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Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®

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Open Wheel

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Shop Open Wheel Engine At Speedway Motors

Speedway Motors is the open wheel racing engine authority! Whether you have a 360, 410, USAC or Outlaw series Chevy race engine, Speedway has every part Sprint and Midget racers need. Our large assortment of cylinder heads, camshafts and racing valve train components allows you to tailor your engine for any racing condition. Speedway also has a variety of durable forged rotating assemblies, dry sump oiling systems and Dart engine blocks that can survive the rigors of open wheel racing. Race and win with Speedway Motors!

Open Wheel, Cylinder Heads

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    • Racesaver Sprint Series spec Brodix cylinder heads
    • Fully assembled
    • Heads are certified serial numbered
    • Ready and legal for use on a 305 c.i. Racesaver engine
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                The Dart SHP Cylinder Head is cast from A356-T6 aluminum and designed  to work with most off the shelf components, so you won’t need to worry  about acquiring costly custom components.
    • Bolt on compatibility: Standard valve angle and spacing are retained to allow use of off the shelf pistons and valve train components
    • Multi-angle intake seats and radiused exhaust seats dramatically increase air/fuel flow
    • Hardened exhaust seats are compatible with unleaded gasoline
    • Manganese bronze valve guides extend cylinder head life
    • Assembled with 1.437 diameter valve springs
    • Straight spark plug configuration
    Complete head 200cc intake runner 64CC combustion chamber
    2.02/1.60 valves hydraulic roller springs 1.437 diameter
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    The industry’s most popular true high performance cast iron cylinder head has been continuously improved since its introduction over 20 years ago. With 200cc intake and 69cc exhaust ports, World’s Sportsman II cylinder heads offer 30-70 horsepower gains over OEM cast iron heads, yet are 50-state emissions legal.

    • Bolt on from 30 to 70 additional H.P. (Dyno Proven)
    • Combustion chambers available in 64cc
    • Available with either angle, or straight spark plugs
    • 200cc intake runners
    • Fully machined rocker cover rails
    • Higher, wider, raised roof intake runner with improved short turn radius

    Sportsman II Application Chart (GIF)

    824-1112 Instructions (PDF)

    Please specify cam lift in comments section when ordering heads.

    Assembled heads are built to order.

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    More performance and less expensive than rebuilding used heads. No more searching junkyards looking for cylinder heads for your motor.Looks like the smog head on the outside, but has racing head features like an extra-thick deck, screw-in rocker arm studs, and raised valve cover rails.

    • Large intake & exhaust runners like double hump head
    • Extra-thick decks and walls for improved reliability
    • Hardened steel exhaust seats for unleaded gasoline
    • Machined for 3/8" screw in studs (included)
    • Raised valve cover rails to eliminate oil leaks
    • Accepts early style perimeter or late model center bolt valve covers
    • Can be milled for large springs
    • Assembled Heads Add:
      • Heavy Duty S.S. Valves
      • Steel Retainers & Locks
      • 1.25" Hi-Po Valve Springs
      • 3 Angle Valve Job
    • 67 cc / 1.94 intake head is World Products # 4361
    • 76 cc / 1.94 intake head is World Products # 4360

    Head Flow @ .500 Lift
    220 intake, 151 exhaust (Super Flow 1050)
    232 intake, 161 exhaust (Super Flow 600)
    All heads flowed with a standard .750" intake plate, without exhaust tube, and 28" of water.

    S/R Head Application Chart (GIF)

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