Aeroflow Complete Small Block Ford Windsor 289-351 175cc Aluminium Cylinder Heads with 61

AF95-2302 - SBF 173cc ALUMINIUM HEADS ASSE

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Aeroflow PerformanceSKU: AF95-2302

Product: 2.00" x 1.18" Intake Port, 1.32" x 1.27" Exhaust Port

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$2,106.31 NZD $2,217.17 NZD

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Complete Small Block Ford Windsor 289-351 175cc Aluminium Cylinder Heads with 61cc Chamber (Pair)2.00" x 1.18" Intake Port, 1.32" x 1.27" Exhaust Port
Brand: AEROFLOW
Part Number: AF95-2302
Description:

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Theseheads utilise ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamberdesigns produce excellent flownumbers. This combined with a 5-angle competition valve job,diamond-honed bronze guides, hand bowl blending and professional assembly help to outperform some of the best brands in the business.

The Aeroflow Performance small block Ford Windsor cylinder heads are designed for street performance engines to give the ultimate in flow at a mbudget price. Made from A356 aluminium castings, the 175cc cylinder heads are ideal for operating in the idle to 6500 rpm range. The complete heads include larger then stock 1.46" diameter valve spring to handle .525" lift. Suits flat tappet camshaft.

Note: These heads are drilled for 1/2" head bolts. If using a 7/16" bolt, you must use a head boltbushing kit or step down head bolts.

Additional Specifications:

Head Specifications

Material: A356 Aluminium
Chamber Chamber: 61cc
Intake Port Volume: 175cc
Intake Port Dimension: 2.00" x 1.18"
Exhaust Port Volume: 66cc
Exhaust Port Dimension: 1.32" H x 1.27" W
Spark Plug Location: Angled
Intake Valve Diameter: 2.02"
Exhaust Valve Diameter: 1.60"
Valve Stem Diameter: 11/32"
Valve Spring Pocket I.D.: 1.49"
Valve Guide Material: Manganese Bronze
Valve Guide O.D.: .530" (.570" at base)
Rocker Stud Thread Size: 7/16" x 14
Valve Angle: 20°
Deck Thickness: .625"

Valve Spring Specifications

Installed Height: 1.800"
Installed Pressure: 125lbs
Open Pressure: 300lbs @ 500"
Maximum Lift: .600" @ 1.200"
Coil Bind: 1.110"
Spring Outside Diameter: 1.440"
Spring Inside Diameter: 1.130"
Spring Free Length: 2.200"
Valve Spring Retainer Outside Diameter: 1.400"
Valve Spring Inside Diameter: 0.395"
Valve Spring Retainer Step 1: 1.060"
Valve Spring Retainer Step 2: 0.685"
Valve Spring Locator Outside Diameter: 1.550"
Valve Spring Locator Inside Diameter: 0.565"
Important Information:

IMPORTANT NOTICE:

We recommend to check installed spring seat pressure & open pressure before installing your cylinder headsto make sure the spring pressure is correct for your application.

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Aeroflow Complete Small Block Ford Windsor 289-351 175cc Aluminium Cylinder Heads with 61

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