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AFR - Airflow Research 1031 - AFR SB-Chevy LT4 Aluminum Cylinder Heads

AFR - Airflow Research 1031 - AFR SB-Chevy LT4 Aluminum Cylinder Heads

AFR - Airflow Research#033-1031

195cc LT1/LT4 Eliminator Street Aluminum Cylinder Heads
  • SB-Chevy
  • Street CNC Porting
  • 1.290'' Hyd Roller Dual Valve Spring
  • 58cc Combustion Chambers
  • Angle Spark Plug
  • Assembled
  • CARB OE #D-250-2
  • Sold in Pairs, 2/pkg.

    AFR - Airflow Research 1031 - AFR SB-Chevy LT4 Aluminum Cylinder Heads Details

    Street CNC Porting LT1/LT4 Eliminator Cylinder Heads

  • 2.050'' Intake Valve

    Small Block Chevy 195cc LT1/LT4 Eliminator 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, 2.050'' x 4.903'' o.a.l.
    Exhaust Valve, 1.600'' x 4.955'' o.a.l.
    1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs. on seat, .600'' maximum lift, max RPM 6300-6500
    7º Titanium Retainers
    7º Valve Locks
    3/8'' Rocker Studs
    Adjustable 5/16'' Guide Plates (if using non-self aligning rockers)
    Viton Valve Seals
    Hardened Spring Cups
    Intake Valve Seats
    Exhaust Valve Seats
    Bronze Valve Guides
    Small Block Chevy 195cc LT1/LT4 Eliminator Street Head Specifications
    Head Torque w/Moly Lube 65-70 Ft. Lbs.
    Rocker Stud Torque 55 Ft. Lbs.
    Intake Port Gasket Fel-Pro 375-1284 - DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket.
    Exhaust Port Gasket Fel Pro 375-1404
    Head Gasket 350ci Fel Pro 375-1074
    Head Bolts & Studs Standard ARP
    Head Bolt Washers Manley Standard
    Stud Girdle Standard GM L98
    Suggested Manifold GM LT4
    Spark Plug Starting Range AC FR3LS or 41629
    Combustion Chambers 58cc
    Spring Pocket can be cut to 1.625, no deeper.
    Valve Spacing Standard GM L98
    Rocker Arms Standard GM L98
    Valve Angle 23°
    Angle Mill .008'' per cc
    Flat Mill .006'' per cc

  • AFR - Airflow Research 1031 - AFR SB-Chevy LT4 Aluminum Cylinder Heads










    AFR 195cc SBC LT4 Street Cylinder Head
    AFR's 195cc SBC LT4 Street Cylinder Head The Ultimate Bolt-on Emissions Legal Street Weapon The Airflow Research Emissions Legal, 195cc intake port LT4 small block Chevy cylinder heads are available in an LT4 angle plug version. These heads feature a 58cc combustion chamber with a 64cc exhaust port and a 3/4'' thick head deck (ideal for nitrous or blower applications). Standard valves are 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts), 23º valve angle, and standard valve spacing make this the perfect street head for 350 cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users. No special parts are required.
    AFR 210cc SBC LT4 Racing Cylinder Head
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    All Accessory Holes are Predrilled & Tapped!

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