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Race Performance Balancer

Dayco PB1012SS Engine Harmonic Balancer

Brand	Dayco PB1012SS
Counterweight Balance	Neutral, no counterweight
Crank Bore	1.245
Crank Bore	31.62
Crank Trigger/Exciter Plate	No
Hardware Included	No
Installation Instructions Included	No
Nose Outside Diameter	1.766
Nose Outside Diameter	44.85
Number of Integrated Pulleys	0
Outer Ring Material	Steel
Overall Outside Diameter	6.113
Overall Outside Diameter	155.25
Overall Width	2.343
Overall Width	59.50
Ring Width	1.299
Ring Width	32.99
Timing Marks	Yes
Woodruff Key Included	No
Product line	Race Performance Balancer
Fits	Chevrolet, GMC, and Pontiac · 105 vehicles

Neutral balance. No counterweight for a precise harmonic balancer setup.

Steel outer ring. Built for durable performance under demanding conditions.

Timing marks. Makes setup and alignment easier during installation.

Cross-references Dorman 594-156R and Pioneer 872021 for the same application. See all 2.

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Dayco Race Performance Balancer PB1012SS

The Dayco Race Performance Balancer PB1012SS is an engine harmonic balancer built for Chevrolet and GMC applications that need neutral balance and timing mark visibility. It features a steel outer ring, a 3-bolt pattern, and a 6.113-inch overall outside diameter for race-oriented small-block setups.

Key Features

Neutral balance design with no counterweight
Steel outer ring for durable crankshaft damping support
3-bolt hole quantity for supported applications
Timing marks included for engine setup and verification
1.245-inch crank bore and 1.766-inch nose outside diameter
6.113-inch overall outside diameter and 2.343-inch overall width
No integrated pulleys, crank trigger plate, or woodruff key included

Product Details

Dayco PB1012SS is part of the Race Performance Balancer line, a product line focused on performance engine applications where accurate harmonic control and timing reference are important. This balancer uses a steel outer ring and neutral counterweight balance, making it a direct-fit style option for select Chevrolet Camaro, Chevrolet Nova, Chevrolet El Camino, Chevrolet Bel Air, Chevrolet Impala, Chevrolet Corvette, Chevrolet Caprice, Chevrolet Malibu, Chevrolet Blazer, Chevrolet C10 Suburban, Chevrolet C20 Suburban, Chevrolet K10 Suburban, Chevrolet K20 Suburban, GMC Jimmy, and GMC van applications listed in the fitment data. This part cross-references Dorman 594-156R and Pioneer 872021 for the same application.

Common Uses

Correcting crankshaft vibration control in performance engine builds
Replacing a worn or damaged engine harmonic balancer
Restoring timing mark reference on compatible Chevrolet and GMC engines
Supporting race-prepared small-block engine assemblies
Addressing pulley or balancer wear on older V8 applications

Installation Notes

Verify crank bore, nose diameter, bolt pattern, and overall diameter before installation. This balancer does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key. Confirm timing mark orientation and engine balance requirements during assembly, especially on 1962-1976 Chevrolet and GMC applications.

Quality Assurance

Dayco Race Performance Balancer components are built for performance engine service and dimensional consistency. Confirm all measurements against the engine and vehicle application before purchase, including the PB1012SS part number and the listed fitment for Chevrolet Camaro, Chevrolet Nova, and related Chevrolet/GMC models.

This part fits 105 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
1976	Chevrolet	Monza	4.3L	V8	N/A	Race Performance Balancer
1975	Chevrolet	Monza	4.3L	V8	N/A	Race Performance Balancer
1975	Chevrolet	Nova	4.3L	V8	N/A	Race Performance Balancer
1973	Chevrolet	Blazer	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	C10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	C20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	Camaro	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	El Camino	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	K10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	K20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	Malibu	5.0L	V8	N/A	Race Performance Balancer
1973	Chevrolet	Nova	5.0L	V8	N/A	Race Performance Balancer
1973	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1973	GMC	G35/G3500 Van	5.0L	V8	N/A	Race Performance Balancer
1973	GMC	Jimmy	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	Blazer	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	C10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	C20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	Camaro	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	El Camino	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	K10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	K20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1972	Chevrolet	Nova	5.0L	V8	N/A	Race Performance Balancer
1972	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1972	GMC	G25/G2500 Van	5.0L	V8	N/A	Race Performance Balancer
1972	GMC	G35/G3500 Van	5.0L	V8	N/A	Race Performance Balancer
1972	GMC	Jimmy	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	Blazer	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	C10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	C20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	Camaro	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	El Camino	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	K10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	K20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1971	Chevrolet	Nova	5.0L	V8	N/A	Race Performance Balancer
1971	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1971	GMC	G25/G2500 Van	5.0L	V8	N/A	Race Performance Balancer
1971	GMC	Jimmy	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	Bel Air	7.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1970	Chevrolet	Blazer	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	C10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	C20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	Camaro	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	El Camino	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	K10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	K20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1970	Chevrolet	Nova	5.0L	V8	N/A	Race Performance Balancer
1970	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1970	GMC	G25/G2500 Van	5.0L	V8	N/A	Race Performance Balancer
1970	GMC	Jimmy	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	Bel Air	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1969	Chevrolet	Blazer	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	C10 Suburban	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	C20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	Camaro	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1969	Chevrolet	Camaro	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	Caprice	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1969	Chevrolet	El Camino	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1969	Chevrolet	K20 Suburban	5.0L	V8	N/A	Race Performance Balancer
1969	Chevrolet	Nova	5.0L	V8	N/A	Race Performance Balancer
1969	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1968	Chevrolet	Bel Air	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	C10 Suburban	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	Camaro	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	Caprice	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	Corvette	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	El Camino	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1968	Chevrolet	K10 Suburban	5.4L	V8	N/A	Race Performance Balancer
1968	Chevrolet	K20 Suburban	5.4L	V8	N/A	Race Performance Balancer
1968	GMC	G15/G1500 Van	5.0L	V8	N/A	Race Performance Balancer
1967	Chevrolet	Bel Air	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Camaro	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Caprice	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Corvette	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	El Camino	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1967	Chevrolet	Malibu	5.3L	V8	N/A	Race Performance Balancer
1966	Chevrolet	Bel Air	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	Caprice	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	Corvette	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	El Camino	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1966	Chevrolet	Malibu	5.3L	V8	N/A	Race Performance Balancer
1965	Chevrolet	Bel Air	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1965	Chevrolet	Corvette	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1965	Chevrolet	El Camino	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1965	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1965	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1965	Chevrolet	Malibu	5.3L	V8	N/A	Race Performance Balancer
1964	Chevrolet	Bel Air	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1964	Chevrolet	Corvette	—	—	N/A	Race Performance Balancer
1964	Chevrolet	El Camino	5.3L	V8	N/A	Race Performance Balancer
1964	Chevrolet	Impala	5.4L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1964	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1964	Chevrolet	Malibu	5.3L	V8	N/A	Race Performance Balancer
1963	Chevrolet	Bel Air	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1963	Chevrolet	Corvette	—	—	N/A	6-inch outside diameter; Race Performance Balancer
1963	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
1962	Chevrolet	Bel Air	5.3L	V8	N/A	3 bolt w/counterweight & counter sunk pulley; Race Performance Balancer
1962	Chevrolet	Corvette	—	—	N/A	6-inch outside diameter; Race Performance Balancer
1962	Chevrolet	Impala	5.3L	V8	N/A	6-inch outside diameter; Race Performance Balancer
No rows match your filter.

Directly replaces or cross-references 2 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Dorman — 594-156RPioneer — 872021

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