Manufacturer's Part Number CL12-673-4
Product Line COMP Cams Nostalgia Plus Cam and Lifter Kits
Summit Racing Part Number CCA-CL12-673-4
Cam Style Mechanical flat tappet
Basic Operating RPM Range 2,300-6,900
Duration at 050 inch Lift 247 int./254 exh.
Advertised Duration 284 int./291 exh.
Valve Lift with Factory Rocker Arm Ratio 0.504 int./0.498 exh. lift
Lobe Separation (degrees) 112
Intake Valve Lash 0.012 in.
Exhaust Valve Lash 0.012 in.
Grind Number CS NOSTALGIA 30-30+ SOLID
Best Tips for Breaking in a New Camshaft
http://www.horsepowermonster.com -- The
first few minutes of operation will determine the long-term survival of
your flat-tappet camshaft. More agressive lobe designs, stronger
valvesprings and changes to the additives in modern motor oils makes a
"wiped" cam lobe much more likely than in the days of classic muscle cars.
These are a few very important tips for properly breaking in your high
performance flat tappet camshaft.
For a complete parts list of everything used in this video, check out
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MORE INTERNET GOODNESS:
1969 Chevy Camaro Z28: Beautiful Engine Rumble
See all of our classic vehicles available for sale at Left Coast Classics
and this car at http://www.leftcoastclassics.com/1969-chevrolet-Camaro-Z28/ or call Donn at
707-332-8331 to get your hands on any of our fine classics.
Aaron's Z28 with newly installed 140 offroad camshaft
dz302 with optional "140" offroad cam installed
this is a fresh start in the morning, and the car was cold... idle was
below 1000 so it wasn't making enough vaccuum to keep the power valve
closed, hence the black smoke.
COMP Cams How to Set a Valve Lash
Valve lash is the mechanical clearance in the valvetrain from the valve tip
to the rocker in a pushrod engine using solid lifters. Watch as COMP Cams
explain how to make lash valve adjustments with the proper tools.
Zora Arkus-Duntov's last public interview
He put the 'Z' in the Corvette Z06, he was a legend in the automotive
industry. See now his last public interview.
Because he and I are products of the College of Engineering at the
University of Texas, although at different times, Harold Bettes and I had a
common academic background and friendship. After a highly productive
stint at a little (at the time) fledgling company named MSD ignitions while
I was toiling at Edelbrock, he moved on to another evolving organization in
Colorado Springs, Colorado, named the Superflow Corporation.
It was here that he birthed the concept of annually bringing together a
hundred or more persons in global motorsports (engine builders, parts
manufacturers and related stakeholders) into an activity that grew much
larger over time, bearing the name Advanced Engine Technology Conferences
(AETCs), now sponsored by COMP Cams and a part of the Performance Racing
Industry (PRI) Show in Orlando, Florida. Harold also formed a Hall of
Fame segment in the AETC program. Each year, a single person was
identified as having made major career contributions to motorsports and
honored at the annual AETC banquet, culminating each year's conferences.
No, this column isn't about Harold, but that's the stage on which the
Read more at:
454 hp 1968 camaro with rough idle
here is my car. its a 1968 z28 Camaro clone. it has a 350
stroked and bored .40 over so its a 385 i believe. it has brodix aluminum
heads with 2.02 intake / 1.60 Exhaust
valves, 200cc intake runners. 64cc chambers. edelbrock performer rpm
air-gap intake,750 speed demon carb, comp 284 cam, m21 tranni, 373 gear
ratio mickey thompson s/r sportsman tires that leave a 9 inch footprint.
hooks up really nice on street. Dynoed at 454 hp at crank..