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
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:
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.
Aarons 1964 Corvette Coupe L76 327 365
Just finised the mechanical restoration of my 1964 Corvette with its
original L76 327 365 horse power engine. This motor is basically a stroked
version of the famed DZ302 (which you can hear in my other video) This car
will be for sale once the paint and assembly is finished.