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1955-85 Small Block Chevy Balancing Plate

Specs
Material Type:
Steel
Sold in Quantity:
Each
Finish:
Natural
Overall Thickness:
.110
Notes
Fits 1955-1985 SBC with a 2 piece rear main seal.
1955-85 Small Block Chevy Balancing Plate

Click image to enlarge

Details

Reviews (3)

Q & A (10)

What's in the Box

Info

When running a 383 or 400 S/B Chevy with a 153 tooth flexplate or flywheel, you need to have a balancing plate. These fit between the crankshaft and flexplate and correctly balance the engine without resorting to a big heavy flywheel.

Lets you balance your Small Block Chevy 400 or 383 with a 350 flywheel (manual transmission flywheel or automatic transmission flex plate) and a bolt-on balancing plate. Road and race tested. Allows use of lighter 350 flywheel to rev quicker. Precision stamped steel.

916-15375 Instructions (PDF)

Customer Reviews

Rated 5 out of 5 by 3 reviewers.
RATING BREAKDOWN
3 reviews
5 Stars
3
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Bowtieguy
Verified Purchaser
Williamsport. PA

I would purchase this again.

October 24, 2015
Just what I needed.
Yes, I recommend this product.
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Bigfoot
Verified Purchaser
Verified Reviewer
Lebanon, VA

Excellent product!

September 10, 2015
Quickly replaces the hard to find SBC flywheel and balances the engine. The balancing plate is very easy to install correctly, especially with the available bolt kit. Without this balancing plate or 400 flywheel my engine vibrated the whole car at approximately 2000 RPM to the extent I am confident total engine failure would have occurred at very low mileage. Great product for actual car builders!
Pros:
  • Replaces400flywheel
Cons:
  • None
Yes, I recommend this product.
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Mac30
ATL GA

Save money!!

September 29, 2013
Saved me from having to buy a new flywheel for the 4 speed in the camaro when I went to a stroker motor! Great product! Thanks Speedy!
Yes, I recommend this product.
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Product Q&A

10 questions : 11 answers

1 answers

Does this cause starter alignment problems? What adjustments can be made for the starter?

anonamous
January 08, 2015

Does this cause starter alignment problems? What adjustments can be made for the starter?

Answers

January 09, 2015
EricM
This plate is placed between the crankshaft and the flywheel or flexplate so it does move the starter ring gear away from the starter .110". You will need to check your starter tooth engagement after installing this balancing plate. Many of the mini starters have shims between the starter and the adapter block that you can remove to change the depth that the starter pinion gear engages into the flywheel/flexplate ring gear if needed.
1 answers

balance plate is this plate dished in the center? or is the plate flat in the center?

thejagdude
November 20, 2012

balance plate is this plate dished in the center? or is the plate flat in the center?

Answers

November 21, 2012
Jason
This is a flat plate
2 answers

what side of the flywheel does it go on?

June 21, 2011

what side of the flywheel does it go on?

Answers

June 27, 2014
chevywoman
will it work with a 168 tooth flexplate
June 22, 2011
Jason
This should go on crank first, then flywheel
1 answers

Is there a front or back on the way it rotates?? Its a centric so I'm guessing there is a reason for that....

51-chevy-racing
casa grande , az
May 19, 2015

Is there a front or back on the way it rotates?? Its a centric so I'm guessing there is a reason for that....

Answers

May 19, 2015
Eric
Expert
Yes this balance plate must be installed in the correct direction. See the instruction sheet here for the correct orientation: http://static.speedwaymotors.com/pdf/916-15375.pdf
1 answers

do i need to balance with plate? or can i change flywheel and put on plate? thanks Dave

Bro-B
az.
June 26, 2015

do i need to balance with plate? or can i change flywheel and put on plate? thanks Dave

Answers

June 29, 2015
Eric
Expert
This balance plate is for use with a zero balance flywheel or flexplate (such as one from a 350 engine) when installing it onto a 400 engine.
1 answers

I have an auto trans, and want to change to 4 speed do I need to rebalance engine, or can I change flywheel and add plate and go?

Bro-b
AZ
July 14, 2015

I have an auto trans, and want to change to 4 speed do I need to rebalance engine, or can I change flywheel and add plate and go?

Answers

July 15, 2015
Eric
Expert
If you have a 400 or 383 engine that has an externally balanced flexplate on it now then you could use this balance plate as well as a zero balanced flywheel (from a 305 or 350). No re-balancing of the engine would be necessary.
1 answers

My flex plate is dished where the balancing plate will bolt. Do I just put it on anyway and torque it down?

KORacing
May 13, 2016

My flex plate is dished where the balancing plate will bolt. Do I just put it on anyway and torque it down?

Answers

May 16, 2016
Zach
Expert
This needs to be used on a flat surface so the plate doesn't bend
1 answers

Can you us this on a racing motor that used the 400 flexplate that is external balance I need to use a 153 flexplate with my Bert bell housing it's a 55-85 sbc motor

dj
urbana,ohio
May 22, 2016

Can you us this on a racing motor that used the 400 flexplate that is external balance I need to use a 153 flexplate with my Bert bell housing it's a 55-85 sbc motor

Answers

May 24, 2016
Eric
Expert
Yes, this balance plate is for 383 and 400 small block Chevy engines that require an externally balanced flex plate. This will allow you to use a zero balance 350 flex plate such as a 153 tooth flex plate like you need.
1 answers

Do i need to use it with a manulal trans in a 85 firebird using a stock fly wheel? had a 305.

me
United States
July 22, 2016

Do i need to use it with a manulal trans in a 85 firebird using a stock fly wheel? had a 305.

Answers

July 25, 2016
John
Expert
85 small block was internal balance and not requiring an external balancing plate. If we are using the 85 flywheel on a later engine the bolt pattern will be different. If using the 85 flywheel on a stroker motor changed to external balance then the balance plate will be needed.
1 answers

will this work on 168 tooth 350 flywheel

tom
United States
September 29, 2016

will this work on 168 tooth 350 flywheel

Answers

September 30, 2016
Eric
Expert
Yes this will work on a 153 or 168 tooth 350 flywheel or flexplate. When using with a flex plate this balance plate will need bent forward slightly so that it clears the shape of the flexplate.
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