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This is a crank pulley to fit a Fluidampr 620131 with LS4 style accessories that are commonly used on mid and rear engine LS swaps.
The front of the pulley sits approximately 0.5" further forward than the LS4 pulley with required spacer.
Overall diameter is approximately 7.125" vs 8" for the LS4 pulley.
This pulley is about 3.5% underdrive from the LS4.
Hard anodized in black.
Fits all LS and LS based engine, excluding LS4.
DOES NOT include the Fluidampr harmonic damper.
