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Brodix 1321003

Dragon Slayer DS 225 Series Cylinder Heads 225cc Intake Ports



Brodix 1321003

Part Number: 158-1321003

Dragon Slayer DS 225 Series Cylinder Heads
  • 225cc Intake Ports
  • 64cc Combustion Chambers
  • 2.080'' Intake / 1.600'' Exhaust Valves
  • 1.550'' Dia. Springs - 240# Seat Pressure
  • Steel Retainers
  • Angle Plug
  • Assembled, 2/pkg.
  • $1,893.70
    Ships 10/13/16
    if Ordered Today
    FREE Shipping
    Brodix 1321003 Dragon Slayer DS 225 Series Cylinder Heads 225cc Intake Ports $1,893.70

    Brodix 1321003 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: 550 lbs.; Closed Pressure: 240 lbs.; Installed Height: 1.950''; Max Lift: .700''
  • 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 245-C5414
  • 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 375-1406 or Cometic p/n 245-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)

  • Specifications:

    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    Yes
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    64
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    No
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    D-Port
    Exhaust Valve Angle
    23
    Exhaust Valve Diameter (in.)
    1.6
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    225
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    2.08
    Intake Valves Included
    Yes
    Lock Style
    10 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.7
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.55
    Quantity
    Sold as a pair
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nut Thread Size (in.)
    7/16"-20
    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
    Perimeter bolt
    Valve Guide Material
    Phosphorous 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 Seal Style
    Positive stop
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    1321003

    Ported Head Flows 300+ CFM at .600'' Lift!
    23° Intake & Exhaust Valve Angles

    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!

    1321003 - Brodix Small Block Chevy Dragon Slayer Series Aluminum Cylinder Heads is rated 3.0 out of 5 by 1.
    • 2016-10-01T08:19CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_1901278, PRD, sort_relevancy
    • clientName_jegs
    Rated 3 out of 5 by from brodix head quality isnt what it use to be Purchashed these heads complete and have spent several hundred dollars n many shop hours fixing them just to be able to use them. Brodix has absolutely no warranty. Rocker studs bent, chambers not close to claimed size, had to purchase special offset rocker arms and a set of adjustable guide plates just to get valve train lined up. And the valve guides were junk out of the box. Dont buy brodix unless u want to spend an extra 300-600 to fix them. Junk.
    Date published: 2015-02-15
    • 2016-10-01T08:19CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_1901278, PRD, sort_relevancy
    • clientName_jegs
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