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#91015364
Chevy 383-400 Lightweight Harmonic Balancer, 6-3/4Inch
- 6 3/4" harmonic balancer for 383/400 Chevy
- Weighs 6.4 lbs.
- Weighs 7 3/4 lbs.
$88.99
/each
In Stock
Quantity
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Product Summary
6.75" Outside Diameter, 1.25" Inside Diameter, Steel
- 6 3/4" harmonic balancer for 383/400 Chevy
- Weighs 6.4 lbs.
- Weighs 7 3/4 lbs.
- Balancing cut out on the back side to hide the crank type
- Rated to 6,500 RPM
Key Specs
| MFG. Part # | 91015364 |
| Brand | Speedway Motors |
| Outside Diameter | 6.75" |
| Material Type | Steel |
| Finish | Painted |
Need To Know
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Speedway Motors 91015364 Details
This 6-3/4" balancer fits 383/400 c.i. Small Block Chevys and only weighs 7-3/4 lbs. Plus, the balancing cut out is on the backside so they cant tell what crank youre running. Damper is a press-on fit.
- Durable nodular iron construction
- High temperature elastomer bond
- This balancer is 1.20" thick
- Rated to 6,500 RPM
- NOT SFI approved
Item Details
Externally Balanced
Speedway Motors 91015364 Specifications
Speedway Motors 91015364 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91015364 |
| Brand | Speedway Motors |
| Outside Diameter | 6.75" |
| Material Type | Steel |
| Finish | Painted |
| GENERAL | |
| Inside Diameter | 1.25" |
| Overall Thickness | 2.20" |
| SFI Rating | Not SFI-approved |
| Weight | 7.75 lbs. |
| Sold in Quantity | Each |
| Notes | Rated to 6,500 RPM |
| Engine Balance | External |
| Degree Markings | Yes |
Ratings & Reviews
5
5 Reviews
Customers highlighted the exceptional quality and practicality of our product. It was praised for its excellent fit in the space available, distinguishing it from competitors. Users lauded it for looking great and not interfering with other parts. A key feature is its exquisite design and robust build, which has proven to be more reliable than OEM replacements at high RPMs. Some particularly appreciated its discreet appearance, mimicking a 350 balancer - a detail that adds a layer of privacy for those running a 383 or 400. Customers recommended it for its reliability and superior performance.
Ratings & Reviews
5
5 Reviews
Customers highlighted the exceptional quality and practicality of our product. It was praised for its excellent fit in the space available, distinguishing it from competitors. Users lauded it for looking great and not interfering with other parts. A key feature is its exquisite design and robust build, which has proven to be more reliable than OEM replacements at high RPMs. Some particularly appreciated its discreet appearance, mimicking a 350 balancer - a detail that adds a layer of privacy for those running a 383 or 400. Customers recommended it for its reliability and superior performance.
5
5 reviews
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Filter by Ratings
Very nice Balancer
5.0
2 years ago
Thumper
Caruthersville Missouri
Verified
I purchased a new balancer for my 406 race engine.
Would Recommend
383 STROKER/ 400 BALANCER
5.0
2 years ago
Kurt
Oshkosh WI
Verified
Bought Speedways 383 rotating assembly to upgrade my 350. It wasnt until I had my local machine shop attempt to balance my parts did I find out that the 400 crank used in kit is externally balanced, my 350 balancer will not work as the 350 is internally balanced. Not a big deal, just a time delay and education. Almost think the balancer should be part of the rotating assy kit.
Would Recommend
Looks Great.
5.0
6 years ago
Ken
Nashville TN
Verified
Fits the space I have in my Nova with hitting aftermarket steering parts.
Would Recommend
Excellent
5.0
8 years ago
Ron
Fla
Verified
Super trick part
Would Recommend
Much better than stock
5.0
15 years ago
Racer X
Indiana
I have had great luck with this balancer. I turn my claimer engines just over 7k rpm and have had more than one oem replacement balancers come apart. This balancer has the added benefit of looking like a 350 balancer so everyone does not know at a glance that you are running a 383 or 400. Once the pulley is on it looks factory other than the timing marks which can be painted over if you wanted.
Would Recommend
Showing 5 of 5 reviews
Questions & Answers
Questions & Answers
4 Questions • 4 Answers
If I use this balancer on a 383 do I have to have a balanced flywheel( straight shift)? Running a 350 now want to use same flywheel clutch and pressure plate. Thanks Steve
by steve
• 8 years ago
1 answer
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does it have counter weight bolted to the back or is it machined out of the back
by dennis
• 9 years ago
1 answer
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This is 6-3/4 Inch, the one on the 400SBC that I have is 8" 1.5 thick with this one work?
by sierraree
• 10 years ago
1 answer
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What is the thickness of this balancer. I'm concerned with clearance on my finned timing chain cover using a cam driven fuel pump?
by alan
• 15 years ago
1 answer
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4 of 4 questions shown