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Founded by Hank Manley in 1966, Manly has been producing some of the industries finest engine components for close to 50 years! Today. Manley continues to re-define itself in a high performance aftermarket that is constantly evolving. With growing product lines and exceptional leadership, look for Manley to remain a force in the automotive world.

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Chevy Small Block V8, 0.3125" Tube O.D.

Tube O.D.: 0.3125"

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Chevy Small Block V8, 3.48" Stroke

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Stroke: 3.48"

Main Journal Style: 350 mains

Crankshaft Material: Forged 4340 Steel

Main Journal Diameter: 2.448"

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Chevy Small Block V8, Steel, Painted

Material Type: Steel

Finish: Painted

Overall Thickness: .121"

Inside Diameter: .456"

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Chevy Small Block V8, .38" Hole Diameter, Plastic

Hole Diameter: .38"

Material Type: Plastic

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 7.85"

Material Type: Chromoly

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2.3, Stainless Steel, 1.590" Valve Head Diameter

Material Type: Stainless Steel

Valve Head Diameter: 1.590"

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2.3, Stainless Steel, 1.890" Valve Head Diameter

Material Type: Stainless Steel

Valve Head Diameter: 1.890"

Valve Stem Diameter: 0.342"

Stem Length: 4.800"

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Chevy Small Block V8, 0.38" Tube O.D., Chromoly

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Tube O.D.: 0.38"

Wall Thickness: 0.135"

Overall Length: 7.95"

Material Type: Chromoly

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0.3125" Tube O.D., 7.894" Overall Length

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Tube O.D.: 0.3125"

Overall Length: 7.894"

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 8.05"

Material Type: Chromoly

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 8.00"

Material Type: Chromoly

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Chevy Small Block V8, Dual Spring Valve Spring Style

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Valve Spring Style: Dual Spring

Outside Diameter: 1.560"

Maximum Lift: .750"

Open Pressure: 660 lbs. at 1.25"

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 7.90"

Material Type: Chromoly

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$29.69
$32.99

Chevy Small Block V8, Stainless Steel, 4.926" Length

Clearance

Material Type: Stainless Steel

Valve Head Diameter: 2.080"

Valve Stem Diameter: 0.341"

Valve Head Style: Flat

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Chevy Small Block V8, 0.375" Tube O.D., Chromoly

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Tube O.D.: 0.375"

Wall Thickness: 0.135"

Overall Length: 8.1"

Material Type: Chromoly

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Chevy Small Block V8, .3125" Tube O.D.

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Tube O.D.: .3125"

Overall Length: 7.950"

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$1,199.99
$1,299.99

Many Engines, Titanium, 2.100" Valve Head Diameter

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On Sale

Material Type: Titanium

Valve Head Diameter: 2.100"

Valve Stem Diameter: 0.311"

Length: 5.140"

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396, 402, 427, 454, 496, 502, 0.3125" Tube O.D.

Tube O.D.: 0.3125"

Overall Length: 8.280"

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 7.80"

Material Type: Chromoly

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Chevy Small Block V8, .31" Tube O.D., Chromoly

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Tube O.D.: .31"

Wall Thickness: .12"

Overall Length: 7.75"

Material Type: Chromoly

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$107.99
$119.99

Chevy Small Block V8, 0.375" Tube O.D., Chromoly

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Clearance

Tube O.D.: 0.375"

Wall Thickness: 0.135"

Overall Length: 7"

Material Type: Chromoly

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Chevy Small Block V8, 0.375" Tube O.D., Chromoly

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Tube O.D.: 0.375"

Wall Thickness: 0.135"

Overall Length: 8.2"

Material Type: Chromoly

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$62.99
$74.99

0.5" Inside Diameter, 1.5" Outside Diameter

Clearance

Inside Diameter: 0.5"

Outside Diameter: 1.5"

Weight: 0.7 lbs.

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Chevy Small Block V8, Stainless Steel, 5.026" Length

Material Type: Stainless Steel

Valve Head Diameter: 2.080"

Valve Stem Diameter: 0.341"

Length: 5.026"

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