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 Years
of research and development have been invested to bring you the ultimate
in bolt on performance for your Big Block Chevrolet. AFR is proud to introduce
our new line of BB Chevy aluminum cylinder heads. All three AFR Big Block cylinder
heads feature the highest flow numbers in their class. Our new, highly
efficient port designs outflow the competition at every lift-point, even
those with considerably larger runner volumes. An exclusive new combustion
chamber design provides impressive swirl figures and help our heads generate
big low and mid-lift airflow numbers. Considerable time has been spent
to bring you a cylinder head which maximizes the entire flow curve, not
just the big peak numbers. This aids in a much better “cylinder fill”
and dramatically increases engine “average” airflow consumption
(also spelled Horsepower!) Our high velocity port designs help enhance
engine acceleration as well as torque output. Structural features like
our trademark 3/4” head deck (a must for blown or nitrous engines),
reinforced rocker stud bosses, and thick wall runners provide unparalleled
durability, helping to create the strongest Big Block Chevy castings available
today. Both intake and exhaust valve angles have been rolled two degrees
to improve flow characteristics and provide a more efficient burn in the
combustion chamber. Our fully CNC ported competition packages will be
offered with intake port volumes of 315, 335, and 357cc’s, one of
which is sure to provide a solution for any rpm or cubic inch requirement.
Our Race Ready versions will feature “as cast” ports and combustion
chambers with intake ports available at 305, 325, and 345cc’s. Our
combustion chamber volume will be standard at 119cc’s in race ready
trim while our fully CNC ported versions will be 121cc’s. Both will
be available with 114cc chambers as an option. Premium stainless steel
one piece valves, chrome silicon 1.550” roller springs, and 10 degree
chrome moly steel locks and retainers will come standard. Titanium valves,
retainers, and different spring packages will be available as options.
Be sure to ask your sales technician for details on customizing these
heads to fit your exact requirements. Finally, a world class, true bolt-on
performance piece for your Big Block Chevy, with no special parts required.
Educate yourself before purchasing your next set of BB Chevy aluminum cylinder
heads, and we are confident you will choose AFR!!
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