Professional Products Small Block Ford Harmonic Balancers

#91015365

Professional Products Small Block Ford Harmonic Balancers

Name: Professional Products Small Block Ford Harmonic Balancers
Brand: Professional Products
SKU: 91015365
Rating: 5 (20 reviews)

20 Reviews

2 Questions

Will fit most 260/289/302/351W/5.0L Ford engines
The counter weight is removable for zero balanced cranks
Both measure 6.4" in diameter, are 3" in total length, and are marked to 40 degrees at three locations

Balance:

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$102.99

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Product Summary

6.40" Outside Diameter, 3.00" Overall Length

Will fit most 260/289/302/351W/5.0L Ford engines
The counter weight is removable for zero balanced cranks
Both measure 6.4" in diameter, are 3" in total length, and are marked to 40 degrees at three locations
These PowerForce series balancers from Professional Products are available in 28 oz. or 50 oz. balance
They feature both 3 and 4 bolt pulley holes, which allows the use of late model serpentine drive systems on early engines if desired

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Key Specs

Brand	Professional Products
Outside Diameter	6.40"

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Need To Know

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Installation Details

Harmonic Balancers Installation Instructions (91015365)

Installation Tips

This engine family used 1 of 5 common length balancers, use the following information to determine your application needed. They are made to early style length of 3" to allow their use in tight applications, but adding on with a spacer for pulleys listed below, you can fit almost any car and pulley combo. These spacers are unique and can only be used with the new balancers shown here. Pulley spacers listed are a 4 bolt design, but can be redrilled for the 3 bolt arrangement.

3" long - no pulley spacer required, white spacer adaptor ring can be removed from balancer
3-3/16" long - limited applications, use 91015366 (#81006) spacer and machine .090" off of 3 surfaces
3-3/8" long - use 91015366 (#81006) spacer
3-7/8" long - use 91015368 (#81008) spacer
4" long - use 91015367 (#81007) spacer

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Details

These PowerForce series balancers from Professional Products are available in 28 oz. or 50 oz. balance. They both measure 6.4" in diameter, are 3" in total length, and are marked to 40 degrees at three locations. Plus, they feature both 3 and 4 bolt pulley holes, which allows the use of late model serpentine drive systems on early engines if desired. Counter weight is removable for zero balanced cranks. Fits most 260/289/302/351W/5.0L Ford engines. 6500 RPM max limit.

See Notes tab for spacer requirements.

28 oz. Balancer (S/B Ford V8 1963-80)

Matches O.D. and thickness of the stock early (1963-69) dampers
Counterbalance weight matches the stock 28 ounce inches
Overall balance specifications are held tighter than the original O.E. tolerances
Dual Bolt Pattern - both the "early" 3-bolt and the "late" 4-bolt patterns
Removeable Counterweight - if building a neutral balance engine simply remove the bolt-in counterweight on the back of the damper

50 oz. Balancer (S/B Ford V8 1981-95)

Made to the early short length of 3" - allows the use of a late 5.0L engine with a 50 oz. in. damper to be used in an early chassis where front clearance is at a minimum
To fit in late vehicles, use spacers to provide the correct front pulley alignment
Dual Bolt Pattern - both the "early" 3-bolt and the "late" 4-bolt patterns
Plastic insert shown in photos can be used to center 3-bolt pulleys with a female pilot, or it can be removed to accept 3-bolt pulleys with a male pilot
Very versatile and can be used on many different Ford engines

Application

91015366 - This spacer must be used when replacing an original balancer that is 3-3/8" long which were typically found on '79 and earlier 351W engines.

91015367 - This spacer must be used when replacing an original balancer that is 4" long which were typically found on '80 and later 351W, '80 and earlier 302, and late model 5.0L engines with some triming of spacer required on 5.0L engines.

91015368 - This spacer must be used when replacing an original balancer that is 3-7/8" long which were typically found on '80 and earlier 351W Ford racing HO engines or '80 and later 351W, 302, or 5.0L engines using the Ford Racing .917" crank sprocket.

Charts

910-15365 Instructions(PDF)

Harmonic Balancer Technical Notes (PDF)

Guides & Documents

Harmonic Balancers Installation Instructions (91015365)

Harmonic Balancers Technical Information (91015365)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

Specifications

KEY SPECS
Brand	Professional Products
Outside Diameter	6.40"

GENERAL
Overall Length	3.00"
Sold in Quantity	Each
Engine Balance	External
Degree Markings	Yes
GTIN Code	Select Balance to see

Ratings & Reviews

20 Reviews

Overall Assessment

Customers highly commend the product for its perfect fit, usability, and high-quality material. It has been consistently praised for its unique 3 and 4 bolt pulls application and timing marks in three locations which ensure compatibility with different timing covers. The product has been identified as a reliable solution for pulley alignment, in addition to its suitability for a range of models including older and newer engines. The balancer's performance, versatility, and affordable pricing continually set it apart from competitors. Buyers are evidently satisfied and recommend it as the best choice for enhancing engine operations.

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20 reviews

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I would by this product again

5.0

2 months ago

RS1

Nassau N.Y.

Verified

Fit well easy to install

Would Recommend

Roller motor

5.0

9 months ago

Mac mac

Stanley NC

Verified

Perfect

Would Recommend

Love the precise measurements on this unit

5.0

a year ago

Tim

North Mississippi

Verified

It's a well balanced compact design.

Would Recommend

Great product, this fit my needs.

5.0

3 years ago

Musckrat

North Carolina

Verified

Love the 3 and 4 bolt pulls applications, the timing marks are in all three locations for any timing cover. The quality is perfect, everything lined up beautifully. Highly recommend this it takes the guess work out when using different timing covers.

Would Recommend

Perfect

5.0

3 years ago

Joe

Arizona

Very nice well packaged worked perfectly

Would Recommend

Late 302 roller in a 65 mustang

5.0

4 years ago

Crashman

San Angelo, tx

Verified

We used this on a 65 mustang with a late 302 roller and used the 3 bolt 50 oz balancer and pulley , all original pulleys lined up perfect -power steering, water pump and alternator, don't use anything else this balancer fits perfect and allows use of old pulleys on new engine.

Seems like a good product for the price

5.0

4 years ago

Dirt Poor Drag Team

Salem Indiana

Verified

Works good and looks great on my engine

Would Recommend

Nice balancer

5.0

4 years ago

Homebuilt

Kansas

Verified

Nice quality, I like the degree marks in multiple locations to work with about any timing pointer

Would Recommend

Absolutely

5.0

5 years ago

Papa T

St. Johns, AZ

Verified

Kevin was great took all the time necessary to get me the right part, right price

Would Recommend

solved my issue installing a 5.0 liter in a 1929 model A

5.0

5 years ago

poppy

Newfoundland Canada

Verified

perfect fit and finish

Would Recommend

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Questions & Answers

2 Questions • 3 Answers

Sort Questions

I just finished a 1985 T5 swap in my '65 mustang. I used the flywheel from the '85 5.0 and as your probably already thinking, yes, I have a bad vibration. Will this 50 oz harmonic balancer fit my early model 302 crankshaft?

by Kroy

• 11 years ago

1 answer

View Answer

is there a differance between harmonic balancers on ford manual trans and automatic

• 14 years ago

2 answers

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2 of 2 questions shown