289/302/347 - AFR ENFORCER-190cc/64cc - For Hydraulic Roller Cams
$1,248.00
Available
Variants:
7/16" Rocker Studs [AFR-FORD-274-7-16]3/8" Rocker Studs [AFR-FORD-274-3-8]
Ford SBF AFR Enforcer 190cc/64cc Ultra High Flow Cylinder Heads, 289 302 347 351W Engines
Setup for Hydraulic Roller Cams
(see AFR-FORD-272 for Flat Tappet Cams)
This sale is for one fully assembled set of heads.
Be sure of your cam type when selecting the heads for your application!
190cc Runners, 64cc Combustion Chambers
The AFR Enforcer Ford heads listed on AFR's site have an incorrect combustion chamber size 59cc (sic) and 185cc (sic) runners.
The actual chamber size is 64cc and the runner size 190cc. We have verified this at our shop.
Important Note
We allow you to choose between 3/8" or 7/16" genuine ARP rocker studs.
Adjustable AFR guide plates and head bolt spacers ("hats") are included for use on 351W engines.
The best flowing, best quality SBF aluminum heads on the market for the money.
The springs in these heads are set up to operate with hydraulic roller cams up to .600 lift. For those running flat tappet cams, see our other listings for these heads with part number AFR-FORD-272.
The AFR Enforcer Ford aluminum heads have 64cc combustion chambers with 190cc runners, 2.02/1.60 stainless valves. These heads are not built by Procomp and have no association with them in any way.
Spark plugs are in the standard Ford location.
Flow Numbers (Tested on Superflo 1020 Bench)
| Lift (in.) | Intake Flow (CFM) | Exhaust Flow (CFM) |
|---|---|---|
| 0.100 | 65 | 59 |
| 0.200 | 113 | 100 |
| 0.300 | 164 | 140 |
| 0.400 | 214 | 160 |
| 0.500 | 245 | 168 |
| 0.550 | 254 | 169 |
| 0.600 | 259 | 170 |
| 0.650 | 261 | 169 |
Hardware and Assembly
These heads come fully assembled with ARP rocker studs, PAC Racing springs, Viton valve seals, AFR adjustable guide plates, machined bead valve locks, hardened spring cups, and one-piece 8mm 21-4N stainless steel valves. They are also available bare for DIY enthusiasts.
What's it made of?
The AFR cylinder heads are made from AC4B alloy and tempered to T6 standards. You may have heard the alloys 355 and 356 being used on many heads. The alloy used on our heads is similar but slightly different. The AC4B alloy is commonly used by automakers in Europe and Japan. Take notice of the Rm value. This value indicates the tensile strength of an alloy. As you can see, it's higher than all the other common alloys in this chart. It's no surprise as to why we have never experienced a failure of any kind with these heads. Zero failures in the casting, zero failures in the seats and guides. We have sold over 5000 pairs of these heads over the past four years.
List of Standard Alloy Characteristics
|
Alloy +B4: H16 |
AC4B |
AC4C |
AC4CH |
AC4D |
AC7A |
|
|
Mechanical
|
Rm
|
345 |
285 |
260 |
320 |
245 |
|
R0.2
|
250 |
225 |
157 |
240 |
105 |
|
|
A
|
1.6 |
7.3 |
16.8 |
4.1 |
5.3 |
|
|
Temper |
T6 |
T6 |
T6 |
T6 |
F |
|
|
Features |
High strength, small elongation
|
Castability: good
|
Castability: good
|
Castability: good
|
Corrosion resistance: excellent,
|
|
|
Examples of
|
Crank cases,
|
Hydraulic parts,
|
Wheels,
|
Cylinder heads,
|
Parts for overhead contact lines,
|
|
Attention Valued Customers!
When it comes to highly technical questions, our sales team at Skip White Performance might not always have the detailed answers you're looking for, especially on topics like installation procedures or tuning.
For those with detailed or specific questions, we strongly recommend checking out automotive forums and communities where these products are frequently discussed. These forums are a treasure trove of information and can provide the expert advice you need. Additionally, YouTube has countless tutorials and guides that walk you through the installation process and other technical details.
Please note: While we're here to provide top-notch products, we cannot be held responsible for any damage resulting from the use or installation of this product. Make sure to do your research and proceed with caution!
Thank you for choosing Skip White Performance!
Disclaimer
Skip White Performance is not liable for any collateral damage or incidental issues arising from the use or misuse of our products. High-performance parts are intended for experienced professionals and enthusiasts. Use at your own risk.Product Information
| Product Type | Cylinder Head |
|---|---|
| Price (excl. tax) | $1,248.00 |
| Price (incl. tax) | $1,248.00 |
| Tax | $0.00 |
| Availability | Available |
| Shipping Cost | 0.0 |
| Retainers/Locks | Chromoly Steel Retainers, with 7° AFR brand machined locks. |
| Spark Plug | Autolite #3923 14mm x 3/4" reach |
| Spring Pockets OD (in) | 1.55 |
| Springs | Pacaloy 1.290 premium dual springs |
| Stud Girdle Included | No |
| Torque | Head Bolts = 65 ft/lb Rocker Studs = 55 ft/lb Manifold = 30 ft/lb |
| Valve Guide Clearance | .0014" - .002" (with our .3415 dia. valve stem) |
| Valve Guide Length (in) | 1.95 |
| Valve Guides | 1/2" OD Int = Mag-bronze Exh = Phos-bronze (.002" press) |
| Valve Guide Spacing | 1.890" moved .030" from stock |
| Valve Length (in) | 5.015" (+.200") for hydraulic roller cams |
| Valve Seat Angles | Int = 32° - 45° - 60° - 70° Exh = 37° - 45° - radius |
| Valve Seat Dimension | Standard |
| Valve Seats | Hardened Ductile Iron, .006" press |
| Valve Stem Diameter (in) | .3415 |
| Block | SBF |
| Brand | Air Flow Research (AFR) |
| Exhaust Port Location | Stock location and bolt pattern |
| Exhaust Port Volume (cc) | 70 |
| Exhaust Valve Diameter (in) | 1.6 |
| Head Bolts | ARP 154-3601 for 289, 302, and 347 not included. (154-3603 for 351W not included) |
| Head Gasket | Felpro# 10112 |
| Intake Gasket | Felpro# 1262 |
| Intake Port Dimensions (in) | 2.0" x 1.12" |
| Intake Port Location | Stock |
| Intake Port Volume (cc) | 190 |
| Intake Valve Diameter (in) | 2.02 |
| Manifold | Most any. Our line of intakes fit very well on the AFR Enforcer heads. |
| Milling | Min. Down to 58.5cc or 64.5 = .060" |
| Push Rod Guide Plate | AFR adjustable guide plates included. (for 5/16" Diameter Pushrods) |
| Valve Train | STD SBF |
| Weight | 60 |
| Number of reviews | 0 |
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