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Speedway 1955-57 Chevy Car V8 Motor Mount Kit

Specs
Sold in Quantity:
Pair
Speedway 1955-57 Chevy Car V8 Motor Mount Kit

Click image to enlarge

Please note the following about this product:

  • This item is sold as a pair.

Details

Reviews (24)

Q & A (11)

What's in the Box

Info

Side-mount motor mounts are a more rugged mount design than the original front mounts found on your Tri-Five Chevy, plus they allow more room for front drive accessories. Our motor mount kit allows you to side-mount 1958-up S/B Chevy 283-400 c.i. V-8 engines into your 1955, 1956, or 1957 Chevy passenger car.  Will also work on 396-454 big block engines.

Includes frame brackets, engine brackets, rubber mount cushions, hardware, and instructions.

1955-1957 Chevy Bolt-In Motor Mount Installation Instructions

Customer Reviews

Rated 4.6 out of 5 by 24 reviewers.
RATING BREAKDOWN
24 reviews
5 Stars
18
4 Stars
5
3 Stars
0
2 Stars
0
1 Star
1
RECOMMEND THIS PRODUCT:

BamBam55
Verified Purchaser
Los Angeles

Very well made & good looking motor mount kit !

August 11, 2016
I help my friend install them on his 55 wagon & going to build a new engine for my 55 i just love the fit & look !
Pros:
  • Easy To Install
Cons:
  • None
Yes, I recommend this product.
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Geezer
Verified Purchaser
Ottawa Ontario canada

Parts are great Very happy with ALL my orders from Speedway.

July 19, 2016
Excellent parts . Service is fast and efficient. Very helpful in answering my questions to make sure I get the right parts for my 57 Chev. I always order from this company because of trust
Yes, I recommend this product.
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ET
Verified Purchaser
White Mills.Ky.

Just what the Dr. ordered!

May 26, 2016
Haven't installed yet,but it is exactly what I need for my application.
Pros:
  • Ease Of Assembly
Yes, I recommend this product.
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Fred
Verified Reviewer
Ny

I would by this product again and again

May 08, 2016
Installed on 57 Chevy 350 motor made very strong fits perfectly I painted them
Yes, I recommend this product.
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Tony
Verified Reviewer
TN

Nice brackets JUNK RUBBER

April 24, 2016
These things depend on a tiny bit of rubber to hold your engine from moving laterally. They do fine to hold it down, but if you have any HP at all, who knows where your motor will wonder to. Mine developed an awful noise which I traced down to the fan hitting the shroud. Yes the motor moved in a clockwise direction looking at it from the top. Even broke the rear tranny mount. To make things even worse, the shoulder bolts they use (no grade markings = junk) one bent! And the shoulder portion of them are too long not allowing you to tighten the bolts to the proper torque without the nut bottoming out on the shoulder bolt first, leaving a loose fit. Well it was tight at first but after a few weeks it settled on the rubber and tightening the bolts did nothing since the nuts were hitting the shoulder bolts. I ordered a different set of rubber biscuits that rely on STEEL to keep it from moving laterally. They have a steel piece like the original front mounts, but larger, that holds the rubber straight.
No, I would not recommend this product.
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Merchant Response:

This customer reached out to our Customer Service Team and has been refunded in full. The feedback has been forwarded to our Quality Control Team for their review.
40coop
Verified Purchaser
Labadie Mo.

v8 mount

April 22, 2016
installation went smoothly, holes drilled easily do to thickness of the cross member.The rubber mounts have issues with proper sequence of parts.refer to other reviews.
Yes, I recommend this product.
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mad57dav
Verified Purchaser
Verified Reviewer
Hurst,Tx

excellent part good service

March 08, 2016
Good product
Yes, I recommend this product.
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Tony Botchagaloop
Verified Purchaser
Verified Reviewer
TN

Heavy duty

December 20, 2015
Well made with great welds. Only problem is that the rubber cushion makes the motor sit a little too high, and they don't show in the pictures or instructions some giant 1/8" thick washers. Between the 2, it will raise your motor 1/4". So I'm cutting down the bushings and deleting the washer that isn't in the instructions anyway. Also took a small amount of grinding to fit the frame properly, but that is very minor.
Yes, I recommend this product.
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J2X Customs
Verified Purchaser
Verified Reviewer
Choctaw OK

55-57 BBC motor mounts

November 15, 2015
They worked for my application. I had to weld them in though, because they just didn't quite fit my frame. Overall great product.
Yes, I recommend this product.
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Abes
Verified Purchaser
Niagara falls ny

Fast service

July 24, 2015
Fit very well
Yes, I recommend this product.
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Page 1 of 3

Product Q&A

11 questions : 20 answers

1 answers

Can I used a stock fuel pump with these? any pump clearance issues? Stock fuel pump sits very close to the cross member, just asking about clearance

jeseal
Natchez, MS, USA
September 23, 2014

Can I used a stock fuel pump with these? any pump clearance issues? Stock fuel pump sits very close to the cross member, just asking about clearance

Answers

September 24, 2014
EricM
These motor mounts go in place of the OEM side mounts and should not interfere with a stock fuel pump.
1 answers

i want to use this kit with the 91618016 plates and the 91628910 crossmember to put an LS engine and 4L60e transmission in a 55 Chevy. Will it work?

55phil
Louisiana, USA
September 08, 2014

i want to use this kit with the 91618016 plates and the 91628910 crossmember to put an LS engine and 4L60e transmission in a 55 Chevy. Will it work?

Answers

September 10, 2014
EricM
Yes that combination should all work together in your 55 Chevy to mount an LS engine and 4L60E transmission.
1 answers

will they fit a 1986 307 oldsmobile engine got for free an engine and transmission from my buddy's. its a 1986 cutlass supreme v8 i believe its a 307. I'm just trying to put this engine and transmission in part time until i have money to rebuild original engine.I want the bolt on kit no welding required.

tony57belair
san bernardino
March 02, 2014

will they fit a 1986 307 oldsmobile engine got for free an engine and transmission from my buddy's. its a 1986 cutlass supreme v8 i believe its a 307. I'm just trying to put this engine and transmission in part time until i have money to rebuild original engine.I want the bolt on kit no welding required.

Answers

March 03, 2014
EricM
Sorry this kit is for Chevy V8 engines only and will not fit your Oldsmobile engine. I do not have an engine mount kit for an Oldsmobile.
4 answers

Do I need to drilll holes? Do I need to drill new holes for these brackets or are there existing holes in the frame? Could you post the instructions or email them to me? Thanks

djanspach
Wisconsin
April 01, 2013

Do I need to drilll holes? Do I need to drill new holes for these brackets or are there existing holes in the frame? Could you post the instructions or email them to me? Thanks

Answers

November 24, 2013
reowag
They can be mounted by drilling holes and bolting or welded in place as I did. Either way they make a very sturdy mount.
September 29, 2013
47Willie
Don't know if your frame has been modified previously, otherwise you will need to drill holes or weld in place.
September 27, 2013
CrazyJoeAirbrush
Yes, you will need to drill
April 02, 2013
Jason
Part number 91018055 is a motor mount kit for both the small block and big block Chevies into a 55-57 Chevy passenger car. We apologize but there are no instructions available because of the variation of engine locations used by customers. There will be drilling involved in mounting the engine in your desired location.
4 answers

do these mount engine in stock location or forward from stock?

warren, MI
January 22, 2012

do these mount engine in stock location or forward from stock?

Answers

November 24, 2013
reowag
They mount in stock location.
September 29, 2013
47Willie
Before removing front mounts, put side mounts in place and drill holes to use stock location for small block. If you are using a Big Block you will have to take measurements to know how far forward toward the radiator the holes will have to be drilled.
March 05, 2013
55PROJECT
They may be used in stock or moved to new location. Weld existing hole with 1 1/8" plate and drill new 1 1/8" od hole to suit. Probably 3/4" forward to clear firewall with a HEI. I moved the hole 3/8" toward the passenger side to clear power steering box.
January 24, 2012
John
Part number 91018055 These mounts are for installing small blocks in approximately the stock location and with the frame design allows minimal movement forward from stock.
2 answers

do these fit a 2pc frame or 1pc seamless frames or both? thank you!

warren, MI
January 22, 2012

do these fit a 2pc frame or 1pc seamless frames or both? thank you!

Answers

September 27, 2013
CrazyJoeAirbrush
Both
January 24, 2012
John
Part number 91018055 These Tri-5 mounts are applicable to either the 2 piece or 1 piece frames.
2 answers

Will this fit 55 chevy with big block?

Rays55
San Antonio, ,TX
October 01, 2011

Will this fit 55 chevy with big block?

Answers

September 29, 2013
47Willie
I am told that the same mounts will work for a Big Block, I have a small block 350.
October 03, 2011
John
These side mounts are for the small block Chevy but we do offer a front cradle mount number 1356852 used in conjunction with number 1353298 frame mounts and cushion kit number 7209314. Another option using the original front pads are part number 91618009.
2 answers

do it fit in a chevy truck 1955?

Monkeyman
Sweden
August 03, 2011

do it fit in a chevy truck 1955?

Answers

September 29, 2013
47Willie
Should work fine, you should have more room for the installation.
August 05, 2011
John
This kit is designed specifically for the Tri-5 Chevy cars and will not be a direct fit without modification and alteration when used in a truck. What we do have is part number 7204771 which is Chevy V8 into the 55-59 Chevy pickup. This utilizes the same cushion kit but the rest of the hardware and brackets is specific to truck applications.
1 answers

Will this work for an LT1 out of a '95 Camaro?

August 01, 2011

Will this work for an LT1 out of a '95 Camaro?

Answers

August 03, 2011
John
These tri-5 motor mounts bolt in place of the 3 bolt OEM mount cushions on the side of the 1958 and up small block V8’s till the introduction of the LS1 engines. The frame brackets are designed as a bolt in package with the mentioned engines and for same frame location could use our LS1 adapter plates on an LS1 in conjunction with this kit if desired.
1 answers

will these work with tube long type headers

phil
south louisiana
September 01, 2015

will these work with tube long type headers

Answers

September 02, 2015
Andy
Expert
Part number 91018055 is a motor mount kit for both the small block and big block Chevy engine into a 55-57 Chevy passenger car. If you have a small block Chevy engine in your car we have headers available that should work for you, if you install your engine in a stock location. Some of the pt #s are 930C7, 930C7H and 930C7S. If you purchased these any of these headers from Speedway Motors the side mounts should work fine If you have or will have a Big Block Chevy engine, the headers we offer will not work with side engine mounts, as they will locate in the center on each side of the engine.
Page 1 of 2

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