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Bare Iron Heads
# 12304 x 2
Pro Action Cast Iron heads
This is a pair of New heads from a display unit
no issues, GOOD TO GO----
just looking for a motor !Intake Runner Volume (cc): 200cc Exhaust Runner Volume (cc): 74cc CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Intake Port Shape: Rectangular Intake Port Location: Standard Exhaust Port Shape: Rectangular Exhaust Port Location: Standard Spark Plug Style: Angle Intake Valves Included: No Intake Valve Diameter (in): 2.020 in. Exhaust Valves Included: No Exhaust Valve Diameter (in): 1.600 in. Valve Springs Included: No Damper Spring Included: No Retainers Included: No Locks Included: No Valve Stem Seals Included: No Rocker Arm Studs Included: No Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: No Valve Cover Mounting Style: Perimeter bolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 23 Exhaust Valve Angle: 23 Valve Guides Included: Yes Valve Guide Material: Bronze Valve Seats Machined: Yes Valve Seat Machine Style: 4-angle intake/4-angle exhaust Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Quantity: Sold individually. Notes: Steam holes must be drilled on 400 c.i.d. engines.
Pro Action cylinder heads by RHS deliver exceptional performance
gains for all small block Chevy owners. They come available in both
aluminum and cast iron and in a wide variety of intake runner and
combustion chamber volumes. Pro Action small block Chevrolet cylinder
heads feature straight or angled spark plug configurations, accept valve
spring diameters up to 1.550 in., and work with all popular small block
Chevy valvetrain components.
Additional features include:
* Multi-angled intake valve seats
* Radius exhaust valve seats
* Improved valve guide design
* Highly efficient water jacket
* Manganese intake valve guides
* Bronze exhaust valve guides
* Hardened valve seats
* Extra-thick deck faces
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