AFR Cylinder Head Aluminum 185cc Intake 3/8" Stud 58cc Chambers With EGR Pair 289/302/351W

Air Flow Research:

Pair of AFR 185CC Cylinder Heads with 58CC Combustion Chambers for 289, 302 and 351W with EGR.

If you need the world's finest street/strip small block Ford head, check out AFR's 185cc intake port emissions legal (CARB EO #250-3) performance cylinder heads. With lightweight 8mm 2.020 intake valves, 1.600 exhaust valves, combustion chamber volume of 58cc, and 70cc exhaust ports, AFR's 185cc Ford cylinder heads are designed for 302 and 351W 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. Available with optional nitrous or blower exhaust port featuring 70cc ultra high flowing exhaust ports.

Cylinder Head Specifications:
Intake Port Size: 185cc
Exhaust Port Size: 70cc
Combustion Chamber Size: 58cc
Intake Valve Size: 2.020"
Exhaust Valve Size: 1.600"
Stud Mount Rockers: 3/8"
EGR: Yes

*Will not accept rail rocker arms.
*Hardened pushrods required.
*High flow 2.020 valves might require aftermarket pistons notched for valve clearance.
*1986 5.0L must have pistons notched for clearance.

As you work to upgrade your 289, 302 or 351W Engine to get the best performance possible, cylinder heads are likely on your shopping list. Air Flow Research has more than 30 years of cylinder head development experience and is going to have the perfect cylinder heads for your performance 289, 302 and 351W.

Order a new Pair of AFR 185CC Cylinder Heads with 58CC Combustion Chambers for your 289, 302 or 351W with EGR from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:

  • 1965 and older U.S. manufactured California certified vehicles
  • 1967 and older U.S. manufactured federally certified vehicles

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following F-100 years:

  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,

This product will fit the following Mustang years:

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