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AFR - Airflow Research 1427

SBF 185cc Competition Package 58cc chambers Stud Mount No Parts

033-1427

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Estimated ship date 12/27/17 if Ordered Today
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AFR - Airflow Research 1427 SBF 185cc Competition Package 58cc chambers Stud Mount No Parts $1,895.38
SBF 185cc Competition Package 58cc chambers Stud Mount No Parts

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!

AFR's NEW 185cc Renegade Ford cylinder head is a total redesign of their already formidable and proven 20° Ford cylinder head. This new 185cc flow drastically more, averaging a 17 CFM increase from .200-.600 lift, than the previous best 185cc heads. If you're looking for a decisive advantage for your small block Ford street/strip car, check out AFR's all new 185cc intake port emissions legal (CARB EO #250-3) performance cylinder heads. With lightweight 8mm diameter stem, 2.020'' intake valves, 1.600'' exhaust valves, volumes of 58cc, 60cc or 72cc combustion chambers, and 70cc exhaust ports, AFR's new 185cc Ford cylinder heads are designed for 302-367 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 cylinder heads p/n 033-1420 and 033-1422. High flow 2.020'' valves might require aftermarket pistons notched for valve clearance. .
Installation Note: 1986 5.0L must have pistons notched for clearance.

185cc Renegade Street Cylinder Head Features:
  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-angle Valve Job
  • 185cc Intake Ports
  • 70cc Exhaust Ports
  • Bead Lock Intake Valve, 2.020'' x 4.903'' Overall Valve Length (Stud Mount Rocker Arms)
  • Bead Lock Exhaust Valve, 1.600'' x 4.955'' Overall Valve Length (Stud Mount Rocker Arms)
  • Bead Lock Intake Valve, 2.020'' x 5.079'' Overall Valve Length (Pedestal Mount Rocker Arms)
  • Bead Lock Exhaust Valve, 1.600'' x 5.100'' Overall Valve Length (Pedestal Mount Rocker Arms)
  • PAC Racing Valve Spring: 1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs on seat, .600'' maximum lift
  • 7° Manley Chrome Moly Retainers
  • 7° Bead Lock Valve Keepers
  • Adjustable 5/16'' Guide Plates
  • Viton Valve Seals
  • Hardened Spring Cup
  • Intake Valve Seats
  • Exhaust Valve Seats
  • Bronze Valve Guides
  • Thermactor Air Injector on Emissions Legal Heads Only
  • Standard 2'' Spacing Exhaust Bolt Pattern, Accepts Factory and Aftermarket Headers
  • Use 14mm x 3/4'' reach gasketed (NOT tapered) seat plugs




    Click image to enlarge
    Emission legal cylinder head features 5/8''-11 through hole used for connecting emissions equipment (firewall side). Requires supplied thermactor reducer (x2) to mount alternator/accessory brackets. Confirm orientation of plug prior to installing cylinder head.

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