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Brodix 1011003S

Race-Rite 180 Series Cylinder Heads 180cc Intake Ports

Brodix 1011003S

158-1011003S

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Ships 12/13/16 if Ordered Today
Brodix 1011003S Race-Rite 180 Series Cylinder Heads 180cc Intake Ports $1,643.90
Race-Rite 180 Series Cylinder Heads
  • 180cc Intake Ports
  • 67cc Combustion Chambers
  • 2.020'' Intake / 1.600'' Exhaust Valves
  • 1.250'' Dia. Springs - 100# Seat Pressure
  • Steel Retainers
  • Straight Plug
  • Assembled, 2/pkg.

  • Brodix 1011003S Details

    Race-Rite 180 Series Cylinder Heads

  • 2.020'' Intake / 1.600'' Exhaust Valves
  • 1.250'' Diameter Valve Springs - 300# Open, 100# Closed Spring Pressure
  • 67cc Combustion Chambers
  • Cylinder Head Specifications
  • Intake Port Volume: 180cc
  • Combustion Chamber Volume: 67cc
  • Valves: 2.020'' dia. x 4.920'' o.a.l. Intake / 1.600'' dia. x 4.940'' o.a.l. Exhaust ( 11/32'' Stem Diameter )
  • Valve Springs: 1.250'' Diameter - Open Pressure: 300 lbs.; Closed Pressure: 100 lbs.; Installed Height: 1.850''; Max Lift: .525''
  • Spring Retainers: 1.250'' 7° Steel
  • Rocker Studs: 3/8''
  • Guide Plates: 5/16''
  • Valve Seals: 11/32''
  • Spark Plug Configuration: Straight

    Facts and Related Components
  • Torque Heads: 70 ft-lb.
  • Torque Rocker Studs: 40-45 ft-lb.
  • Intake Gasket: Fel-Pro p/n 375-1204, Cometic p/n 245-C5416
  • Head Gasket: Fel-Pro p/n 375-1003 (350ci) / 375-1004 (400ci) or Cometic p/n 245-C5399 (350ci) / 245-C5403 (400ci)
  • Exhaust Gasket: Fel-Pro p/n 375-1404 or Cometic p/n 245-C5417
  • Head Bolts: ARP p/n 070-134-3601 or Manley p/n 660-42313
  • Head Bolt Washers: MANLEY p/n 660-42102
  • Head Studs: ARP p/n 070-134-4001 (6-point)
  • Spark Plug Specs: 14mm Thread, .750'' (3/4'') Reach, Gasket Seat
  • Valve Angle: 23°
  • Angle Milling: .0078'' per cc
  • Flat Milling: .0060'' per cc
  • Pushrod Slots: Standard
  • Stud Girdle: Standard
  • Rocker Arms: Standard
  • Lifters: Standard
  • Exhaust Pattern: Standard
  • Valve Centerline: Standard
  • Spring Pockets: May not be cut any larger or deeper than 1.550''
  • Accessory Bolt Holes are Drilled

  • Specifications:

    Manufacturer's Part Number:
    1011003S

    Top Selling, Bolt-On Performance Head!
    23° Intake & Exhaust Valve Angles

    The Brodix Race-Rite 23-degree Small Block Chevy Aluminum Cylinder Heads are designed by Brodix for maximum out-of-the-box horsepower. Every casting is poured from A-356 virgin aluminum and tested before Brodix utilizes their in-house processes such as 100% CNC machining and heat treating to assure that you receive the best products for your hard-earned money. Solid, phosphorous bronze guides are used to reduce valve leakage and oil consumption. The ductile iron valve seats are installed for use with unleaded fuel. Race-Rite heads are also milled and drilled on the ends for accessory mounts. The dual valve cover bolt pattern allows you to use either the traditional perimeter-style bolt pattern valve cover or the late-model center bolt pattern valve cover. Sold in Pairs. Made in the USA!

      VALVE SPRING   Specs
      1.250'' Diameter Valve Spring for Hydraulic Flat Tappet Cam
  • Spring Pressure Open: 300 lbs.
  • Spring Pressure Closed: 100 lbs.
  • Installed Height: 1.850''
  • Max Lift: .525''
  •   1.470'' Diameter Valve Spring for Hydraulic Roller Lifter Cam
  • Spring Pressure Open: 325 lbs.
  • Spring Pressure Closed: 125 lbs.
  • Installed Height: 1.900''
  • Max Lift: .575''
  •   1.550'' Diameter Valve Spring for Mechanical Flat Tappet Cam
  • Spring Pressure Open: 400 lbs.
  • Spring Pressure Closed: 140 lbs.
  • Installed Height: 1.950''
  • Max Lift: .600''
  •   1.550'' Diameter Valve Spring for Mechanical Roller Lifter Cam
  • Spring Pressure Open: 550 lbs.
  • Spring Pressure Closed: 240 lbs.
  • Installed Height: 1.950''
  • Max Lift: .700''

  • Part numbers ending with
    the letter "A" = Angled Spark Plug

    Part numbers ending with
    the letter "S" = Straight Spark Plug

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