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Brodix Big Block Chevy SR 20 Series Aluminum Cylinder Head


Brodix
Brodix Big Block Chevy SR 20 Series Aluminum Cylinder Head

Product images may differ from actual product appearance.

Flows 507 CFM at .900'' !
20°/4° Intake & 13°/4° Exhaust Valve Angles

The Brodix SR 20 Series cylinder head is at the cutting edge of conventional Big Block Chevy compatible technology. This new offering raises the bar to a level that is unreachable by the competition! Inspired by TPSA technology, the SR 20 Series surpasses any other head in its class by leaps and bounds. Utilizing a .500'' raised 440cc intake port with a 2.400'' intake valve, this head flows an unheard of 507 cfm. The exhaust port flows an amazing 335 cfm through only a 1.800'' valve. To allow for the newly designed 95cc combustion chamber, the intake valve angle of this head has been rolled to 20-degrees. This head requires pistons, valve covers, head studs, shaft rockers, and an intake manifold designed specifically for the SR 20 series cylinder head. As always, these heads come standard with all the fine qualities that only Brodix has to offer. 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. The industry standard has been taken to the next level with modernized CNC porting. 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. Made in the USA!

  VALVE SPRING   Specs
  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''



  • 3 Products
    SR 20 Series Cylinder Heads
  • 95cc Combustion Chambers
  • 100% CNC Ported

  • 158-2208000
    SR 20 Series Cylinder Head
  • CNC Ported
  • 440cc Intake Ports
  • 95cc Combustion Chambers
  • 2.400'' Intake / 1.800'' Exhaust Valve Sizes
  • Bare, Sold Individually
  • $2,282.99
    Order Today Ships 10/31/14
      158-2208100
    SR 20 Series Cylinder Head
  • CNC Ported
  • 440cc Intake Ports
  • 95cc Combustion Chambers
  • 2.400'' Intake / 1.800'' Exhaust Valves
  • 1.645'' Dia. Springs - 315# Seat Pressure
  • Titanium Retainers
  • Assembled, Sold Individually
  • $3,098.45
    Order Today Ships 10/31/14
    SR 20 Series Intake Manifold

    158-BM2020
    BM 2020 Intake Manifold
  • Fits SR 20 Series Cylinder Heads
  • 4500-Series Carb Flange
  • Standard Deck Block (9.800'')
  • 7.660'' Carb Pad Height
  • 4000-8500 RPM Range
  • $457.10
    Order Today Ships 10/31/14

    3 Products