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Vehicle Info NeededJEGSPART NUMBER: 555-51606
Chevy LT1 Harmonic Balancer/Damper 10% Underdrive Pulley without Hub
$23199$255.99You Save$24.00
Ships on 11/04/2026
Lowest Price GuaranteeLT1 Harmonic Balancers/Dampers
- Chevy LT1 Harmonic Balancer/Damper
- 10% Underdrive Pulley without Hub
- 6.75" Diameter
- Integral damper/pulley 6-rib design
- See 'Details/More Info' for available Hub's
LT1 hub required when using our LT1 balancer P/N 555-51605/51606: - 555-51607 (1993-95 Camaro/Firebird | 1992-95 Corvette)
- 555-51608 (1993-97 Caprice/Impala SS/Buick Roadmaster)
- 555-51609 (1996-97 Camaro/Firebird | 1996 Corvette)
- Hub does not include bolt or woodruff key
If you turn 12,500 RPM (on purpose or not), our high-performance balancers/dampers can handle it.
We start with a chunk of 1045 steel, meticulously CNC machine it and fully balance it into harmonic art that meets SFI 18.1 specifications. That's good enough for pretty much every type of racing that there is. Permanently etched timing marks every 2-degrees with additional marks at 90° increments.
Part TypeHarmonic Balancer
Product LineJEGS SFI LT1/LS Harmonic Balancers/Dampers
BrandJEGS
Package Height4.0
Package Width8.6
Package Length9.1
Weight6.95 PG
Part CategoryPerformance Parts
Degree MarkingsYes
Harmonic Balancer ConstructionSteel
Bolt Hole Count3
Pulley DiameterN/A
Engine BalanceInternal
Overall Width1.33 in (33.8 mm)
Degree Marking Range50 BTDC to 10 ATDC
Harmonic Balancer MaterialSteel
Crank Trigger/Exciter PlateNo
Crank Bore1.63 in (41.402 mm)
Part FitmentSemi Universal
Ring Width (In)1.33
Outside Diameter6.75 in (171.5 mm)
Safety RatingSFI 18.1
FinishBlack Painted
Package Qty1
Package TypeEA
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