16-24+ Camaro LT1 Pro Series 4340 Forged Crankshaft 4.000" Stoke, Manley

Manley Performance PRO SERIES crankshafts designed for the Small Block direct injected LT1 engine Manufactured from a premium 4340 steel forging, these cranks feature a stock 3.622 stroke or an increased 4.000 stroke which can turn your 6.2L into 6.8-7.0L depending on your bore. All crankshafts are shipped with a 58 tooth reluctor wheel installed.

The stock timing crank gear may need to be chamfered to clear the larger radius on the snout of the crankshaft.

• 4340 material forgings
• Multi-step heat treatment process and nitrided for added strength
• Stress relieved, shot-peened and 100% magnafluxed
• Micro polished large radius journals (narrowed rod bearings required)
• Gun drilled mains and lightened rod journals for weight reduction
• Counterweights fully profiled
• Long Snout Design for Dry Sump Oiling System

• The stock timing crank gear may need to be chamfered to clear the larger radius on the snout of the crankshaft.
• Manley crankshafts are not intended for use with highly boosted roots style cog belt superchargers.

In March 1966, Manley Speed Equipment, Inc. was founded by Hank Manley shortly after his graduation from Brown University. His interest in performance and racing traced back to 1960 when at age seventeen he rebuilt a 312 CID Ford V-8 engine, installed a camshaft and three two-barrel carburetors, and raced a 1956 Thunderbird on the streets of New Jersey. Initially the line included stainless valves, forged pistons, camshafts, lifters, vanadium valve springs, push rods and timing chain kits. The first catalog was mimeographed paper. The address of the company, prophetically, was 13 Race Street in Bloomfield, New Jersey. A name changes to Manley Performance Products, Inc soon followed. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. We've developed new products for growing markets such as sport compact, Ford modular and Chevy LS; as well as maintained our leadership role with the traditional V-8 engine business.