Complete Small Block Ford Windsor 289 302 351 175cc Alloy Cyl Heads
SKU: AF95-2302
Reliable shipping
Flexible returns
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
Material: A356 Aluminium
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"
The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilize ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamber designs produce excellent flow numbers. 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 budget 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 bolt bushing kit or step down head bolts.
IMPORTANT NOTICE:
We recommend to check installed spring seat pressure & open pressure before installing your cylinder heads to make sure the spring pressure is correct for your application.