Steel Flywheels by McLeod Mcleod Aluminum Flywheels Are Ideal For Numerous Applications Such As Supercharged Or Turbocharged Engines. These Flywheels Are Ideal For Higher Horsepower Engines And Combinations That Achieve Rapid Rpm Levels. Mcleod Aluminum Flywheels Are Cnc Machined From 6061 T6 Aluminum And Come With A Replaceable Steel Friction Plate And 1045 Steel Hardened Ring Gear. Features Make: Chevrolet Ring Gear: 168 tooth Flywheel Material: Steel Weight: 30 Lbs Clutch Pattern 1: 11\” & 12\” B&B & Diaphragm Shouldered Bolt Clutch Pattern 2: 12\” LS1/LS6 Diaphragm, Metric Bolts, With Dowel Pins Disc Diameter: 11\”/12\” Engine: LS-X 376, LS-X 454 Crate Engine 8 Bolt Crank Engine Balance: Internal Balance Benefits Are Cnc Machined From 6061 T6 Aluminum And Come With A Replaceable Steel Friction Plate And 1045 Steel Hardened Ring Gear. These Flywheels Are Ideal For Higher Horsepower Engines And Combinations That Achieve Rapid Rpm Levels Applications 1997 2004 Chevrolet Corvette C5 1998 2002 Chevrolet Camaro Z28 1998 2002 Chevrolet Camaro SS 2004 Pontiac GTO 2001 2004 HSV GTO 1999 2005 Holden Statesman 2001 2005 Holden Monaro 2001 2004 Chevrolet Corvette C5 Z06 2004 2005 Cadillac CTS V-Serie 2007 SSC Ultimate Aero TT What\’s In The Box? 1 – Steel Flywheels Warranty Manufacturers Standard Warranty