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Chevrolet Performance Vortec Cylinder Heads
Cylinder Head, Early Model/Vortec, Assembled, Cast Iron, 66cc Chamber, 185cc Intake Runner, Rectangular Ports, Straight Plugs, Chevy, Small Block,Each
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Estimated Ship Date: Feb 18, 2027 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
19331470
Part Type:
Product Line:
Summit Racing Part Number:
NAL-19331470
Combustion Chamber Volume (cc):
66
Intake Runner Volume (cc):
185cc
Exhaust Runner Volume (cc):
65cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast iron
Camshaft Style:
Hydraulic roller
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.000 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
Rectangular
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.550 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.530 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Lock Style:
10 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arm Studs Included:
Yes
Rocker Arm Nut Thread Size:
3/8 in.-24
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Center and perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Dual drilled for Vortec and standard pre-1986 intakes.
Chevrolet Performance Vortec Cylinder Heads
Chevrolet Performance cast iron Vortec cylinder heads will fit 1958 and later small block Chevy engines, and offer a 20 to 40 hp increase over earlier cast iron small block heads. Features include fast burn combustion chambers, and a high-velocity port design. They require the use of a Vortec-style intake and self-aligning rocker arms, and come complete with valves, springs, and retainers.
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Some parts are not legal for use in California or other states with similar laws / regulations
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