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Flywheels with two different diameters are used on Chevrolet Small-Block, Big-Block, and 90° V-6 engines. Large flywheels are 14" in diameter and have 168 teeth on the starter ring gear. Small-diameter flywheels are 12.750" in diameter, with 153 teeth on the ring gear.

This difference in flywheel diameters requires two distinct starter housings. Starter noses used with large-diameter flywheels have two offset bolt holes, while starters for small flywheels have two bolt holes that are parallel to the back of the block. Most Chevy blocks are drilled for both types of starters.



High-Torque Mini Starter

  • Gear reduction starter is designed for 1958-1996 V-8 and all 90° V-6 engines
  • Compact design provides increased clearance
  • Weighs only 10.5 pounds and has a gear reduction of 3.75:1
  • Equipped with a dual bolt pattern for 12.750" (153-tooth) and 14" (168-tooth) flywheels
  • Housing can be rotated to clear exhaust systems
  • Includes starter, mounting bolts, shims, gaskets - and electrical connectors

NOTE: Not recommended for competition use.


High-Torque Mini Starter – Chrome

  • Same as starter P/N 12361146, but with a chrome housing


Lightweight Starter (remanufactured)

  • Lightweight high-performance starter was originally used on 1993-1997 Camaros and Firebirds with the LT1 engine
  • Can be used on any Small-Block or Big-Block engine with a 12.750", 153-tooth flywheel


Lightweight Starter – Big-Block and Small-Block

  • Gear reduction starter can be used on Big-Block and Small-Block engines with a 14",168-tooth flywheel



Alternator – 90-Amp, Competition Use

  • CS121 design housing
  • Serpentine belt pulley
  • Hand-assembled and dyno-tested


Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.