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AFR 357cc Magnum BBC Cylinder Heads 2010

Airflow Research (AFR) 2010 - AFR 357cc Magnum BBC Cylinder Heads

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Cylinder Heads, Competition Porting, Aluminum, Assembled, 121cc Chamber, 357cc Intake, Chevy, Big Block, Pair

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Manufacturer's Part Number: 2010
Part Type: Cylinder Heads
Summit Racing Part Number: AFR-2010

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 121
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 357cc
Exhaust Runner Volume (cc): 124cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Combustion Chamber Style: Heart
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: Round
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.300 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.880 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.750 in.
Outside Diameter of Outer Spring (in): 1.625 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 7/16-20 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 24/4
Exhaust Valve Angle: 15/4
Valve Guides Included: Yes
Valve Guide Material: Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-angle
Valve Seat Material: Ductile iron
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold as a pair.
Notes: 1 in. longer head bolts required on the four bottom exhaust bolt holes. These cylinder heads are competition ported.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

If "Dirty Harry" drove a race car, then it would certainly be fitted with a pair of AFR 357 Magnum aluminum cylinder heads. If huge horsepower is what you are searching for, these castings will certainly deliver. With AFR's fully CNC-ported 357cc heads flowing 425 cfm, they represent the ultimate in airflow for your big block Chevrolet. These cylinder heads were targeted at larger cubic inch engines (509-632 c.i.d.) looking for maximum horsepower and rpm capabilities with a primary operating range of 3,500-8,000 rpm (this range is an average and will vary with engine displacement and component selection). These aluminum heads also provide impressive torque figures at higher rpm levels. Blown, turbo, and nitrous engines will especially like the larger, higher flowing intake ports. AFR 357cc Magnum BBC cylinder heads will work best with camshafts exceeding 0.750 in. gross valve lift to make better use of the substantial airflow found in the higher lift range. These 357cc heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The AFR's fully CNC-ported 357 heads come with a 121cc chamber and are available with an optional 114cc combustion chamber as well.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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