Chevrolet Performance Bowtie Aluminum Cylinder Heads 19331430

Name: Chevrolet Performance Bowtie Aluminum Cylinder Heads
Brand: Chevrolet Performance
SKU: NAL-19331430
Price: 1944.11 USD
Availability: InStock
Rating: 0 (0 reviews)

Write the First Review

Part Number: NAL-19331430

$1,944.11

Chevrolet Performance Bowtie Aluminum Cylinder Heads

HEAD, CYL
See More Specifications | Check the Fit

Chevrolet Performance Bowtie Aluminum Cylinder Heads 19331430

NAL-19331430

Not Yet Reviewed

Part Number: NAL-19331430

Estimated Ship Date from Texas: Monday 10/26/2026

$1,944.11

Back to Results

Overview

Applications

Q&A

Instructions & Calculators

Estimated Ship Date from Texas: Monday 10/26/2026 Would you rather pick it up?

Overview

Brand:

Chevrolet Performance

Manufacturer's Part Number:

19331430

Part Type:

Cylinder Heads

Product Line:

Chevrolet Performance Bowtie Aluminum Cylinder Heads

Summit Racing Part Number:

NAL-19331430

Combustion Chamber Volume (cc):

118

Intake Runner Volume (cc):

310cc

Exhaust Runner Volume (cc):

118cc

Cylinder Head Style:

Assembled

Cylinder Head Material:

Cast aluminum

Camshaft Style:

Solid roller

Intake Port Shape:

Rectangular

Intake Valve Diameter (in.):

2.250 in.

CNC-Machined Combustion Chamber:

CNC-Machined Intake Runner:

CNC-Machined Exhaust Runner:

Intake Port Location:

Standard

Exhaust Port Shape:

D-port

Exhaust Port Location:

Raised

Intake Valves Included:

Yes

Exhaust Valves Included:

Yes

Exhaust Valve Diameter (in.):

1.880 in.

Valve Springs Included:

Yes

Maximum Valve Lift (in.):

0.720 in.

Outside Diameter of Outer Spring (in.):

1.567 in.

Damper Spring Included:

Yes

Number of Springs Per Valve:

Single (inner spring)

Retainers Included:

Yes

Locks Included:

Yes

Valve Stem Seals Included:

Yes

Valve Stem Seal Style:

Positive stop

Rocker Arm Studs Included:

Yes

Rocker Arm Nut Thread Size:

7/16 in.-20

Rocker Arms Included:

Rocker Arm Nuts Included:

Guideplates Included:

Yes

Guideplate Pushrod Size:

3/8 in.

Valve Cover Mounting Style:

Perimeter bolt

Accessory Bolt Holes Drilled:

Yes

Valve Guides Included:

Yes

Valve Seats Machined:

Yes

Cylinder Head Color:

Natural

Finish:

Natural

Steam Holes Drilled:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Remanufactured:

Quantity:

Sold individually.

Notes:

Replacement cylinder head for NAL-19331585.

Chevrolet Performance Bowtie Aluminum Cylinder Heads

Chevrolet Performance Bowtie aluminum cylinder heads offer an ideal combination of street drivability and drag-strip performance. These aluminum cylinder heads provide a broad power range with ample low-end torque, along with excellent throttle response, good mid-range torque and enough top-end power to beat your competitors to the finish line. Designed for high performance applications, the Bowtie Street cylinder heads are manufactured to precise machining tolerances, with thick deck surfaces and high-velocity airflow passages. They are available in either rectangular or oval intake port configurations. The rectangular intake ports are larger in volume and have been designed to enhance high-rpm horsepower, which makes them best for vehicles that see frequent drag-strip action. Cylinder heads with oval intake ports are smaller in volume and designed for greater low-rpm torque, therefore they're best for street applications, where lots of bottom end, off-the-line power is desired.

Bowtie Street Cylinder Head Technical Notes:

* Made from 356-T6 aluminum
* Available in rectangular or oval-port designs
* Will work on Mark IV and Gen V, VI blocks
* 9/16 in. thick decks
* As-cast intake and exhaust ports
* No heat risers
* 1.55 in. valve spring seat diameter
* Threaded inserted 7/16 in. screw-in rocker stud holes
* Designed for use with 3/8 in. pushrods
* Use intake gasket P/N 12366985 and bolt kit P/N 12367959
* Use head gasket P/N 12363414 for bores to 4.370 in. and P/N 12363413 for bores 4.470 in. to 4.540 in. (Mark IV)
* Use head gasket P/N 12363412 for bores to 4.370 in. and P/N 12363411 for bores 4.470 in. to 4.540 in. (Gen V, VI)
* Use head bolt kit P/N 12367779

Bowtie Oval-Port Aluminum Cylinder Head Assembly:

* Completely assembled with 2.250 in./1.880 in. 11/32 in. stem valves
* 290cc oval intake ports
* 110cc exhaust ports
* 110cc combustion chambers