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Professional Products

Professional Products GM LS1/LS6 Harmonic Damper - SFI

MPN: 90033 Catalog #: 001863735 Category: Harmonic Balancers And Components Check Vehicle Fitment

Product Details

Harmonic Balancer - PowerForce Plus - 7.500 in OD - SFI 18.1 - Steel - Black - Internal Balance - GM LS-Series - Each

Notes: The Corvette models of the LS1 damper are shorter than the 80032/90032 so may be more desirable for engine swaps where space is at a premium. If this swap is made, Corvette accessory mounting brackets will also need to be used to assure proper accessory drive belt alignment.

This damper includes dual keyways and a centering boss to permit the use of a supercharger pulley. This damper is shorter than any of our other LS dampers and aligns with all LS3 accessories such as water pump, alternator and A/C.

Features

  • Chevy Corvette LS1-LS2-LS3-LS6
  • 7.5'' Diameter
  • 1045 Steel
  • #18-1 SFI Rated
  • Engine Balance - Internal
  • Degree Markings - No
  • Outside Diameter (in.): 7.50

Vehicle Fitment

Please verify year, make, model, and any notes before ordering.

Engine Compatibility

GM - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Professional Products
Part Number
90033
Catalog Number
001863735
Product Line
Harmonic Balancers and Components
Category
Engines & Parts
Type
Harmonic Balancers And Components
UPC / Barcode
665053900334
Length
10.30 in
Width
9.40 in
Height
4.00 in
Weight
11.79 lb
Ship Alone
No
Air Restricted
No

Shipping & Availability

Current status 1 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 1 available as of 6/4/2026.

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