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The Proform 66510 Harmonic Balancer is a vehicle-specific component designed for optimal performance. Weighing just 8.24 pounds and measuring 7.2 x 7.3 x 3.1 inches, this durable balancer is manufactured in Mexico and is a direct replacement for OEM part number 66510, ensuring a perfect fit and reliable operation.
| Manufacturer | Proform |
| Brand | ProForm |
| Item Weight | 8.24 pounds |
| Product Dimensions | 7.2 x 7.3 x 3.1 inches |
| Country of Origin | Mexico |
| Item model number | 66510 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 66510 |
| OEM Part Number | 66510 |
M**B
Actually Flat, Awesome.
Sounds simple, but its critical your ballancer be flat (square) and ballanced. This NEW Balancer from ProForm was just that. Worked great for my 1983 350 Small Block Chevy.
P**L
Just like the old one fit perfect
Just like the original
B**F
Five Stars
looks good and fast shipping
M**E
Five Stars
runs my engine just fine the balance is great
R**T
Does not fit 1957 Belair
To large for 1957 Belair 283. Diameter and height to large compared to OE.
A**A
Five Stars
SO ROUND WITH HOLES AND SLOTS
D**I
Not sure what brand this is.
There is no finish on this product so you need to spray paint it yourself if you don't want it rusty. There is one timing mark. It's generic made in Mexico. Not sure what brand it really is. For the price I can't complain.
K**8
Good
Good
A**R
As it should be
Worked perfect
Trustpilot
1 month ago
2 weeks ago