Dual valve cover bolt pattern, will accept either center bolt or perimeter bolt valve covers.
Specs & Information:
- Head Style: Small Block Chevy
- Material: A356 Aluminum Alloy
- Finish: Natural / Machined
- Valve Springs Type: Hydraulic Roller Dual Valve Spring (.600 Max Lift)
- Spark Plug Style: Straight
- Intake Valve Diameter: 2.020”
- Intake Runner Volume: 195cc
- Exhaust Valve Diameter: 1.600”
- Exhaust Port Volume: 76cc
- Combustion Chamber Volume: 64cc
- Intake Port Dims: 2.080” x 1.270” (Square)
- Exhaust Port Dims: 1.380” x 1.420” (Square)
- Intake Port Location: Stock
- Exhaust Port Location: Stock
- Valve Cover Bolt Pattern: Dual Pattern (Perimeter & Center Bolt)
- Accessory Bolt Holes: Yes
- Deck Thickness: .450”
- Intake Valve Angle: 23 deg.
- Exhaust Valve Angle: 23 deg.
- Valve Seats Machined: Yes
- Valve Seat Machine Style: 3-Angle
- Valve Seat Material: Hardened Ductile Iron
- Valve Spring Pocked Diameter: 1.580” OD (1.600” OD Max Machining)
- Valve Length: 5.015″ (+.100″ longer)
- Valve Stem Diameter: .3415″ – 11/32″
- Valve Guide Material: Intake = Manganese Bronze & Exhaust = Phosphor Bronze
- Valve Guides: 1/2″ OD
- Valve Guide length: 1.950″
- Valve Guide clearance: .0014″ – .002″ (with .3415 Dia valve stem)
- Rocker Studs: 3/8″
- Guide Plates: 5/16″ Adjustable
- Spark Plug Dimensions: 14mm x .750” with Gasket Seat (Autolite 3923 or NGK 4554)
- Steam Holes Drilled: No
- Block Use Type: Iron or Aluminum
Important Notes:
- This listing is for One Cylinder Head ONLY
Disclaimer:
This product is legal for off road use and non pollution controlled vehicles (1965 & older); however, it has not been tested or approved by the California Air Resources Board (CARB) for highway vehicles in the state of California. By purchasing this product, buyer agrees it will not be used on pollution controlled vehicles in California, or in a state with similar emissions regulations.
WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov