AFR Renegade Ford 302W 351W Windsor Cylinder Heads 165cc CNC ported Hydraulic Roller Street SBF, 1.900" valve,

AFR 1399 Renegade 165cc SBF Street 20 Degree "Street" Ford Windsor Heads

AFR 1399 (Air Flow Research) Ford Windsor heads are a Street Series cylinder head for 289 302W and upto 351W Windsors operating upto 6000 RPM.

These AFR 1399 Heads are the only AFR heads that are compatible with the OEM piston valve relief. Recommended for street, towing, or street/strip engines with displacements from 289 Windsor up to 351 cubic inches, operating up to 6000 RPM

Part of the AFR 165 SBF Renegade "Street" heads are these Windsor heads feature CNC ported intake runners, exhaust ports, & combustion chambers. Ideal for towing and Street driveability performance. Made of high-quality aluminum, allowing for a lighter-weight build. These AFR Windsor heads include 8mm valve stems paired with 1.900 in. intake and 1.600 in. exhaust valves. 

AFR Heads have been engineering cylinder heads that deliver unmatched flow and power output for over thirty years. Manufactured with advanced CNC porting technology, AFR Windsor heads are flow-tested and rigorous quality control checks & balances.

Quantity              Set of 2 / PAIR

AFR Model:          AFR 1399

Series:                Renegade - Street

Application:        "Street" Towing and Street Performance

Camshaft Type:   Assembled suits Hydraulic Roller with PAC Dual Valve Springs

Valve Spring Maximum Lift:    0.600" in

Horsepower:       Upto 6300-6500 RPM with less than 235@050 duration.

CNC Ported:        Yes - Intake, Exhaust & Chambers

Combustion Chamber Volume:   58 cc

Valve Seats: Competition 5-angle Valve Job

Deck Thickness: 0.750 in

Minimum Bore Diameter:  4.000"

Intake Valve Diameter:   1.900" in

Exhaust Valve Diameter: 1.600" in

Guide Plates Included:    Yes - 5/16"

Intake Runner Volume:    165cc

Exhaust Runner Volume:  68cc

Material:               Aluminium

Rocker Stud Diameter:    ARP 3/8"

Valve Stem Diameter      8mm

Flat Mill:   .006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc)

Valve Springs:   PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams

Notes:  Cylinder heads are "Street" ported. 

AFR 1399 Flow Figures

AFR Renegade 1399 165cc Street Head Flow Chart

                .200        .300        .400        .500        .550        .600

Int           135         200         240         251         255         260

Exh          122         163         192         208         212         215

Test conducted at 28" of water (pressure) on Superflow 600

Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe