Proflow Cylinder Heads & Rocker kit, SuperMax 205, Assembled Aluminium, SB Ford 289-351W, 58cc Chamber, 205cc Intake, With Aluminium Rockers 1.6, Kit - PFEAHF20560-RRK4
Part Number: PFEAHF20560-RRK4
Proflow Cylinder Heads Kit, SuperMax 205, SB Ford 289, 302, 351W, with Aluminium Roller Rockers
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.
Proflow's Pro Series 2024 rocker arms are designed for use in street/strip and track applications. This series of 2024 extruded billet aluminum, CNC-machined rockers are precision-finished with friction-reducing ground needle and cage bearings for superior performance and quiet operation. They're available for a wide array of engine applications, These Pro Series rocker arms are precision-engineered to withstand rigorous racing conditions. Order the set designed to fit your engine application.
- Proflow Large Body Rockers increase engine power, enhance valve train stability & improve oiling
- New extrusion based on improvements developed through FEA analysis, resulting in an even stronger, stiffer body without compromising mass
- Contoured top give the rockers the best strength to weight ratio possible
- Spiral lock type clips replace retaining Circlips
SPECIFICATIONS |
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| Material | A356.2 Aluminium |
| 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 |
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| 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 these heads. |
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| 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 | |