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Manley Performance Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
Manley Performance Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
Manley Performance Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
Manley Performance Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
Manley Performance Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
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Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft

MAN194458
807298096896
Crankshafts
Out of stock
$ 1,384.63 $ 1,273.86

SKU: 194458 | UPC: 807298096896

Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft 1992-1997

This Manley Pro Series crankshaft delivers a 4.000-inch stroke in a lightweight design with long snout tailored for Chevrolet LT1 engines. It suits high-revving 383 stroker builds in 1992-1997 Camaro Z28 Corvette Firebird and Impala SS models. Forged 4340 steel construction handles extreme power levels with reliable strength.

Key Features

  • Forged 4340 Alloy Steel: Delivers high tensile strength and resistance to fatigue for demanding race applications
  • Nitrided Micro-Polished Finish: Increases surface hardness protects against wear and ensures smooth journal operation
  • Lightweight Design: Cuts rotational mass by up to 8 lbs versus stock for faster engine acceleration and response
  • Long Snout Configuration: Matches LT1 Optispark distributor and reverse rotation timing covers on Corvette applications
  • Precision Journals: 2.559in mains 2.100in rods with gun-drilled passages for optimized oil flow and two-piece rear main seal

Product Notes

  • Designed for performance and racing use in LT1 blocks verify block clearance before installation
  • Pre-balanced for internal LT1 setup final balancing needed with rods and pistons
  • Packed in protective crate to prevent shipping damage

Installation Notes

  • Professional installation recommended.
  • Balance complete rotating assembly including pistons rods and flexplate
  • Uses stock LT1 bearings or performance aftermarket equivalents

This Part Fits

Year Make Model Submodel
1992-1996 Chevrolet Corvette Base LT1
1993-1997 Chevrolet Camaro Z28 LT1 SS
1993-1997 Pontiac Firebird Formula Trans Am
1994-1996 Chevrolet Impala SS
1994-1996 Chevrolet Caprice LT1

Why Choose Manley?

  • Over 40 years crafting championship-winning engine parts
  • USA-made with stringent quality controls for every component
  • Proven in NHRA Pro Stock and sportsman drag racing

Frequently Asked Questions

  • Q: What LT1 engines is this crankshaft designed for?
    A: Fits 1992-1997 Chevrolet LT1 small blocks including reverse rotation Corvette setups for 383 stroker conversions
  • Q: What material and treatments are used?
    A: Forged 4340 aircraft-grade steel multi-stage heat treated with nitrided and micro-polished journals for durability
  • Q: Is balancing included and what is required?
    A: Pre-balanced internally for LT1 must be custom balanced with specific rods pistons and harmonic balancer

Shipping & Handling

  • Method: Ground Shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Protective crate 28in L x 16in W x 8in H
  • Weight: 58 lbs

Request For Information

Have questions about Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft? Fill out the form below and we'll get back to you by the next business day.
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