motor rebuilt and am troubled.The business builds pro stock race motors and i asked them to rebuild my 383 with a cam a step or two above the stock cam. (Wanted that slight lope) I found out that he used a sealed power CS-661 cam and from the specs i can find it appears to be much less lift and duration than even a stock cam. Possibly very anemic.
Car is 4 spd-10.5:1 compression 3.23 rear

I am two weeks away from firing this thing up.

Anyone have any insight on this?

Thanks
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Old 07-08-2010, 09:57 PM
Dirt Driver Dirt Driver is offline
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Default

I can't find the specs for the CS-661 other than what engines it fits. Summit has a Sealed Power cam called ZCS-661 (or SLP-CS-661) that says it's the factory high performance cam. I'm not sure what the Z in the part number means but I suspect it's the same cam. The magnum cam is pretty strong in a 383. They are easier to over cam than a 440. The Lunati replacement for the magnum cam is bit more modern and radical but not a lot of lope. It's about perfect for a 383. For a fairly lopey cam that is still very streetable is the 224/234/.465"/.488"/114 Summit cam.

http://www.summitracing.com/parts/SUM-6401/

Here's my favorite 383 cam.

http://www.summitracing.com/parts/LUN-10305LUN/

The stock magnum cam isn't bad though.
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Old 07-09-2010, 09:43 AM
Maddart Maddart is offline
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Talked to the builder-he confirmed your info-equivelant to mopar performance magnum cam
thanks
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