The Sikky adapter kit will work with the following engines

• 4.8L – LR4 (Gen 3) LY2, L20 (Gen 4) Silverado, Express Van, Escalade, Tahoe, Trailblazer
• 5.3L w/ short cranks – LM7, L59, LM4, L33 (Gen 3) LH6, LY5, LMG, LC9, LH8 (Gen 4) Silverado, Express Van, Escalade, Tahoe, Trailblazer
  
• 5.7L – LS1, LS6 (Gen 3) C5 Corvette, F-Body Camaro/Trans Am, GTO
  
• 6.0L w/ short cranks – LQ4, LQ9 (Gen 3) LS2, L76, L98, L77, LY6, LFA, LZ1 (Gen 4) Silverado, Escalade, C6 Corvette, GTO, G8
  
• 6.2L – L92, LS3, L99, LS9, LSA (Gen 4) Camaro, Corvette, Escalade, CTS-V, G8 GXP,
  
• 7.0L – LS7, LSX (Gen 4) Corvette Z06, Chevy Performance

Fitment Notes:

In 2001, GM changed their crankshaft design. Early build (1999 and 2000) 5.3L and 6.0L engines have a longer crank that extends approximately 0.50″ from the rear main seal. Engine’s with this longer crank will NOT work with our kit. 

Car engines from all years as well as 2001 + truck engines have the normal short crank engine that works with the Sikky kit.  This crank will extend approximately 0.125″ from the rear main seal.

The Sikky flywheel is designed to work with 6 bolt cranks only.