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180cc Intake Runner
- Cylinder Head
- Small Block Chevy
- 180cc Intake Ports
- 64cc 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 equivalentJEGS 555-210052
or equivalentTorque Specification Rocker Studs 45 ft/lbs. Manifold Bolts 35 ft/lbs. Head Bolts or Studs Per Manufacturers Specifications
BrandJEGS
Package Height8.2
Package Width9.1
Package Length21.1
Weight28.65 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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