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AFR 185 cc Aluminum Cylinder Heads for Small Block Ford
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If you need the world’s finest street/strip small block Ford head,
check out AFR’s all new 185cc intake port emissions legal (CARB EO #250-3)
cylinder heads. With 2.020 intake valves, 1.600” exhaust valves, combustion
chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 185cc
Ford head is designed for 302-351 cid engines operating from 1500 rpm to
6500 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or
blower applications. Will not accept rail rocker arms. Hardened pushrods
required with heads #1420 and #1422. High flow 2.020 valves might require
aftermarket pistons notched for valve clearance. Note: 1986 5.0L must have
pistons notched for clearance.
The Non-Emission Legal heads come ready for the maximum street/strip Small Block Ford performance possible.
They are not emissions legal. With the 165 coming with 1.900 intake and
1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust
valves. Both heads feature 58cc or 61cc combustion chamber with 69cc
exhaust ports. Both the 165cc and 185cc have available as an option
nitrous or blower exhaust ports featuring either a 75cc ultra high flowing
exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem
handling that additional cylinder pressure. Each head is also drilled for
the larger 1/2” head bolt hole for maximum head gasket retention as a
standard feature of this serious race piece in street disguise.
Note:
Hydraulic roller cams typically experience valve float at 5800-6000 rpm
because of their fast ramp rates. AFR suggests you upgrade your springs
to AFR part #8032, 1.530 O.D. with higher spring pressures to reduce
chances of valve float associated with rpm’s 6000 or higher.
FREE Shipping on ALL AFR Heads!!!
All Ford AFR Heads not "In Stock" are made to order (3-4 WEEK BUILD TIME) and are ordered after payment is received.
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| Kit Description |
Part Number |
Price |
Buy |
| 185cc Street Heads, Stud, 58cc |
1422 |
$1412 |
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| 185cc Street Heads, Pedestal, 60cc |
1492 |
$1412 |
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| 185cc Street Heads, Stud, 61cc |
1420 |
$1412 |
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| 185cc Street/Strip Heads, Stud, 58cc (NON-Emissions) |
1388 |
$1412 |
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| 185cc Street/Strip Heads, Stud, 61cc (NON-Emissions) |
1387 |
$1412 |
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| 185cc Stud Rockers, 58cc Combustion Chamber (Nitrous Exhaust Port, NON-Emissions) |
1389 |
$1689 |
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| 170cc Street Heads, Stud, 55cc (BARE Heads, No Porting, No Parts) |
142 |
$775 |
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| 170cc Street Heads, Pedestal, 55cc (BARE Heads, No Porting, No Parts) |
149 |
$775 |
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| Spring Upgrade Kit, .600 lift, with REV valves |
8032 |
$175 |
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Intake Port:
Flow Chart:
Combustion Chamber:
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Exhaust Port:
Basic Package Components:
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 3-angle Valve Job
Intake Valve, 2.020” stud mount, AFR #7204
Exhaust Valve, 1.600” stud mount 58cc, AFR #7219
Exhaust Valve, 1.600” stud mount 61cc, AFR #7220
1.450” OD Hydraulic Dual Valve Spring with dampner, 120 lbs. on seat,
.550” maximum lift (upgrades available), AFR #8020
10º Chrome Moly Retainers, AFR #8510
10º Valve Locks, AFR #9005
3/8” Rocker Studs, AFR #6410
5/16” Guide Plates, AFR #6107
Valve Seals, AFR #6611
Hardened Shims, AFR #8043
Intake Valve Seats 185cc, AFR #9058
Exhaust Valve Seats, AFR #9069
Bronze Valve Guides, AFR #9049
Thermactor Air Injector, AFR #6226
Special orders available upon request.
All Accessory Holes are Predrilled & Tapped!
Specifications, Features, and Supporting Components:
Head Torque 100 Ft. Lbs. with 1/2” stud
Rocker Stud Torque 55-60 Ft. Lbs.
Rocker Pedestal Torque 25-30 Ft. Lbs.
Intake Port Gasket, 1.20"0 x 2.000" w/ 3/8" Radius, AFR
#6828
Intake Port Gasket, 1.280” x 2.100” with 3/8” radius
AFR #6832
Exhaust Port Gasket Fel Pro #1415, AFR #6837
Head Gasket 1962-82, Fel Pro #1011-1, AFR #6808
1983-93Fel Pro #1011-2, AFR #6809
Head Bolts & Studs Standard ARP, AFR #6318 & #6317
Head Bolt Washers Manley, AFR #6320
Head Bolt Bushings, 1/2”-7/16” Standard ARP, AFR #6324
Stud Girdle Standard
Suggested Manifold RPM Performer, Vic Jr.
Spark Plug Starting Range Autolite 3924
Combustion Chambers 58cc or 61cc
Spring Pocket can be cut to 1.625, no deeper.
Valve Spacing Standard
Rocker Arms Standard, will not accept rail rocker arms
Valve Angle Standard
Angle Mill (10cc Maximum Mill) .008” per cc
Flat Mill (4cc Maximum Mill) .006” per cc
Note: Milling head deck will affect flow numbers.
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View the rest of our catalog:
Full Catalog
Please contact us with any questions:
2587 Dos Lomas
Fallbrook, Ca 92028
(760) 586-5617
Email: sales@TREperformance.com
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