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Part number: 12-905-9
Competitor Pricing
Product Details
Comp Cams 12-905-9 Oval Track Standard Base Circle Camshaft
Products specifications
Advertised Duration 308 int./312 exh.
Advertised Exhaust Duration 312
Advertised Intake Duration 308
Basic Operating RPM Range 5,000-8,200
Cam Style Mechanical roller tappet
Camshaft Gear Attachment 3-bolt
Camshaft Manufacturers Description Designed to work well with 311 to 355 c.i. engines with open carb. good road course camshaft.
Computer-Controlled Compatible No
Duration at 050 inch Lift 272 int./274 exh.
Exhaust Duration at 050 inch Lift 274
Exhaust Valve Lash 0.022 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.630 in.
Grind Number CS 308A-R7
Intake Duration at 050 inch Lift 272
Intake Valve Lash 0.020 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.630 in.
Lobe Separation (degrees) 107
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.630 int./0.630 exh.
Valve Springs Required Yes
Title 12-905-9 CamShaft, CS 308A-R7
Engine Make/Size Chevy Small Block (262-400)
RPM Range 5000-13000
Usage Strip
Exh. Duration @ .050 in. (Deg) 274
Exh. Duration Advertised (Deg) 312-6
Exhaust Valve Lift (in.) 0.63
Int. Duration @ .050 in. (Deg) 272
Int. Duration Advertised (Deg) 308-5
Intake Valve Lift (in.) 0.630
Lifter Type Mechanical Roller
  • Oval Track Camshaft
  • 1 Year Limited Warranty
Reviews
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L
Easy
C
I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.
W
great experience, good price, item arrived within 4 days of purchase, would do business with again in future !
N
This is the first time I've ordered from this site, but things look good from what I can tell so far. They had the parts I was looking for (including a fairly specialized racing part) for a price slightly lower than other places I had looked, and my order shipped the next business day. At the time I wrote this, they were also offering $5 back on my order for writing a review. ;-)
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