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$661.99
RHS 12055-01 Small Block Chevy Cylinder Head Assem., 200cc/Flat Tappet
RHS 12055-01 Small Block Chevy Cylinder Head Assem., 200cc/Flat Tappet

RHS 12055-01 Small Block Chevy Cylinder Head Assem., 200cc/Flat Tappet

Chevy Small Block V8, Assembled Cylinder Head Style, Aluminum, Natural, Angle Spark Plug Style

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RHS 12055-01 Small Block Chevy Cylinder Head Assem., 200cc/Flat Tappet
RHS 12055-01 Small Block Chevy Cylinder Head Assem., 200cc/Flat Tappet
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We estimate this item will ship on or before July 9th.
Part # 5901205501
$661.99
each
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Racing Head Service to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Cylinder Head Style:
Assembled
Material Type:
Aluminum
Finish:
Natural
Combustion Chamber Volume:
64cc
Intake Runner Volume:
200cc
Exhaust Runner Volume:
74cc
Combustion Chamber Volume Range:
60cc - 69cc
Intake Runner Volume Range:
200cc - 209cc
Exhaust Runner Volume Range:
70cc - 79cc
CNC-Machined Runners:
No
CNC-Machined Combustion Chamber:
No
Spark Plug Style:
Angle
Intake Port Shape:
Rectangle
Intake Port Location:
Standard
Exhaust Port Shape:
Square
Exhaust Port Location:
Standard
Intake Valve Diameter:
2.02"
Intake Valves Included:
Yes
Intake Valve Angle:
23
Exhaust Valve Diameter:
1.6"
Exhaust Valves Included:
Yes
Exhaust Valve Angle:
23
Valve Spring Included:
Yes
Spring Diameter:
1.43"
Damper Spring Included:
No
Number of Springs Per Valve:
Single
Maximum Lift:
0.55"
Machined for O-Ring:
No
Valve Seat Machine Style:
4-angle intake/4-angle exhaust
Valve Seats Machined:
Yes
Valve Seat Material:
Steel tungsten alloy
Valve Stem Seals Included:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Locks Included:
Yes
Lock Style:
10 Degree
Retainers Included:
Yes
Retainer Material:
Steel
Guideplates Included:
Yes
Guideplate Pushrod Size:
0.3125"
Rocker Arms Included:
No
Rocker Arm Studs Included:
Yes
Rocker Arm Nuts Included:
No
Oiling Style:
Through Pushrod
Heat Crossover:
No
Steam Holes Drilled:
No
Accessory Bolt Holes Drilled:
Yes
Sold in Quantity:
Each
MFG. Part #:
12055-01
GTIN Code:
036584204183

Info

  • Fully Assembled w/ COMP Cams Components For Flat Tappet Cams Up To .560" Lift

  • 200cc Intake Runners & 64cc Chambers

  • 2.020" IN. & 1.600" EX. Valve Sizes

  • Angled Spark Plug Holes

  • Single Aluminum Head

Pro Action Small Block Chevy Aluminum Heads

These heads deliver significant gains in both power and torque for all Small Block Chevrolet applications - right out of the box. Pro Action SBC Aluminum Heads are the perfect choice for a variety of performance engines, including street rod, muscle car, oval track and drag racing applications. Standard features include a multi-angle Serdi valve job, cast aluminium construction, multi-angle intake and radiused exhaust valve seats for up to 5% more airflow than the competition. Advanced port/runner/chamber design and modified water jackets for optimal performance & added reliability. Valve springs up to 1.550" and all standard rocker arms and valve train components are accepted.

  • Advanced port/runner/chamber design & modified water jacket for improved durability, optimal performance & added reliability

  • Standard features include multi-angle intake & radiused exhaust valve seats for up to 5% more flow than the competition

  • Offered w/ 180cc, 200cc, 220cc & 235cc intake runners w/ 64cc or 72cc combustion chambers to fit your exact needs

  • Bare or fully assembled w/ premium COMP Cams components

Some parts are not legal for use in California or other states with similar laws/regulations

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