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Top Street Performance

Chevy Big Block Aluminum Cylinder Head

Chevy Big Block Aluminum Cylinder Head

SKU: SKU: JM4200

Regular price $896.30
Sale price $896.30 Regular price $1,018.53
Shipping calculated at checkout.

In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Compatible with Chevy Big Block engines.
  • Composed of lightweight aluminum

Description

If you're looking to rebuild your old Big Block Chevy powerplant, you can't go wrong with a set of performance cylinder heads. TSP's heads are cast from premium aluminum for improved weight and heat management over the old iron. They are engineered and are not CNC-ported for maximum horsepower and torque.

This bare assembly is a great starting point for a performance engine build. It's designed for maximum flow and performance in the hands of a skilled builder or machine shop. It features a thick deck to help resist warping and comes with threaded bolt holes on the ends for an easy install.

TSP cylinder heads are sold individually as bare assemblies. To achieve maximum performance, it is recommended that a licensed engine builder or machine shop coordinate matching short block and engine internals.

Specs

Assembled No
Combustion Chamber Style Heart
Combustion Chamber Volume 124cc
Cylinder Head Finish Natural
Cylinder Head Material Aluminum
Exhaust Port Location Raised
Exhaust Port Shape Rectangular
Intake Port Location Standard
Intake Port Shape Rectangular
Intake Runner 345cc
Quantity Sold Individually
Valve Guide Material Bronze

Engine Fitment

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 6.5 L / 396 in3
• 6.6 L / 402 in3
• 7.4 L / 454 in3

NOTE: Cylinder head sold individually

Q&A

What engines are these cylinder heads compatible with?
These cylinder heads are designed for COMPATIBLE WITH, CHEVROLET BIG BLOCK V8 GEN. II (MARK IV).


Are these heads assembled or bare?
These cylinder heads are sold bare (not assembled). Please refer to the product details for full specifications and included components.


What is the combustion chamber size?
These cylinder heads feature a combustion chamber volume of 124cc, which can affect compression ratio and overall engine performance.


What material are these cylinder heads made from?
They are made from aluminum, which helps reduce weight and improve heat dissipation.


Will these cylinder heads improve engine performance?
Yes, performance cylinder heads are designed to improve airflow, which can increase horsepower, torque, and overall engine efficiency.


Are these a good upgrade over stock cylinder heads?
Yes, these cylinder heads are a strong upgrade for improving airflow and overall engine performance compared to factory heads.


Do these heads require additional components for installation?
Depending on your setup, additional components such as gaskets, pushrods, valve train components, or tuning may be required.


Are these suitable for street or race applications?
These cylinder heads can be used for street performance and performance builds depending on the overall engine combination.

Emissions Notice

This Top Street Performance (TSP) product is designed for racing and off-road competition use only. It is not legal for use on public roads or emissions-controlled vehicles and does not comply with federal, state, or local emissions regulations. The buyer assumes all responsibility for legal use and installation.

What is a Emissions-Controlled Vehicle?
"An emissions-controlled vehicle is any vehicle equipped with a factory-installed emissions control system designed to reduce air pollution. These systems include catalytic converters, oxygen sensors, EGR (Exhaust Gas Recirculation) valves, and diesel particulate filters (DPF). Most vehicles manufactured after 1975 are considered emissions-controlled and must comply with federal and state emissions laws when used on public roads."