AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair
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AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair

AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair

AFR designed these 2101-1 BBC Magnum Rectangular Port Cylinder Heads especially for more aggressive street, or street/strip Big Block Chevys with displacements up to 540 cubic inches operating below 6800 RPM. These feature partially CNC machined surfaces on the intake runners, exhaust runners in addition to combustion chambers. This allows for extremely accurate as well as repeatable port location and performance.

These heads come fully assembled with a CNC bowl blend, ARP rockers studs, PAC Racing springs, viton valve seals in addition to AFR adjustable guide plates. Machined bead valve locks (not stamped), hardened spring cups, as well as Stainless Steel valves included also.

AFR 2101-1 BBC Magnum Cylinder Head Features:

  • Cylinder Head Material: Aluminum
  • Assembled: Yes
  • Spark Plug Style: Angled
  • Combustion Chamber Volume: 121cc
  • Intake Runner Volume: 325cc
  • Exhaust Runner Volume: 132cc
  • Intake Port Shape: Rectangular
  • Intake Port Location: Stock
  • Exhaust Port Shape: Round
  • Exhaust Port Location: Raised .375 in.
  • Valve Angle: 24/4 Intake & 15/4 Exhaust
  • Intake Valve Diameter: 2.300 in.
  • Exhaust Valve Diameter: 1.880 in.
  • Maximum Valve Lift: 0.850 in.
  • Camshaft Style: Solid Roller
  • Outside Diameter of Outer Spring: 1.625 in.
  • Valve Spring Pocket Diameter: 1.725 in.
  • Maximum Valve Spring Pocket Machining: 1.750 in.
  • Lock Style: 10 Degree
  • Deck Thickness: 0.750 in.
  • Rocker Stud Size: 7/16-20 in.
  • Guide Plate Pushrod Size: 3/8 in.
  • Retainer Material: Chromoly Steel
  • Valve Cover Mounting Style: Perimeter Bolt
  • Sold as a Pair

Established in 1970 in Valencia, CA, Air Flow Research is a family-owned and operated company building products for the Professional Racing in addition to Street markets. This includes racers, street performance fans, as well as everyone in-between. The Air Flow Research product lineup contains cylinder heads, intake manifolds, valves, gaskets, carburetor adapters as well as spacers, lifters, fasteners, and more.

$1,295.35

Original: $3,701.00

-65%
AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair

$3,701.00

$1,295.35

AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair

AFR designed these 2101-1 BBC Magnum Rectangular Port Cylinder Heads especially for more aggressive street, or street/strip Big Block Chevys with displacements up to 540 cubic inches operating below 6800 RPM. These feature partially CNC machined surfaces on the intake runners, exhaust runners in addition to combustion chambers. This allows for extremely accurate as well as repeatable port location and performance.

These heads come fully assembled with a CNC bowl blend, ARP rockers studs, PAC Racing springs, viton valve seals in addition to AFR adjustable guide plates. Machined bead valve locks (not stamped), hardened spring cups, as well as Stainless Steel valves included also.

AFR 2101-1 BBC Magnum Cylinder Head Features:

  • Cylinder Head Material: Aluminum
  • Assembled: Yes
  • Spark Plug Style: Angled
  • Combustion Chamber Volume: 121cc
  • Intake Runner Volume: 325cc
  • Exhaust Runner Volume: 132cc
  • Intake Port Shape: Rectangular
  • Intake Port Location: Stock
  • Exhaust Port Shape: Round
  • Exhaust Port Location: Raised .375 in.
  • Valve Angle: 24/4 Intake & 15/4 Exhaust
  • Intake Valve Diameter: 2.300 in.
  • Exhaust Valve Diameter: 1.880 in.
  • Maximum Valve Lift: 0.850 in.
  • Camshaft Style: Solid Roller
  • Outside Diameter of Outer Spring: 1.625 in.
  • Valve Spring Pocket Diameter: 1.725 in.
  • Maximum Valve Spring Pocket Machining: 1.750 in.
  • Lock Style: 10 Degree
  • Deck Thickness: 0.750 in.
  • Rocker Stud Size: 7/16-20 in.
  • Guide Plate Pushrod Size: 3/8 in.
  • Retainer Material: Chromoly Steel
  • Valve Cover Mounting Style: Perimeter Bolt
  • Sold as a Pair

Established in 1970 in Valencia, CA, Air Flow Research is a family-owned and operated company building products for the Professional Racing in addition to Street markets. This includes racers, street performance fans, as well as everyone in-between. The Air Flow Research product lineup contains cylinder heads, intake manifolds, valves, gaskets, carburetor adapters as well as spacers, lifters, fasteners, and more.

Product Information

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Description

AFR designed these 2101-1 BBC Magnum Rectangular Port Cylinder Heads especially for more aggressive street, or street/strip Big Block Chevys with displacements up to 540 cubic inches operating below 6800 RPM. These feature partially CNC machined surfaces on the intake runners, exhaust runners in addition to combustion chambers. This allows for extremely accurate as well as repeatable port location and performance.

These heads come fully assembled with a CNC bowl blend, ARP rockers studs, PAC Racing springs, viton valve seals in addition to AFR adjustable guide plates. Machined bead valve locks (not stamped), hardened spring cups, as well as Stainless Steel valves included also.

AFR 2101-1 BBC Magnum Cylinder Head Features:

  • Cylinder Head Material: Aluminum
  • Assembled: Yes
  • Spark Plug Style: Angled
  • Combustion Chamber Volume: 121cc
  • Intake Runner Volume: 325cc
  • Exhaust Runner Volume: 132cc
  • Intake Port Shape: Rectangular
  • Intake Port Location: Stock
  • Exhaust Port Shape: Round
  • Exhaust Port Location: Raised .375 in.
  • Valve Angle: 24/4 Intake & 15/4 Exhaust
  • Intake Valve Diameter: 2.300 in.
  • Exhaust Valve Diameter: 1.880 in.
  • Maximum Valve Lift: 0.850 in.
  • Camshaft Style: Solid Roller
  • Outside Diameter of Outer Spring: 1.625 in.
  • Valve Spring Pocket Diameter: 1.725 in.
  • Maximum Valve Spring Pocket Machining: 1.750 in.
  • Lock Style: 10 Degree
  • Deck Thickness: 0.750 in.
  • Rocker Stud Size: 7/16-20 in.
  • Guide Plate Pushrod Size: 3/8 in.
  • Retainer Material: Chromoly Steel
  • Valve Cover Mounting Style: Perimeter Bolt
  • Sold as a Pair

Established in 1970 in Valencia, CA, Air Flow Research is a family-owned and operated company building products for the Professional Racing in addition to Street markets. This includes racers, street performance fans, as well as everyone in-between. The Air Flow Research product lineup contains cylinder heads, intake manifolds, valves, gaskets, carburetor adapters as well as spacers, lifters, fasteners, and more.

AFR 2101-1 BBC Magnum Rectangular Port Cylinder Head, Pair | Winners Circle