Made in USA
Cylinder Head Small Block Chevy
Product Discontinued
JEGSPART NUMBER: 555-514004

Cylinder Head Small Block Chevy

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

180cc Intake Runner
    Cylinder Head
  • Small Block Chevy
  • 180cc Intake Ports
  • 72cc Combustion Chambers
  • 2.020" Int./1.600" Exh. Valves
  • 1.250" Valve Springs, .525" Max Lift
  • 3/8" Rocker Studs
  • Angle Plug
  • Assembled, Sold Individually

    Material
    Casting A356-A Virgin Grade, Heat Treated to T-6
    Valve Guides Manganese Bronze
    Valve Seats Alloy, For use with Unleaded Gasoline
    Valve Train
    Rocker Stud Size 3/8"-24
    Guide Plates 5/16" Flat
    Pushrods 5/16" Hardened, Must Check Length
    Spring Retainers Chrome Moly Steel (7 Degree)
    Valve Locks 7 Degree (HD)
    Spring Locator I.D. Locator - 1.490" x 0.060"
    Valve Springs
    Specifications Pressure
    Spring O.D. Type Max Lift Coil Bind Seat Load Open Load
    1.250" Single 0.525" 1.160" 100# @ 1.775" 320# @ 1.200"
    Accessories
    Spark Plugs 14mm x 3/4" Reach - Gasket Seat - 5/8" Hex
    Head Bolts JEGS 555-83400 or equivalent
    Head Studs Standard SB-Chevy
    Stud Girdle JEGS 555-20510 or equivalent
    Rocker Arms Standard SB-Chevy for 3/8"-24 Stud
    Head Gasket JEGS 555-210041 or equivalent
    Accessory Bolt Locations Stock Placement
    Flow Specifications
    2.020"
    (Stainless Steel)
    1.600"
    (Stainless Steel)
    Valve Length 4.910" 4.910"
    Valve Stem Diameter 11/32" 11/32"
    Valve Stem Seal Diameter 0.530" (PTFE) 0.530" (PTFE)
    Port Dimension 2.200"H x 1.300"W 1.530"H x 1.545"W (D-Shape)
    Flow Rate 263 CFM @ 0.600" Lift (28" H20) 213 CFM @ 0.600" Lift (28" H20)
    Gasket JEGS 555-210000
    or equivalent
    JEGS 555-210052
    or equivalent
    Torque Specification
    Rocker Studs 45 ft/lbs.
    Manifold Bolts 35 ft/lbs.
    Head Bolts or Studs Per Manufacturers Specifications
BrandJEGS
Package Height8.0
Package Width9.2
Package Length21.1
Weight28.88 PG
Part CategoryPerformance Parts
Vendor Part Number514004
Package Qty1
Package TypeEA
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