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Brodix 1321002 - Brodix Small Block Chevy Dragon Slayer Series Aluminum Cylinder Heads

Brodix 1321002 - Brodix Small Block Chevy Dragon Slayer Series Aluminum Cylinder Heads

Brodix#158-1321002

Dragon Slayer DS 225 Series Cylinder Heads
  • 225cc Intake Ports
  • 64cc Combustion Chambers
  • 2.080'' Intake / 1.600'' Exhaust Valves
  • 1.550'' Dia. Springs - 140# Seat Pressure
  • Steel Retainers
  • Angle Plug
  • Assembled, 2/pkg.

    Brodix 1321002 - Brodix Small Block Chevy Dragon Slayer Series Aluminum Cylinder Heads Details

    Dragon Slayer Series Cylinder Heads

  • 64cc Combustion Chamber
  • Cylinder Head Specifications
  • Intake Port Volume: 225cc
  • Combustion Chamber Volume: 64cc
  • Valves: 2.080'' dia. x 4.965'' o.a.l. Intake / 1.600'' dia. x 4.965'' o.a.l. Exhaust ( 11/32'' Stem Diameter )
  • Valve Springs: 1.550'' Diameter - Open Pressure: 400 lbs.; Closed Pressure: 140 lbs.; Installed Height: 1.950''; Max Lift: .600''
  • Spring Retainers: 1.550'' 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: Standard
  • Rocker Arms: Standard (optional, T&D 2256 or Jesel 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)

  • Brodix 1321002 - Brodix Small Block Chevy Dragon Slayer Series Aluminum Cylinder Heads

    23-Degree Small Block Chevy Compatible!

    The Brodix Dragon Slayer Series Small Block Chevy Aluminum Cylinder Heads are the definition of economical out-of-the-box horsepower! The 23° Dragon Slayer DS 225 Series cylinder head comes standard with CNC ported combustion chambers allowing this port to flow over 300 cfm @ .600'' cam lift. 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. This head is 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. The best thing about this big flowing head is that all standard components such as rockers, lifters and intake manifold may be used! Sold in Pairs. Made in the USA!

      VALVE SPRING Specs
      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''
  • JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need!

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