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Chevrolet Performance Small Block Chevy Large Port Vortec Cylinder Heads


Chevrolet Performance
Chevrolet Performance Small Block Chevy Large Port Vortec Cylinder Heads

Small Block Chevy Bow Tie Large Port Cast Iron Vortec Cylinder Heads are Chevrolet Performance's most powerful cast iron cylinder head designed for street or race applications in the 400-450 horsepower range. As upgraded production heads, they have a thicker deck surface, large runners, bigger valves, and combustion chambers with exceptional low-lift flow numbers. These cylinder heads provide Chevy's Fast Burn performance in an affordable cast iron option.

Features
  • Cast iron
  • No heat risers
  • Intake Ports: 225cc
  • Exhaust Ports: 77cc
  • Deck Thickness: .450''
  • Popular in short track racing
  • Combustion Chambers: 66cc
  • Hardened exhaust valve seats
  • Machined for 2.00''/1.55'' valves
  • Improved airflow (281 cfm at .600'')
  • Drilled & tapped for 7/16''-14 screw-in studs
  • .530'' maximum valve lift without modification
  • Cast Logos: Vortec (intake port roof), GM (intake port floor), Bow Tie (exhaust side)
  • Dual bolt patterns for: perimeter and centerbolt valve covers & early model and Vortec intake manifolds

    JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.



  • 3 Products
    Bow Tie Large Port Vortec Cylinder Heads
  • Small Block Chevy
  • Sold Individually

  • 809-25534445
    Large Port Cast Iron Vortec Cylinder Head
  • Bare
    More info on Chevrolet Performance 25534445
    • FREE
    • SHIPPING
      & HANDLING!
  • $309.99
    Ships

    809-25534446
    Large Port Cast Iron Vortec Cylinder Head
  • Assembled
    More info on Chevrolet Performance 25534446
    • FREE
    • SHIPPING
      & HANDLING!
  • $509.99
    Order Today Ships 04/25/14
    Bow Tie Large Port Vortec Cylinder Head Kit

    809-25534446K
    Large Port Cast Iron Vortec Cylinder Head Kit
    Includes:
  • Pair of Cylinder Heads #809-25534446
  • Head Gaskets #555-210041
  • Head Bolts #555-83400
  • Intake Manifold #555-513002
  • Intake Gaskets #555-210003
  • Intake Bolts #555-83201
    More info on Chevrolet Performance 25534446K
    • FREE
    • SHIPPING
      & HANDLING!
    Easy Kits
  • $1,357.99
    Order Today Ships 04/25/14

    3 Products