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Price: $408

This item has been shown 646 times.

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"RHS"

SBC Chevy

Pair Aluminum

New installed blem heads

# 12053

23 deg

64cc chambers

180cc inlets

This is a pair of new bare alum heads

that were in the process of being intalled when the shop found that the Intake manifold bolt holes were machined a little off center.

see the pics.

See all our Other RHS heads

and parts HERE !

Cylinder Head Style: Bare Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 64 CNC-Machined Combustion Chamber: No Intake Runner Volume (cc): 180cc 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: Square 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: Yes 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: Manganese bronze Valve Seats Machined: Yes Valve Seat Machine Style: 4-angle intake/4-angle exhaust Valve Seat Material: Steel tungsten alloy Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Quantity: 2

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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Make: CHEVROLET Beginning Year: 1962 Ending Year: 1969 Engine Type: V8 Liter: 5.4 CID: 327 Engine Size: 5.4L/327 Engine Family: Chevy small block Gen I Rocker Arm Mounting Style (application): Stud Make: CHEVROLET Beginning Year: 1967 Ending Year: 1969 Engine Type: V8 Liter: 5.0 CID: 302 Engine Size: 5.0L/302 Engine Family: Chevy small block Gen I Rocker Arm Mounting Style (application): Stud Make: CHEVROLET Beginning Year: 1967 Ending Year: 1986 Engine Type: V8 Liter: 5.7 CID: 350 Engine Size: 5.7L/350 Engine Family: Chevy small block Gen I Rocker Arm Mounting Style (application): Stud Make: CHEVROLET Beginning Year: 1970 Ending Year: 1980 Engine Type: V8 Liter: 6.6 CID: 400 Engine Size: 6.6L/400 Engine Family: Chevy small block Gen I Rocker Arm Mounting Style (application): Stud Application Notes: Steam holes must be drilled on 400 c.i.d. engines.




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