Proflow Cylinder Heads SuperMax 225, Bare, Aluminium, Ford 302-351 Cleveland, 3V, 73cc Chamber, 225cc Intake Runner, 630HP Out of Box, Pair - PFEAHF21573-3V-BARE
Proflow Cylinder Heads SuperMax 225, Bare, Aluminium, Ford 302-351 Cleveland, 3V, 73cc Chamber, 225cc Intake Runner, 630HP Out of Box, Pair - PFEAHF21573-3V-BARE
is not in stock at Fast Lane Spares and will ship direct from supplier.
Please contact us prior to purchasing if you would like an accurate ETA.
Description
Description
Part Number: PFEAHF21573-3V-BARE
Proflow Cylinder Heads, SuperMax 225, SB Ford 302, 351C, Bare Proflow does not sacrifice quality for a low priceyou 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: Additional clearancing may be required if using hyraulic roller camshaft.
SPECIFICATIONS
Material:
356 Alloy, T6
Chamber Volume:
72cc
Complete Assembly options available in all chamber sizes
Intake Runner Volume:
231CC
Intake Port location:
raised.125 3V design
Minimum Cross Section:
2.53 square inches MCSA
Exhaust Runner Volume:
125cc - high velocity
Exhaust Port Location:
Raised.080 (near stock location)
Valve sizes:
Intake 2.10 (45 degree seat, custom 5 angles) Exhaust 1.650 (45 degree seat )
Valve Guide Angles:
Canted Valve angles Intake 10 x 4 degrees Exhaust: 9.5 x 3.0 degrees
Valve Guides:
Manganese Bronze.502 x 11/32 stems
Valve Seat Inserts:
Intake: 2.250 x 1.880 x 3/8 (Durabond 7000) Exhaust: 1.680 x 1.430 x 3/8
Spark Plugs:
relocated for efficient fast burn ¾ reach, 5/8 hex, washer seat (NGKBCP7ES)
Spring Pads:
1.570 od/.560 id
Valve Spring Height:
1.960 (with stock length valve)
Pushrods:
5/16 or 3/8 (check required length)
Rocker Arm Studs:
7/16 unc
Rocker Arm Type:
7/16 stud mounted roller rockers (1.73 ratio) or Yella Terra Planuim #6321 OR T&D shaft
Ext Water Port:
Heads have 3/4 npt tapped hole on each end which need to be plugged if not used
Head Bolts:
Accept oem length bolts or studs
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