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AFR – Airflow Research 2000 – AFR Big Block Chevy 315cc Rectangle Port Magnum Aluminum Cylinder Heads

$3,322.25

AFR – Airflow Research# 2000

315cc Rectangle Port 24° Magnum Aluminum Cylinder Heads

  • BB-Chevy
  • 121cc Combustion Chambers
  • Assembled
  • Sold in Pairs, 2/pkg.
  • SKU: 2000. Categories: , .

    Product Description

    AFR – Airflow Research 2000 – AFR Big Block Chevy 315cc Rectangle Port Magnum Aluminum Cylinder Heads Details

     

     

    Big Block Chevy 315cc Rectangle 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, 2.250” x 5.500” Overall Valve Length
    Exhaust Valve, 1.880” x 5.448” Overall Valve Length
    1.625” OD PAC Racing Solid Roller Valve Spring, 275 lbs. on seat, .850” maximum lift, max RPM 7400-7600
    10º Manley 4140 Chrome Moly Retainers
    10º Valve Locks
    7/16” Rocker Studs
    Adjustable 3/8” Guide Plates
    Viton Valve Seals
    Hardened Spring Seat
    Intake Valve Seats
    Exhaust Valve Seats
    Bronze Valve Guides
    Big Block Chevy 315cc Rectangle Port 24° Magnum Head Specifications
    Head Torque w/Moly Lube 75 Ft. Lbs.
    Rocker Stud Torque 55 Ft. Lbs.
    Intake Port Gasket, 1.720” x 2.450” with 1/2” radius Fel-Pro 1275 – DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket.
    Exhaust Port Gasket AFR 6858
    Head Gasket Mark IV 4.540” Bore, Fel Pro 1017
    AFR 6850
    Head Gasket Mark V – VI Up to 4.500” Bore, Fel Pro 1047
    Head Gasket Mark V – VI 4.500” to 4.600” Bore, Fel Pro 17049
    Head Bolts & Studs Standard ARP
    Head Bolt Washers Manley Standard
    Stud Girdle AFR 6210
    Suggested Manifold Edelbrock 2907 & 2927 or Brodix HV2000 & HV2001
    Spark Plug Starting Range Champion C59C, Autolite 3932
    Combustion Chambers 121cc Fully CNC’d
    Intake Port Volume 315cc Fully Ported
    Exhaust Port Volume N/A
    Spring Pocket can be cut to 1.750, no deeper.
    Valve Spacing Standard
    Rocker Arms Standard
    Valve Angle 24° / 4° Intake ; 15° / 4° Exhaust
    Angle Mill, 104cc Maximum .009” per cc
    Flat Mill, As Cast 108cc, CNC 114cc Maximum .006” per cc
    NOTE: Flat and Angle mills might require a .120” thick head gasket.