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Brodix 1021004 - Brodix Small Block Chevy IK Series Aluminum Cylinder Heads

Brodix 1021004 - Brodix Small Block Chevy IK Series Aluminum Cylinder Heads

Brodix#158-1021004

IK 180 Series Cylinder Heads
  • 180cc Intake Ports
  • 64cc Combustion Chambers
  • 2.020'' Intake / 1.600'' Exhaust Valves
  • 1.250'' Dia. Springs - 100# Seat Pressure
  • Steel Retainers
  • Straight Plug
  • Assembled, 2/pkg.

    Brodix 1021004 - Brodix Small Block Chevy IK Series Aluminum Cylinder Heads Details

    IK 180 Series Cylinder Heads

  • 64cc Combustion Chambers
  • Cylinder Head Specifications
  • Intake Port Volume: 180cc
  • Combustion Chamber Volume: 64cc
  • Valves: 2.020'' dia. x 4.920'' o.a.l. Intake / 1.600'' dia. x 4.920'' 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 C5416
  • Head Gasket: Fel-Pro p/n 375-1003 (350ci) / 375-1004 (400ci) or Cometic p/n C5399 (350ci) / C5403 (400ci)
  • Exhaust Gasket: Fel-Pro p/n 375-1404 or Cometic C5415
  • 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
  • Recommended Intake Manifold: Brodix HP-1 (p/n 158-HP1) / HV 1016 (p/n 158-1016)

  • Brodix 1021004 - Brodix Small Block Chevy IK Series Aluminum Cylinder Heads

    Bolt-On Performance, Budget Minded Price!

    The Brodix IK Series 23° Small Block Chevy Aluminum Cylinder Heads are designed by Brodix to offer the only two things that matter...Performance and Price!. The IK Series cylinder heads are available in 180cc (IK 180) or 200cc (IK 200) intake port version that are specifically designed for optimum versatility, and your choice of 64cc or 70cc combustion chambers to help dial in the compression ratio that you require. The all new 100% CNC ported ''Wild Thing'' (BP IK 210) bridges the gap between Brodix Pro Street heads and their race heads. These heads feature 210cc (BP IK 210) intake ports and flow 287 cfm while utilizing all standard components. The ''Wild Thing'' is avaiable in a 64cc, 68cc or 75cc combustion chamber. Every casting is poured from A-356 virgin aluminum and tested before Brodix utilizes their in-house processes such as finish 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. IK Series heads are also milled and drilled on the ends for accessory mounts and uses the traditional perimeter-style 4-bolt pattern valve cover and only offered with the straight spark plug angle configuration. 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 Roller Lifter Cam
  • Spring Pressure Open: 550 lbs.
  • Spring Pressure Closed: 240 lbs.
  • Installed Height: 1.950''
  • Max Lift: .700''
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