Chevrolet Performance Vortec Cylinder Heads 19436449

Name: Chevrolet Performance Vortec Cylinder Heads
Brand: Chevrolet Performance
SKU: NAL-19436449
Price: 838.38 USD
Availability: InStock
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Part Number: NAL-19436449

$838.38

Chevrolet Performance Vortec Cylinder Heads

Cylinder Head, Vortec, Assembled, Cast Iron, Black Powdercoat, 64cc Chamber, 170cc Intake Runner, Square Exhaust Port, Chevy, Small Block Gen I, Each
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Chevrolet Performance Vortec Cylinder Heads 19436449

NAL-19436449

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Part Number: NAL-19436449

Estimated Ship Date from OH, NV, GA: Monday 10/19/2026

$838.38

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Overview

Applications

Q&A

Instructions & Calculators

Estimated Ship Date from OH, NV, GA: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:

Chevrolet Performance

Manufacturer's Part Number:

19436449

Part Type:

Cylinder Heads

Product Line:

Chevrolet Performance Vortec Cylinder Heads

Summit Racing Part Number:

NAL-19436449

Combustion Chamber Volume (cc):

Intake Runner Volume (cc):

170cc

Cylinder Head Style:

Assembled

Cylinder Head Material:

Cast iron

Camshaft Style:

Hydraulic roller

Intake Port Shape:

Rectangular

Intake Valve Diameter (in.):

1.940 in.

CNC-Machined Combustion Chamber:

CNC-Machined Intake Runner:

CNC-Machined Exhaust Runner:

Intake Port Location:

Standard

Exhaust Port Shape:

Square

Exhaust Port Location:

Standard

Spark Plug Style:

Straight

Intake Valves Included:

Yes

Exhaust Valves Included:

Yes

Exhaust Valve Diameter (in.):

1.500 in.

Valve Springs Included:

Yes

Maximum Valve Lift (in.):

0.450 in.

Outside Diameter of Outer Spring (in.):

1.250 in.

Damper Spring Included:

Number of Springs Per Valve:

Single

Retainers Included:

Yes

Retainer Material:

Steel

Locks Included:

Yes

Lock Style:

7 degree

Valve Stem Seals Included:

Yes

Valve Stem Seal Style:

Umbrella

Rocker Arm Studs Included:

Yes

Rocker Arm Nut Thread Size:

3/8 in.-24

Rocker Arms Included:

Rocker Arm Nuts Included:

Guideplates Included:

Valve Cover Mounting Style:

Centerbolt

Accessory Bolt Holes Drilled:

Yes

Intake Valve Angle:

Exhaust Valve Angle:

Valve Guides Included:

Yes

Valve Guide Material:

Manganese bronze

Valve Seats Machined:

Yes

Cylinder Head Color:

Black

Finish:

Matte

Coating Type:

Powdercoated

Steam Holes Drilled:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Remanufactured:

Quantity:

Sold individually.

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.

Applications