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
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