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Brodix 2321018
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Brodix Dragon Slayer DS 365 Big Block Chevy Cylinder Head

158-2321018

made in usa
Free Shipping Ships directly from the manufacturer on 10/21/19
Save $10 off $199, $45 off $499, $100 off $999. Promo Code: FALLFUN exclusions apply

$1,082.90
Brodix Dragon Slayer DS 365 Big Block Chevy Cylinder Head $1,082.90
Out of stock
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Dragon Slayer DS 365 Series Cylinder Head
  • 320cc Rectangle Intake Ports
  • 115cc Combustion Chambers
  • 2.300" Intake / 1.880" Exhaust Valves
  • 1.550" Dia. Springs - 255# Seat Pressure
  • Titanium Retainers
  • Assembled, 1/pkg.
  • Brodix 2321018 Details

    Dragon Slayer DS 365 Series Cylinder Heads

  • 365cc Intake Port Volume
  • 1.550" Diameter Valve Springs - 610# Open, 255# Closed Spring Pressure
  •  

    Cylinder Head Specifications

    • Intake Port Volume: 365cc - Rectangle Port
    • Combustion Chamber Volume: 115cc
    • Stainless Steel Valves: 2.300" dia. x 5.468" o.a.l. Intake / 1.880" dia. x 5.394" o.a.l. Exhaust ( 11/32" Stem Diameter )
    • Valve Springs: Double Springs; 1.550'' Diameter - Open Pressure: 610 lbs.; Closed Pressure: 255 lbs.; Installed Height: 1.950"; Max Lift: .700"
    • Spring Retainers: 1.550" 10° Titanium
    • 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: Brodix p/n 158-MG2001, Cometic p/n 245-C5428, Fel-Pro p/n 375-1252-3
    • Head Gasket: 4.310'' Bore - Fel-Pro p/n 375-1027, Cometic p/n 245-C5432; 4.540'' Bore - Fel-Pro p/n 375-1017, Cometic p/n 245-C5433
    • Exhaust Gasket: Fel-Pro p/n 375-1411 or Cometic p/n 245-C5429
    • Head Bolts: ARP p/n 070-135-3606, Manley p/n 660-42192 Bolts / 42102 Washers
    • Head Studs: ARP p/n 070-235-4702 (12-point)
    • Spark Plug Specs: 14mm Thread, .750'' (3/4'') Reach, Gasket Seat
    • Valve Angle: 26° and 4° Intake, 17° and 4° Exhaust
    • Angle Milling: .0066'' per cc
    • Flat Milling: .0050'' per cc
    • Pushrod Slots: Standard
    • Pushrods: Check pushrod clearance with head installed on the engine block before final assembly
    • Stud Girdle: Standard BB-Chevy, Brodix p/n 158-1230
    • Rocker Arms: Standard BB-Chevy
    • Lifters: Standard
    • Pistons: Standard BB-Chevy
    • Valve Centerline: Standard BB-Chevy
    • Exhaust Pattern: Raised .600"
    • Spring Pockets: May not be cut any larger or deeper than 1.625''
    • Accessory Bolt Holes are Drilled
    • Recommended Intake Manifold: Brodix BM 2000 (p/n 158-BM2000) / HV 2001 (p/n 158-HV2001)

    Proven Competition Head That Works with
    Most Standard Big-Block Chevy Components!

    26°/4° Intake & 17°/4° Exhaust Valve Angles

    The new DS 320 and DS 365 Big Block Chevrolet compatible cylinder heads are the latest addition to the Dragon Slayer series. These heads require no porting, making them the most powerful heads in their class. The DS 320 series has a 320cc intake port and flows over 370 cfm and the DS 365 series flows over 392 cfm with only the bowls blended and the intake ports matched to the gasket. Available with a 110cc, 115cc or 119cc combustion chamber. These cylinder heads accept all standard pistons, intake manifolds, and rocker arms. The exhaust ports are raised .600'' higher than stock. Valve cover rails are now raised to assure no oil leakage. 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. Other features include a thick deck surface that is compatible with nitrous, drilled and tapped holes on the ends for standard drive accessories, phosphorous bronze valve guides and hardened valve seats installed for unleaded fuel. Sold Individually, 1/pkg.

     

      VALVE SPRING   Specs
      1.550'' Diameter Valve Spring for Mechanical Roller Lifter Cam
    • Spring Pressure Open: 610 lbs.
    • Spring Pressure Closed: 255 lbs.
    • Installed Height: 1.950''
    • Max Lift: .700''
      1.625'' Diameter Valve Spring for Mechanical Roller Lifter Cam
    • Spring Pressure Open: 745 lbs.
    • Spring Pressure Closed: 250 lbs.
    • Installed Height: 2.050''
    • Max Lift: .800''
      1.645'' Diameter Valve Spring for Mechanical Roller Lifter Cam
    • Spring Pressure Open: 915 lbs.
    • Spring Pressure Closed: 315 lbs.
    • Installed Height: 2.100''
    • Max Lift: .850''

     

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