SPEEDWAY MOTORS 91618009 Big Block Engine Mounts To 55-57

( Brand: Speedway Motors ), ( Manufacturer Part Number: 91618009 ), ( Type: Motor Mounts ), ( Item Length: 6.00 ), ( Item Width: 5.000 ), ( Item Height: 1.000 ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS Big Block Chevy Bbc To 55-57 Tri five Engine Mounts fits 454

The **Speedway 91618009 Big Block Chevy (BBC) 454 Tri-Five Engine Mounts** are a meticulously engineered set of replacement mounts designed to restore structural integrity, enhance drivability, and improve the overall performance of your 1955 1957 Chevrolet Tri-Five vehicles equipped with the legendary 454 cubic-inch big block engine. Crafted from high-quality, heavy-duty materials, these mounts are built to withstand the immense stress and vibration generated by the powerful yet aggressive nature of the 454, ensuring a secure and stable foundation for your engine bay. The design incorporates precision-machined rubber bushings that provide superior isolation, reducing harshness and road noise while maintaining optimal alignment and torque transfer between the engine and the vehicle s frame. Unlike generic or aftermarket alternatives, these mounts are specifically tailored to fit the unique mounting points of the 454 Tri-Five setup, accommodating the engine s substantial weight and torque characteristics without compromising on durability or fitment. Whether you re restoring a classic Tri-Five to its original glory or pushing it to the limits of modern performance, these mounts deliver a perfect balance of strength, flexibility, and precision. Built to last, they are an essential upgrade for enthusiasts seeking to eliminate unwanted engine movement, prevent frame stress, and ensure a smooth, reliable driving experience all while preserving the timeless appeal and mechanical integrity of your 454-powered Chevy.

### Pros and Cons of Buying Speedway 91618009 Big Block Chevy (BBC) 454 (55-57 Tri-Five) Engine Mounts

1. **Compatibility** These mounts are specifically designed for the 454 cubic inch big block Chevy engines from the 1955-1957 Tri-Five series. This ensures a proper fit without modifications, reducing the risk of misalignment or damage.

2. **Durability** Speedway is a well-known brand in the performance and restoration community, known for producing high-quality, long-lasting parts. Their mounts are typically made from robust materials like steel or reinforced rubber, designed to handle the stresses of a high-performance engine.

3. **Improved Vibration Control** Proper engine mounts help dampen vibrations, reducing wear on the engine block, transmission, and drivetrain. This can extend the lifespan of your engine and improve overall drivability.

4. **Enhanced Engine Stability** These mounts are engineered to keep the engine securely in place, preventing excessive movement that could lead to damage, especially under heavy acceleration or at high RPMs.

5. **Easy Installation** Speedway parts are often designed with straightforward installation in mind, making them accessible for both professional mechanics and DIY enthusiasts.

6. **Support for Performance Applications** If you re running a high-performance engine (e.g., forced induction, nitrous, or heavy-duty applications), these mounts are likely built to handle the additional stress, reducing the risk of failure.

7. **Restoration Accuracy** For classic car restorers, using OEM-style or high-quality aftermarket mounts like these ensures the engine sits correctly, improving the car s authenticity and performance.

---

1. **Cost** High-quality engine mounts, especially from a reputable brand like Speedway, can be more expensive than generic or lower-quality alternatives. This may be a significant investment if you re on a tight budget.

2. **Potential Overkill for Stock Applications** If your engine is running stock power levels and isn t subjected to extreme stress, these mounts may be more than necessary. In such cases, you might save money by opting for standard OEM or cheaper aftermarket mounts.

3. **Installation Complexity** While Speedway mounts are generally easy to install, some may require additional tools or adjustments (e.g., torque specifications, alignment checks). If you re not experienced with engine work, you may need to pay a mechanic for installation.

4. **Compatibility with Modifications** If your engine has been heavily modified (e.g., custom blocks, unusual bolt patterns, or aftermarket components), these mounts might not fit perfectly. Always verify compatibility before purchasing.

5. **Potential for Counterfeit Parts** As with any popular aftermarket part, there s a risk of purchasing counterfeit or low-quality Speedway mounts. Buying from authorized dealers or reputable sellers (e.g., Summit Racing, Jegs, or eBay verified sellers) helps mitigate this risk.

6. **Weight Considerations** Some high-performance mounts may be heavier than stock mounts, which could slightly affect the engine s balance or driveline harmonics in extreme cases. However, this is usually negligible unless you re running a very high-performance setup.

7. **Limited Availability** Depending on your location, these mounts may not be readily available in local stores. You might need to order online, which could involve shipping delays or additional costs.

---

The **Speedway 91618009 engine mounts for the 454 Tri-Five big block Chevy** are a strong choice for enthusiasts who prioritize quality, durability, and proper engine support. They are ideal for high-performance applications, restoration projects, or anyone looking to upgrade from stock or worn-out mounts. However, they come at a higher cost and may not be essential for stock or lightly modified engines.

If you re running a **high-RPM, high-torque, or heavily modified engine**, these mounts are worth the investment to prevent damage and improve reliability. For **stock or mildly modified engines**, you might consider more budget-friendly alternatives while still ensuring they meet your performance needs.

---

- You re restoring or modifying a Tri-Five 454 engine and want OEM-style quality.

- You re running a high-performance engine (e.g., forced induction, nitrous, or heavy-duty applications).

- You prioritize vibration control and long-term durability over cost savings.

- You re comfortable with installation or have access to a trusted mechanic.

- Your budget is tight, and you re running a stock or lightly modified engine.

- You re unsure about compatibility with your specific engine modifications.

- You prefer to test cheaper mounts first before investing in premium parts.

**Final Verdict:** For serious Chevy enthusiasts, these Speedway mounts are a reliable and high-quality option that justifies their cost. Always verify compatibility and purchase from trusted sources to avoid counterfeit parts.

Details:

Must use OEM factory 1955, 1956, or 1957 Chevy 265-283 V8 bell housing. I would buy it again. Must use OEM factory front rubber biscuit mounts front-style engine mount with angle brackets. Mount is designed to use the farthest forward 6-cylinder mount holes in cross member.

Headquarters. Part # 91618009 Sold in Quantity Pair Reviews Yes, would buy again. Yes, I recommend this product. Only need one item at this time.

Part # 91618009 Condition New Brand Speedway Motors Sold Pair Details Bolt a 1965-94 Chevy 396-454 Big Block engine into your 1955-1956-1957 Tri-Five with these simple brackets. Specs Motor Mount Type Frame Pad/Mount Application Compatibility Engine Swap Attachment Bolt-on Material Steel/Rubber Finish Zinc Plated Color Black Bushing Included No Rubber MFG.

part #: 91618009 price

• $57.99

specifications engimou:

• for models: 454
• for makes: Chevy
• brand: Speedway Motors
• mpn: 91618009
• type: Motor Mounts
• item length: 6.00
• item width: 5.000
• item height: 1.000
• california prop 65 warning: True

returns engimou:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer engimou:

• sold: 0
• started: May 2, 2026
• availability: In Stock
• options: Ship-to-home

shipping engimou:

• type: Fixed
• class: Economy, Expedited
• cost: $13.99
• transit: 5-5 Days
• service: Economy, Expedited

general engimou:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts

payments engimou:

• credit card: Mastercard
• other
• wallet: Google-pay

seller engimou:

• rating: 99.8%
• city: Lincoln, NE
• # reviews: 362756

Speedway Motors 91618009 Is Similar To:

• 91303706 Speedway Motors Stainless Steel Motor Mount Bolts Chevy (36.1% similar) Any visual damage must be noted on the shipping document before signing for delivery...(May 9th, 2018)
• 91618012 Speedway Motors Or Degree Chevy Crossmember Mount (49.3% similar) Any visual damage must be noted on the shipping document before signing for delivery.s b, b or 90 degree v6 chevy cross member mount UP106986 mfr. 50 drop plain steel finish use with chevy-style mounts rubber or polyurethane. Material thickness. Use stock chevy type motor mounts. Mounting distance ...(March 21st, 2019)
• 92610808 Speedway Motors Engine Block Clutch Conversion Bracket Nova (41.9% similar) Gov specs mfg. Any visual damage must be noted on the shipping document before signing for delivery. With this bracket you can retain all the stock nova clutch linkage when using a non block. Engine block clutch conversion bracket, nova mfr. Part condition new brand Speedway Motors sold each details...(January 25th, 2019)
• 92612541 Speedway Motors Replacement Motor Mount Bolt Kit For (36.9% similar) Any visual damage must be noted on the shipping document before signing for delivery. Does both sides. Fastens motor mount to block. Part condition new brand Speedway Motors sold each details info 6 piece kit...(September 25th, 2018)
• 92612558 Speedway Motors Replacement Wiper Motor Mounting Hardware (35.6% similar) Any visual damage must be noted on the shipping document before signing for delivery. Part condition new brand Speedway Motors sold each details info correct wiper motor mounting hardware with rubber inserts, ground strap and screws...(September 25th, 2018)
• 92620921 Speedway Motors Engine Frame Mount Pair Camino Bbc (40.3% similar) Any visual damage must be noted on the shipping document before signing for delivery...(October 26th, 2018)
• 94018004 Speedway Motors Front Motorplate With Bushings (34.1% similar) 40 material thickness. Any visual damage must be noted on the shipping document before signing for delivery. Pros: proper fit yes, I recommend this product. 13 overall width 20. 55 bushing diameter. Made for sprint car chassis, should fit all brands. 88 bushing length . I'm inspired by sprint car...(September 6th, 2018)
• Up114452 Speedway Motors Gm Engine Motor Mounts (47.2% similar) Any visual damage must be noted on the shipping document before signing for delivery. Frame brackets must be cut to fit and welded. Warning: these mounts cannot be used in conjunction with tight-fit headers 0114H. Speedway gm LS1 LS6 engine weld-in motor mounts UP114452 mfr. They have urethane ...(August 26th, 2019)
• Speedway Universal Gen Iii 5.7 6.1 6.4 Hemi Engine Swap Weld-in Motor Mounts (33.3% similar) I bought this pair of gen 3 hem engine swap mounts for a project I'm working on, but I didn't end up using them. We adapted the factory mounts to work. These are brand new and untouched. Selling at a discount from the new price because I want them out of my garage. My loss is your gain. They are ...(August 21st, 2022)
• Speedway Universal Chrysler Desoto Hemi Engine Motor Mount Kit (35.2% similar) New condition...(September 23rd, 2022)
• Speedway Motors 9101334 Universal Bolt On Motor Mounts Sbc bbc And Kit (44% similar) These universal bolt-on side motor mounts are designed for small block and big chevy v8 90-DEGREE v6 engines. These quality engine mount bolt kits are designed for use with small block and big chevy motor mounts. The of the slot is 2 from upper motor mount bolt holes on block. Part # 9101334 ...(January 2nd, 2025)