Manley Performance 4340 Non-Twist Forgings 4.250in Stroke Crankshaft | Multiple Chevrolet Fitments (190140)

Manley Performance
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$1,042.34 $1,132.98Instant Savings of 8% ($90.64)

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Chevy Big Block V8 Forged Crankshaft by Manley Performance

Manley Pro Series crankshafts can make your short block bulletproof. They feature forged 4340 construction and undergo a multi-step heat-treatment process and are then nitrided for added strength. The crankshafts are stress-relieved, shot-peened, and magnafluxed.

Manley Pro Series crankshafts have micro-polished large .125 in. radius journals, gun-drilled mains, and lightened rod journals for weight reduction. The counterweights are fully profiled and they are designed for internal balancing.

Features

  • Engine Stroke: 4.250"
  • Crankshaft Weight: 64 lbs
  • Main Journal Diameter: 2.750"
  • Minimum Rod Length: 6.385"
  • Rear Main Seal: 2-Pieces
  • Rod Journal Diameter: 2.200"
  • Heat treated, stress relieved, shot peened, nitrided and 100% magnafluxed
  • Micro polished large radius journals (narrowed rod bearings required)

Benefits

  • Designed to be perfectly balanced

Please Note: The image provided is generic and may not be an accurate representation of the product you will receive

Applications

  • 1970 – 1976 Chevrolet Caprice
  • 1970 – 1975 Chevrolet Chevelle
  • 1970 – 1975 Chevrolet Monte Carlo
  • 1970 – 1975 Chevrolet El Camino
  • 1971 – 1972 GMC Sprint
  • 1970 – 1974 Chevrolet Corvette

What's In The Box?

  • 1 - Crankshaft

Warranty

  • Manley products, due to their intended use, are sold without warranty.

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