Small Block Chevy Motown 220 Cast Iron Cylinder Head 220cc Intake Ports

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220cc Intake Ports
64cc Combustion Chambers
2.080'' Int/1.600'' Exh Valves
1.437'' Valve Springs, .600'' Max Lift for Solid/Hydraulic Roller
Straight Plug
Assembled, Sold Individually

1.437' dual spring, 125# @ seat, .600' max. lift, 2.08' x 1.600' valves, 220cc intake runner.
Material: High density cast iron
Valve Seats: Integral intake, hardened steel exhaust
Valve Guides: Integral cast iron
Valve Spring Seats: Machined for 1.440' springs
Valve Size: 2.08' x 1.600' - 11/32'
Rocker arm Studs: 3/8' shank, screw-in style with hex shoulder furnished with assembly
Accessory Flange: Stock locations, 7-bolt universal pattern
Included In Assembly: Erson stainless steel valves, ring & band style valve seals, 1.440' valve springs, Erson 7° chrome moly retainers, keepers and pushrod guide plates.

Recommended Installation Items:
Head Gasket: Fel-Pro #1003 or equivalent
Pushrods: Requires heat-treated pushrods, Use of 1.6 ratio rocker arms requires elongation of pushrod holes.
Spark Plugs: Accepts 14mm .460' reach tapered seat 5/8' hex(Champion #670 or #802) or equivalent
Intake Gasket: Fel-Pro #1205 or equivalent
Exhaust Gasket: Fel-Pro #1404 or equivalent

Perfect Cylinder Head for Big-Inch Small Block Chevy Engines!

Designed to provide an even greater intake charge than the Sportsman II, World's Motown 220 clearly rates as the ultimate small block cast iron head. It features the latest high tech 64cc chambers and RightCast 220cc runners to provide a combination of excellent flow and high velocity. With high-flow ports and standard intake valves, World Products Motown 220 heads are the ideal compliment to large displacement small blocks (383ci and larger).

Technical Specifications

Material: High density cast iron
Valve Seats: Integral intake, hardened steel exhaust
Valve Guides: Integral cast iron
Valve Spring Seats: Machined for 1.550'' springs
Valve Size: 2.080'' x 1.600''
Accessory Flange: Stock locations, 7-bolt universal pattern
Included In Assembly: Erson stainless steel valves, ring and band (-2 models) or PC (-3 models) style seals, 1.440'' (-2 models) or 1.550'' (-3 models) valve springs, Erson 7° (-2 models) or 10° (-3 models) chrome moly retainers, and keepers.

Recommended Installation Items
Head Gaskets: Fel-Pro 375-1003 or equivalent
Pushrods: Requires heat-treated pushrods. Use of 1.6 ratio rocker arms requires elongation of pushrod holes.
Screw-in Studs: 3/8" or 7/16" with 7/16"-14 base thread
Pushrod Guidplates: Flat 5/16" Erson 601 or equivalent
Spark Plugs: Accepts 14mm .460'' reach tapered seat 5/8'' hex (AC Delco R43TS or R44TS or equivalent)
Intake Gasket: Fel-Pro 375-1205 or equivalent
Exhaust Gasket: Fel-Pro 375-1404 or equivalent

Machine Shop Specifications
Maximum Valve Diameter: 2.125'' x 1.600'' or 2.080'' x 1.625''
Maximum Spring Seat Depth (from inside step): .030''
Maximum Spring Diameter: 1.550''
Approximate Milling Guideline (varies with depth): .0065'' per cc
Maximum Flat Mill Depth (up to intake seat): .040''
Maximum Angle Mill (approx. 50-52cc volume): .175'' depth

Note: Specs are for reference only. ALWAYS measure before machining.