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Top Street Performance

Ford Small Block Flat Tappet Assembled Aluminum Cylinder Head

Ford Small Block Flat Tappet Assembled Aluminum Cylinder Head

SKU: JM4320

$600.00
$600.00
Shipping calculated at checkout.

Low 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

  • Fits Ford Small Block Windsor applications including 289, 302 and 351W engines when applicable
  • 185 cc intake runners, 60 cc chambers for improved airflow and power potential
  • Assembled with performance valves, springs, retainers, locks and seals for easier installation
  • Lightweight aluminum construction improves heat dissipation versus factory iron castings

Description

Upgrade your Ford Small Block Windsor with assembled aluminum cylinder heads engineered to improve airflow, combustion efficiency, and horsepower potential. Featuring 185 cc intake runners, 60 cc combustion chambers, these heads are built for street, strip, and performance engine builds that need better breathing than stock castings.

Improved Airflow & Power Potential
Optimized runner and chamber design helps move more air through the engine, improving throttle response, torque, and top-end horsepower potential across the RPM range.

Assembled Valve Train Setup
Delivered assembled with matched valves, springs, retainers, locks, and seals where specified, helping simplify installation for flat tappet camshaft applications.

Aluminum Construction
Lightweight aluminum construction reduces weight compared to factory iron heads while improving heat dissipation for more consistent performance under demanding conditions.

Built for Street & Performance Builds
Ideal for performance rebuilds, restorations, and upgraded engine combinations. Always verify piston-to-valve clearance, camshaft compatibility, intake manifold fit, and header clearance before final installation.

Specs

Assembled Yes
CNC Ported No
Combustion Chamber Style Heart
Combustion Chamber Volume 60 cc
Deck Height Standard
Deck Thickness Standard
Exhaust Crossover No
Exhaust Port Location Standard
Exhaust Port Shape Rectangle
Exhaust Valve Material Stainless Steel
Finish Natural
Grade Type Performance
Intake Port Location Standard
Intake Port Shape Rectangle
Intake Runner Volume 185 cc
Intake Valve Material Stainless Steel
Material Aluminum
Quantity Sold Individually
Valve Guide Material Bronze
Valve Seat Material Steel
Valve Spring Retainer Material Chromoly Steel
Valve Springs Included No
Valves Included Yes

Engine Fitment

COMPATIBLE WITH
FORD SMALL BLOCK WINDSOR V8
• 4.7L / 289 in³
• 5.0L / 302 in³
• 5.8L / 351 in³ (351W Windsor)

COMMON VEHICLE APPLICATIONS
Ford Mustang (1965–1995 289 / 302 / 351W equipped)
Ford F-Series (Small Block Windsor equipped)
Ford Bronco (Small Block Windsor equipped)
Ford Falcon / Fairlane (Small Block Windsor equipped)
Mercury Cougar (Small Block Windsor equipped)

NOTES

Designed for Ford Small Block Windsor engine platforms.

Cylinder head sold individually (purchase quantity of 2 required for complete engine).

Will not fit 351C Cleveland, 351M, 400M, FE, or 385-series Big Block Ford engines.

Q&A

Emissions Notice

This product is legal for off road use and non pollution controlled vehicles (1965 & older); however, it has not been tested or approved by the California Air Resources Board (CARB) for highway vehicles in the state of California. By purchasing this product, buyer agrees it will not be used on pollution controlled vehicles in California, or in a state with similar emissions regulations.