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Prothane 7-504-BL Polyurethane S/B or B/B Chevy Motor Mounts

SAME DAY SHIPPING! Order within the next 9 hours 8 minutes and receive same day shipping

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Distance from the back of the mount to thru-bolt centerline is 1.75".
Prothane 7-504-BL Polyurethane S/B or B/B Chevy Motor Mounts
Prothane 7-504-BL Polyurethane S/B or B/B Chevy Motor Mounts

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Prothane 7-504-BL Polyurethane S/B or B/B Chevy Motor Mounts

Please NOTE the following about this product:

  • This item is sold as a pair.



Q & A

What's in the Box

These black polyurethane motor mounts for S/B and B/B Chevy are much stronger than OE rubber mounts but still reduce vibration.

  • Limits unwanted movement thereby putting more power to the wheels
  • Tough like solid metal mounts without the vibration and noise
  • Resistant to oil, chemicals and road contaminants that typically deteriorate rubber

You may also be interested in:

Stainless Motor Mount Covers
                        Cover stock mounts with polished stainless covers. Fits over most Chevy V8 stock rubber mounts.
Billet Small Block Chevy Motor Mounts

Our billet motor mounts are machined from 2025 aluminum and include bushing inserts. Fully polished finish. Includes universal frame adaptors.

  • Flange Face to Bushing Eye:  3.5"
  • These mounts are generally too wide for Model T & Model A chassis
TH350 Transmission Cushion Mount-Polyurethane

Heavy duty Turbo 350 polyurethane replacement for original GM mounts. Features a built-in safety lock to prevent separation. For race or street race use.

Fits "most" GM transmissions having a mount on the tailshaft. The bolt spacing for the tranny mount will accomodate 3-3/4" to 4-1/4" bolt pattern on the transmission. For TH350 application.

3-Bolt Chevy Rubber Motor Mounts for 90 Degree V6, Small Block/Big Block V8

These 3-bolt S/B Chevy rubber motor mounts are manufactured to meet or exceed OEM specifications. Fits most 1958-73 Chevy passenger cars with small block V8. Sold as a pair.

  • Unique rubber formula provides good abrasion resistance and aging stability
  • Ensures maximum life and performance
  • Application-specific Durometer (hardness) based on engine weight & torque
  • Special Chemlock® bonding agent ensures superior rubber-to-metal bond