Proflow Cylinder Heads, SuperMax 360 CNC, Aluminium, Assembled 120cc Chamber, Straight Plug, 360cc Intake Runner, BB Chevrolet, Pair - PFEAHBB360121-CNC
Proflow Cylinder Heads, SuperMax 360 CNC, Aluminium, Assembled 120cc Chamber, Straight Plug, 360cc Intake Runner, BB Chevrolet, Pair - PFEAHBB360121-CNC is not in stock at Fast Lane Spares and will ship direct from supplier
Proflow Cylinder Heads, SuperMax 360 CNC, Aluminium, Assembled 120c...
Description
Description
Part Number: PFEAHBB360121-CNC
Proflow Cylinder Heads, SuperMax 360 CNC, Aluminium, BB Chevrolet, Assembled 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. They have 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. This BBC cylinder head is recommended for agressive street or street/strip applications with displacements up to 540 cubic inches, operating at or below 6800 RPM. 1.625 O.D. Solid Roller, 275lbs on seat,.850 Maximum Lift.
SPECIFICATIONS
Material
A356.2 Aluminum
Intake Port Volume
360cc
Intake seat size
2.3
Exhaust seat size
1.88
Intake Port Dimension
2.515"H x 1.780"W x 11/32 Radius
Intake Port Location
Stock
Exhaust Port Volume
135cc
Exhaust Port Dimension
1.780"H x 2.025" W
Exhaust Port Location
.375" Raised
Combustion Chamber Size
121cc
Valve Cover Bolt Pattern
Perimeter Bolt
Valve Angle
24°/4° Int, 15°/4° Exh
Valve Spring Pocket Diameter
1.725" O.D
Max Valve Spring Pocket Machining
1.750" O.D
Deck Thickness
.750"
Minimum Bore Diameter
4.250"
Flat Mill
.006" per cc/ Maximum 114cc
Angle Mill
.009" per cc/Maximum 104cc
Note
Angle mills might require a.120" Thick intake gasket.
Minimum Cross Sectional Area
3.435 sq. in.
Spark Plug Dimensions
14mm x.750" w/Gasket Seat
Intake Valve Seat Machine Style:
5-angle
FEATURES
11/32" Intake Valve, 2.300" x5.500" O.A.L
11/32" Tulip Exhaust Valve, 1.880" x 5.450" O.A.L
Racing Spring #1224 1.625 O.D. Solid Roller, 275lbs on seat,.850 Maximum Lift, Max RPM 7400-7600
10° Titanium Retainers 1.490" O.D x 1.180" I.D x.765" I.D
10° 11/32" Valve Locks with lashcap recess
ARP 7/16" Rocker Exhaust Studs
ARP 7/16" Rocker Intake Studs
3/8" Guide Plates
11/32" Viton Valve Seals
Hardened Spring Cup 1.740" O.D / 1.650" I.D
Intake Valve Seats 2.450" O.D x 2.000" I.D x.375" Deep
Exhaust Valve Seats 2.000" O.D x 1.580" I.D x.375" Deep
11/32" Intake Bronze Valve Guides.502" O.D x 2.10" O.A.L
11/32" Exhaust Bronze Valve Guides.502" O.D x 2.25" O.A.L
RECOMMENDED COMPONENTS
Intake Port Gasket
(.120" Thick)
Intake Port Gasket
(.060" Thick)
Important
Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit the heads.
Exhaust Port Gasket
Head Gasket
Fel-Pro #1047 (Mark V and VI)
Head Gasket
Fel-Pro #1017-1 (Mark IV)
Head Bolts
ARP 135-3703 (Mark IV)
Head Bolts
ARP 135-3707 (Mark V)
Head Studs
ARP 235-4713
Head Bolt Washers
Manley
Stud Girdle
7/16 Stud Mount Rocker Arms - 1.7 Ratio (For Optimized Geometry)
1.7 Shaft Mount Rocker Arms T&D
Suggested Manifold
Victor Jr
Suggested Manifold
Super Victor
Spark Plug Starting Range
Pump Gas 3924 / Race Gas 3922
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