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Brodix 1001000 - Brodix Small Block Chevy 18-Degree X Aluminum Heads

Brodix 1001000 - Brodix Small Block Chevy 18-Degree X Aluminum Heads

Brodix#158-1001000

Track 1 Cylinder Heads
  • 221cc Intake Ports
  • 67cc Combustion Chambers
  • 2.055'' Intake / 1.600'' Exhaust Valves
  • 1.550'' Dia. Springs - 140# Seat Pressure
  • Steel Retainers
  • Angle Plug
  • Assembled, 2/pkg.

    Brodix 1001000 - Brodix Small Block Chevy 18-Degree X Aluminum Heads Details

    Track 1 Cylinder Heads

  • 67cc Combustion Chambers
  • Cylinder Head Specifications
  • Intake Port Volume: 221cc
  • Combustion Chamber Volume: 67cc
  • Valves: 2.055'' dia. x 4.920'' o.a.l. Intake / 1.600'' dia. x 4.940'' o.a.l. Exhaust ( 11/32'' Stem Diameter )
  • Valve Springs: 1.550'' Diameter - Open Pressure: 355 lbs. @ 1.350''; Closed Pressure: 140 lbs. @ 1.950; Installed Height: 1.950''; Max Lift: .600''; Coil Bind @ 1.170''
  • Spring Retainers: 1.430'' 10° Steel
  • Rocker Studs: 7/16''
  • Guide Plates: 5/16''
  • Valve Seals: 11/32''
  • Spark Plug Configuration: Angled

    Facts and Related Components
  • Torque Heads: 70 ft-lb.
  • Torque Rocker Studs: 40-45 ft-lb.
  • Intake Gasket: Fel-Pro p/n 375-1206, Cometic p/n C5414
  • 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 375-1406 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 070-234-4301 (12-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: Brodix BR 6435 (p/n 158-BR6435)
  • Rocker Arms: Standard, T&D Economy 2256, Jesel Shaft System KPS 01001
  • 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 BM 1000 (p/n 158-BM1000) / HV 1000 (p/n 158-HV1000) / HV 1002 (p/n 158-HV1002) / SE 100 (p/n 158-SE100) / SE 102 (p/n 158-SE102)

  • Brodix 1001000 - Brodix Small Block Chevy 18-Degree X Aluminum Heads

    Less Weight and More Power!

    The Brodix Small Block Chevy 18-Degree X head is the best of both worlds: 18-Degree horsepower, no expensive shaft mount rockers or offset lifters required. It offers a dramatic horsepower gain over 23-Degree cylinder heads, ideal for budget-minded racers who want to go
    faster. Other advantages are raised 245cc intake ports that flow over
    320 cfm out of the box, 68cc combustion chambers, 2.140" intake and
    1.600" exhaust valves!

    Related Facts:
  • Torque Heads: 70 ft-lb
  • Torque Rocker Studs: 40-45 ft-lb
  • Recomended Head Studs: ARP 234-4727
  • Spark Plug Starting Points: NGK R5671A-9 for Alcohol NGK R5671A-8 for Racing Gas
  • Rocker Arms: 40/60 Spacing
  • Requires Special Pistons & Pushrods

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