Air Flow Research, the trusted name in high-performance cylinder heads for over 55 years, proudly offers the AFR Small Block Ford Top End Kit — a complete, precision-matched performance solution for the 302 and 351 Windsor platforms.

 

At the heart of this system are AFR’s Enforcer 185cc cylinder heads, featuring 2.020"/1.600" valves, precision-machined guides, and 3/8" rocker studs for unmatched reliability and flow consistency. These heads are pre-assembled and dyno-proven to deliver the ideal balance of street drivability and race-ready performance.

 

Each kit includes everything needed to complete the top end of your engine — intake manifold, gaskets, ARP hardware, polished valve covers, Autolite spark plugs, and all necessary fasteners and seals — ensuring a seamless installation experience and proper component compatibility.

 

Customers can further personalize their build by selecting from AFR’s proven Stage 1 or Stage 2 camshaft profiles, Morel OE or Link Bar lifter sets, and melonized distributor gear options. This flexibility allows builders to tailor their Windsor combination for anything from refined street manners to aggressive street/strip performance, all within a turnkey AFR-engineered package.

 

 

INCLUDED COMPONENTS (Part #3910 Configuration)

 

AFR Enforcer 185cc Cylinder Heads — 2.020"/1.600", 3/8" Rocker Studs (fully assembled)

SBF Intake Manifold

Intake, Exhaust, and Head Gaskets

ARP ½" Head Bolt Kit

Autolite #3924 Spark Plugs (8)

Valve Cover Gaskets

Polished Tall Valve Covers (Pair)

Guideplates

ARP Intake Manifold Bolts and Washers

12-Point Valve Cover Bolts and Washers

CUSTOMIZATION OPTIONS

• Choice of AFR Stage 1 or Stage 2 Camshaft (Andrews-ground profiles)

• Morel Hydraulic Roller Lifters — OE-Style or Link Bar Design

• Melonized Distributor Gear for steel-core cam compatibility

 

KEY BENEFITS

 

• Complete AFR-engineered system for the 302/351W — no guesswork required

• Seamless component integration for maximum reliability and performance

• Excellent throttle response, torque curve, and drivability across configurations

• Dyno-tested combinations validated with AFR Renegade and Enforcer heads

• Designed, assembled, and quality-checked in the USA

AFR’s NEW Enforcer Series Top End Kits are perfect for Small Block Ford owners looking for a sizely performance upgrade. We have created a package that leaves the guesswork behind, using premium AFR components you can trust. Our SBF Enforcer series kit uses our Enforcer Series 185cc cylinder heads and our low-profile single plane intake manifold designed for 8.2 deck blocks. Order one of these AFR top end kits today and put your engine on track for some serious horsepower.

Camshaft		SBF STG1 Hyd Roller Cam, 216/224 Lift 544/552 LSA 112 +4	6001
Lifter		Morel Retro fit Link Bar Hyd Roller Lifter- SBF	5970

AFR Small Block Ford Camshaft & Valvetrain Kits

Air Flow Research, the authority in high-performance cylinder heads and valvetrain technology for over 55 years, proudly introduces its complete line of Camshaft and Valvetrain Kits for the Small Block Ford 302 and 351 Windsor.

Developed in partnership with Andrews Products and Morel Lifters, these packages are precision-engineered to complement AFR’s Renegade CNC and Enforcer As-Cast cylinder heads—delivering proven horsepower gains, enhanced throttle response, and long-term reliability across a variety of street, strip, and power-adder applications.

Each kit is designed as a matched, drop-in system, ensuring optimal spring pressure, valve motion, and lifter performance for your specific cam profile. Whether you’re seeking the refined drivability and vacuum stability of the Stage 1 setup, or the aggressive midrange and high-RPM charge of the Stage 2, AFR’s integrated packages take the guesswork out of valvetrain selection.

KIT OPTIONS INCLUDE

• AFR Custom Camshaft — Precision-ground by Andrews Products, available in Stage 1 or Stage 2 profiles
• AFR Valve Spring Set — Matched for ideal seat/open pressures and coil-bind clearance
• Morel Hydraulic Roller Lifters — Choose from OE-style or Link Bar designs for performance or retrofit builds
• Melonized Distributor Gear — Ensures long-term durability with steel-core camshafts and proper distributor wear compatibility

KEY BENEFITS

• Engineered as complete systems for AFR Small Block Ford heads
• Eliminates compatibility issues and guesswork in cam/spring/lifter pairing
• Excellent throttle response, stability, and longevity under street or strip use
• Premium 8620 steel-core construction on all AFR camshafts (no additional cost)
• Dyno-tested performance validated by AFR’s in-house development team