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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

JEGS Part Number: 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.
  • $1,906.05
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    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

  • Specifications:

    Accessory Bolt Holes Drilled
    Yes
    Calculator
    Compression Calculator
    CNC-Machined Combustion Chamber
    Yes
    CNC-Machined Exhaust Runner
    Yes
    CNC-Machined Intake Runner
    Yes
    Combustion Chamber Style
    Heart
    Combustion Chamber Volume (cc)
    55
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Raised
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    64
    Exhaust Valve Angle
    23
    Exhaust Valve Diameter (in.)
    1.6
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    Yes
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    195
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    2.05
    Intake Valves Included
    Yes
    Lock Style
    7 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.6
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.29
    Quantity
    Sold as a pair
    Retainer Material
    Titanium
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Angled
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Center and 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
    Yes
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    1031










    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
    These reasonably priced AFR 210cc intake port small block Chevy angle plug cylinder heads come fully CNC ported with 64cc combustion chambers and 80cc exhaust ports and a 3/4'' thick head deck (ideal for nitrous or blower applications). Standard valves are 2.080 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23º valve angle, and standard valve spacing make this the perfect head for 350 to 400 cid engines in bracket drag cars, sportsman oval trackers, and highly modified street class cars operating between 3000 and 7500 rpm (higher rpm ranges possible depending on combination of parts).The 210cc heads are available in either standard or spread port exhaust. No special parts are required.

    All Accessory Holes are Predrilled & Tapped!