4340 Non-Twist Forging
Features:Internal balance, 2-piece rear seal applications
Lightweight design
Available With or Without center counterweights
2.200'' Rod Journal diameter
Gun drilled rod journals
Manufactured from 4340 non-twist forgings
Heat treated, stress relieved, shot peened and 100% magnafluxed
Micro polished large radius journals
Narrowed rod bearings required
Manley builds one of the best crankshafts available for our high performance world! Many engine building superstars rely on Manley forgings to throw down the horsepower numbers we demand, pass after pass. Manley starts with a 4340 steel non-twist forging that undergoes an extensive heat treating and stress relieving process. After that, it is shot peened, nitrided and 100% magnafluxed to ensure complete structural integrity was maintained throughout the forging process for durability and longevity.
Features:
Note: Manley crankshafts are not intended for use with highly boosted Roots-style cog belt driven superchargers.
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454ci Main Journal DiameterWithout Center Counterweights
$964.99
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BB-Chevy Crankshaft Without Center Counterweights2-Piece Rear Seal Internal Balance 4.000'' Stroke 6.385'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2350 Grams Bobweight 64-66 Lbs.
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BB-Chevy Crankshaft Without Center Counterweights2-Piece Rear Seal Internal Balance 4.250'' Stroke 6.385'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2350 Grams Bobweight 64-66 Lbs.
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$964.99
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BB-Chevy Crankshaft Without Center Counterweights2-Piece Rear Seal Internal Balance 4.375'' Stroke 6.535'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2350 Grams Bobweight 64-66 Lbs.
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$964.99
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454ci Main Journal DiameterWith Center Counterweights
$1,025.99
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BB-Chevy Crankshaft With Center Counterweights2-Piece Rear Seal Internal Balance 4.250'' Stroke 6.385'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2350 Grams Bobweight 74-76 Lbs.
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BB-Chevy Crankshaft With Center Counterweights2-Piece Rear Seal Internal Balance 4.375'' Stroke 6.535'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2350 Grams Bobweight 74-76 Lbs.
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$1,025.99
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BB-Chevy Crankshaft With Center Counterweights2-Piece Rear Seal Internal Balance 4.500'' Stroke 6.700'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2425 Grams Bobweight 74-76 Lbs.
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$893.99
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BB-Chevy Crankshaft With Center Counterweights2-Piece Rear Seal Internal Balance 4.750'' Stroke 6.700'' Minimum Rod Length 2.750'' Main Journals 2.200'' Rod Journals 2425 Grams Bobweight 74-76 Lbs.
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$893.99
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