Proflow Cylinder Heads, SuperMax 205, SB Ford 289, 302, 351W, Bare

Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of Engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, High Performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod.

Note: We suggest using Proflow Head Bolt Stepped washers part number PFEAHF-HBW. Proflow head bolt insert washers are designed to be used on Ford Windsor cylinder heads in applications where you have 7/16" head bolts being used in 1/2" bolt holes. This stops the head bolt hole distorting on aluminium heads when using 7/16'' bolts on 289 / 302 standard Windsor blocks.

• Material: A356.2 Aluminum
• Intake Port Volume: 203cc
• Intake seat size: 2.08
• Exhaust seat size: 1.6
• Intake Port Dimension: 2.115" H x 1.300" W x 3/8 Radius
• Intake Port Location: Stock
• Exhaust Port Volume: 70cc
• Exhaust Port Dimension: 1.400" H x 1.400" W
• Exhaust Port Location: Raised .125"
• Combustion Chamber Size: 58cc
• Valve Cover Bolt Pattern: Perimeter Bolt
• Valve Angle: 20°
• Valve Spring Pocket Diameter: 1.580" O.D
• Max Valve Spring Pocket Machining: 1.625" O.D
• Deck Thickness: .750"
• Minimum Bore Diameter: 4.000"
• Flat Mill: .006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc);
• Angle Mill: .009" per cc 48cc Max (from 58cc); 62cc Max (from 72cc);
• Minimum Cross Sectional Area: 2.165 sq. in.
• Spark Plug Dimensions: 14mm x .750" w/Gasket Seat
• Head Bolt Diameter: 1/2"

Recommended Components:

• Rocker Type Mount
• 8mm Bead Lock Intake Valve, 2.080" x 5.000" Overall Valve Length
• 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
• PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400 (upgrades available)
• 10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D
• 10° Bead Lock Valve Keepers with lashcap recess
• ARP 7/16" Rocker Studs
• Adjustable 5/16" Guide Plates
• Viton Valve Seals .600" O.D x .495" I.D
• Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
• Powder Metallurgy Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep
• Powder Metallurgy Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep
• 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
• Intake Port Gasket, 1.200" X 2.000" w/ 3/8" radius, Fel-Pro #1262
• Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit MIC heads.
• Exhaust Port Gasket, Fel-Pro #1487
• Head Gasket, Fel-Pro #1011-1
• SB Ford 1/2" Bolt Head Bolt Kit, ARP #154-3603
• SB Ford 1/2" Bolt Head Stud Kit, ARP #254-4503
• 1/2" Bolt - 7/16" Thread Head Bolts, ARP 254-3708
• Head Bolt Washer Kit, Manley
• Stud Girdle
• Suggested Manifold: Super Vic or Vic Jr.
• Spark Plug Starting Range: Autolite 3922