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AFR - Airflow Research 3630

290cc Oval Port 24° Magnum Street/Strip Aluminum Cylinder Heads BB-Chevy

033-3630

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Estimated ship date 08/31/17 if Ordered Today
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AFR - Airflow Research 3630 290cc Oval Port 24° Magnum Street/Strip Aluminum Cylinder Heads BB-Chevy $2,618.03
290cc Oval Port 24° Magnum Street/Strip Aluminum Cylinder Heads
  • BB-Chevy
  • 113cc Combustion Chambers
  • Bare Head Only
  • Sold in Pairs, 2/pkg.

  • AFR - Airflow Research 3630 Details

    This is an unassembled bare cylinder head with valve guides and valve seats installed only. Does not include any parts such as valves, springs, spring components, studs or guideplates.

    Big Block Chevy 290cc Oval Port 24° Magnum
    Basic Package Components
    100% CNC Ported Combustion Chambers
    100% CNC Ported Exhaust Ports
    100% CNC Ported Intake Ports
    Competition 5-Angle Valve Job
    Intake Valve Size - 2.250'' (Valve not included)
    Exhaust Valve Size - 1.880'' (Valve not included)
    Intake Valve Seats
    Exhaust Valve Seats
    Bronze Valve Guides

     

    Big Block Chevy 290cc Oval Port 24° Magnum
    Street Head Specifications
    Head Torque w/Moly Lube75 Ft. Lbs.
    Rocker Stud Torque55 Ft. Lbs.
    Intake Port GasketFel-Pro 375-1212 - DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket.
    Exhaust Port GasketAFR 033-6858
    Head Gasket4.540'' Bore, Fel Pro 375-1017
    AFR 033-6850
    Head Bolts & StudsARP 070-135-3703 (Gen 4),
    ARP 070-135-3707 (Gen 5)
    Head Bolt WashersManley Standard
    Stud GirdleAFR 033-6210
    Suggested ManifoldWeiand Stealth or Edelbrock Vic Jr. or RPM Performer
    Spark Plug Starting RangeAutolite 3935
    Combustion Chambers113cc As Cast
    Intake Port Volume290cc As Cast
    Exhaust Port VolumeN/A
    Spring Pocket can be cut to 1.750, no deeper.
    Valve SpacingStandard
    Rocker ArmsStandard
    Valve Angle24° / 4° Intake ; 15° / 4° Exhaust
    Angle Mill, 97cc Maximum.009'' per cc
    Flat Mill, 102cc Maximum.006'' per cc
    NOTE:Flat and Angle mills might require a .120'' thick head gasket.

    Specifications:

    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    Yes
    CNC-Machined Exhaust Runner
    Yes
    CNC-Machined Intake Runner
    Yes
    Combustion Chamber Style
    Heart
    Combustion Chamber Volume (cc)
    112
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Bare
    Damper Spring Included
    No
    Exhaust Port Location
    Raised
    Exhaust Port Shape
    Round
    Exhaust Valve Angle
    15/4
    Exhaust Valve Diameter (in.)
    1.88
    Exhaust Valves Included
    No
    Guideplates Included
    No
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Oval
    Intake Runner Volume (cc)
    290
    Intake Valve Angle
    24/4
    Intake Valve Diameter (in.)
    2.25
    Intake Valves Included
    No
    Locks Included
    No
    Machined for O-Ring
    No
    Oiling Style
    Through pushrod
    Quantity
    Sold as a pair
    Retainers Included
    No
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    No
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    3-angle
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    Yes
    Valve Springs Included
    No
    Valve Stem Seals Included
    No
    Manufacturer's Part Number:
    3630

    AFR's Medium Sized Oval Port
    Big Block Chevy Powerhouse!

    For incredible in ''Oval Port'' performance, the fully CNC ported AFR 290 has no competition. With flow figures most small to medium sized rectangular port castings would be envious of, these high flowing ''Ovals'' produce tremendous airspeed and really pack a punch. Ideally suited for 396-509ci street and strip performance, as well as circle track applications which require strong low and mid-range torque to help accelerate a car coming off a corner. Once again, AFR has included it's trademark 3/4'' deck, reinforced rocker stud bosses, and thick rugged castings, so you can own the strongest and most efficient heads on the market today. Premium hardware such as 2.250'' / 1.880'' one-piece stainless valves, 1.550'' double springs, 10-degree locks and retainers, and high quality studs and guideplates all come as standard equipment. Take note the higher flowing exhaust ports and bolt pattern are raised .375'' (3/8'') over stock location, this rarely affects chassis fitment. These heads have no EGR and are not emissions legal. .

    Installation Notes: Optional stud girdle required for 2° rolled valve angles and 1'' longer head bolt needed on four bottom exhaust bolt holes.

    290cc Oval Port Magnum Street Cylinder Head Features:
  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-angle Valve Job
  • 290cc Intake Ports
  • Intake Valve, 2.250'' x 5.500'' Overall Valve Length
  • Exhaust Valve, 1.880'' x 5.448'' Overall Valve Length
  • Hydraulic Roller Valve Spring: 1.550'' OD Hydraulic Roller Dual Valve Spring, 170 lbs on seat, 473 lbs @ .600'' maximum lift
  • Solid Roller Valve Spring: 1.550'' OD PAC Racing Solid Roller Valve Spring, 225 lbs on seat, .680'' maximum lift
  • 10° Manley 4140 Chrome Moly Retainers
  • 10° Valve Locks
  • 7/16'' Rocker Studs
  • Adjustable 3/8'' Guide Plates
  • Viton Valve Seals
  • Hardened Spring Seats
  • Intake Valve Seats
  • Exhaust Valve Seats
  • Bronze Valve Guides

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