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12

NZD $1,409.40 12 items

12

NZD $1,409.40 12 items

Proflow Cylinder Heads, SuperMax 335, Aluminium, BB Chevrolet, Assembled, 120cc Chamber, 335cc Intake Runner, Pair

NZD $2,730.00

SKU: PFEAHBB335121 Categories: Chevrolet Big-Block, Components, Custom Car Shop, Cylinder Heads, Engines & Components Tag: vpw

4 in stock

Proflow Cylinder Heads, SuperMax 335, Aluminium, BB Chevrolet, Assembled

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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. 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.

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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.

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Material	A356 Aluminum
Intake Port Volume	335cc
Intake Port Dimension	2.450″H x 1.755″W x 13/32 Radius
Intake Port Location	Stock
Exhaust Port Volume	135cc
Exhaust Port Dimension	1.780″H x 2.025″ W
Intake Valve Diameter (in):	2.30 in.
Exhaust Valve Diameter (in):	1.880 in.
Combustion Chamber Size	121cc
Valve Springs Pocket I.D.	1.735″
Maximum Valve Lift (in):	0.750 in.
Outside Diameter of Outer Spring (in):	1.625 in.
Lock Style:	10 degree
Rocker Arm Nut Thread Size:	7/16-20 in.
Valve Cover Mounting Style:	Perimeter bolt
Intake Valve Angle:	24/4
Exhaust Valve Angle:	15/4
Valve Guide Material:	Manganese Bronze
Intake Valve Seat Machine Style:	5-angle
Valve Seat Material:	Mental powder
Oiling Style:	Through pushrod

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, 7/16″-14 x 7/16″-14 ARP 235-7202	ARP 135-3703 (Mark IV), ARP 135-3707 (Mark V),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,Super Victor
Spark Plug Starting Range	Pump Gas 3924 / Race Gas 3922

11/32″ Intake Valve, 2.250″ 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
10Â° Retainers 1.490″ O.D x 1.180″ I.D x .765″ I.D
10Â° 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
11/32″ Intake Manganese Bronze Valve Guides .502″ O.D x 2.10″ O.A.L
11/32″ Exhaust Maganese Bronze Valve Guides .502″ O.D x 2.25″ O.A.L

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Proflow Cylinder Heads, SuperMax 335, Aluminium, BB Chevrolet, Assembled, 120cc Chamber, 335cc Intake Runner, Pair

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