AFR Cylinder Heads

Custom Piston Worksheet & Order Form (pdf)

Home > Cylinder Heads > Air Flow Research Cylinder Heads > Ford - Small Block > Small Block Ford - Enforcer Series >

AFR Cylinder Heads_Enforcer_Ford Small Block_20°_185cc_59cc_Stud Mount_Assembled

Photo may not be actual product

Alternative Views:

Price $648.00

Product Code: AFR-1351

Description

Technical Specs

The all new AFR 185cc Enforcer cylinder heads for Ford Windsoe engines are a permanent mold casting and feature an “As‐Cast” finish on the intake runners, exhaust runners and combustion chambers. This budget friendly offering is available as a “No Parts” head or can be ordered fully assembled with the same great components found in our higher end cylinder heads; incliding ARP rockers studs, PAC Racing springs, Viton valve seals, hardened spring cups, ductile Iron seats, AFR adjustable guide plates and 21-40 stainless steel valves. Sold as a single piece, 2 pieces are required per engine.

185cc CNC Ported Intake Runners
A356 Aluminum
Stud Mounted Rocker Arms
8mm Bronze Valve guides
3 angle valve job
Precision CNC machining
Multiple spring options

Assembled heads feature:

8mm Bead Lock Valves
PAC Racing Valve Springs
3/8 ARP Rocker Studs
Adjustable guide plates

www.P65Warnings.ca.gov

Description
Item Code	AFR-1351
Vendor	Air Flow Research
Product Type	Cylinder Heads
Product Model	Enforcer
Engine Family	Ford Windsor 20°
Weight	28

Included Components

Combustion Chamber	As Cast
Intake Ports	As Cast
Exhaust Ports	As Cast
Valve Job	3 Angle
Intake Valves	8mm Bead Lock Intake Valve - 2.020 x 4.900 Overall Length
Exhaust Valves	8mm Bead Lock Intake Valve - 1.600 x 4.950 Overall Length
Valve Springs	PAC Racing Spring - 1.290 OD - Hydraulic Roller Dual Valve Spring - 140 lbs on seat - .600 maximum lift - 6,300 to 6,500 Max RPM
Retainers	7° Manley Chrome Moly - 1.245 OD x .885 ID x .655 ID
Keepers	7° Bead Lock
Rocker Studs	3/8 ARP
Guide Plates	5/16 Adjustable
Valve Seals	Viton - .675 OD x .513 ID
Spring Seat Cups	1.380 OD x .570 ID - Hardened
Intake Valve Seat	Ductile Iron - 2.131 OD x 1.680 ID x .375 Deep
Exhaust Valve Seat	Ductile Iron - 1.650 OD x 1.325 ID x .375 Deep
Valve Guides	8 mm Bronze
Thermactor Air Injector Reducer Bushing

Recommended Components

Intake Gasket	AFR 6911
Note	Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes.
Exhaust Gasket	AFR 6915
Head Gasket	Fel-Pro 1011-1
Head Bolts	ARP 154-3703 (1/2")
Head Studs	ARP 254-4503 (1/2")
1/2 Bolt with 7/16 Thread	ARP 254-3708 (1/2")
Head Bolt Washers	Manley
Stud Girdle
Intake Manifold
Spark Plug Starting Range	Autolite 3924

Specifications and Features

Material	A356 Aluminum
Intake Port Volume	185cc
Intake Port Dimension	2.010 Height x 1.070 Width - 5/16 Radius
Intake Port Location	Stock
Exhaust Port Volume	64cc
Exhaust Port Dimension	1.370 Height x 1.350 Width
Exhaust Port Location	Stock
Combustion Chamber Volume	59cc
Valve Cover Bolt Pattern	Perimeter Bolt
Valve Angle	20°
Valve Spring Pocket Diameter	1.540 OD
Max Valve Spring Pocket Machining	1.600 OD
Deck Thickness	.325
Minimum Bore Diameter	4.000
Flat Mill	.006 per cc 54cc Maximum
Angle Mill
Note	Angle milling may require .120 thick intake gasket
Minimum Cross Sectional Area
Spark Plug Dimensions	14mm x .750 w/Gasket Seat
CARB EO Number
Head Bolt Diameter	1/2"

Flow Chart

Flow Data: cfm @ 28 inches of Water

Lift	.200	.300	.400	.500	.550	.600
Intake	119	177	225	255	257	260
Exhaust	105	143	163	166	168	170

Browse for more products in the same category as this item:

Cylinder Heads > Air Flow Research Cylinder Heads > Ford - Small Block > Small Block Ford - Enforcer Series