* Aftermarket Motor Mounts: These are the most common solution. Many companies, such as Engine Mounts, Hooker, UMI Performance, and others, manufacture motor mounts specifically designed for a small-block Chevy swap into a '55-'57 Chevy. These mounts typically use polyurethane or rubber bushings for vibration dampening. They're designed to position the engine correctly for proper drivetrain alignment and clearance. This is generally the easiest and most readily available option.
* Custom-Fabricated Mounts: A skilled fabricator can create custom mounts. This gives you ultimate flexibility in placement but requires more time, skill, and potentially more cost than using readily available aftermarket mounts.
* Using Existing Mounts with Modification: This is generally *not recommended*. Trying to adapt the original mounts is likely to result in poor engine alignment, excessive vibration, and potential damage to the engine or chassis.
Things to consider when choosing mounts:
* Engine position: The mounts will determine the engine's location in the engine bay. Consider factors like hood clearance, steering clearance, and exhaust routing.
* Bushings: Polyurethane bushings are generally preferred for their durability and better vibration dampening compared to rubber.
* Price: Prices vary widely depending on the brand and features.
* Reviews: Check online reviews before purchasing to see what other users have experienced.
Before purchasing mounts, you should:
* Identify your specific chassis: While '55-'57 Chevys share similarities, there might be subtle differences.
* Determine your engine accessories: The location of your alternator, power steering pump, and other accessories will affect mount selection and potentially require specific modifications.
* Check for clearance issues: Ensure there's sufficient clearance for the engine, transmission, headers, and other components.
In short, buy a set of aftermarket motor mounts designed specifically for a 1956 Chevy with a 350 small-block Chevy engine. Don't try to improvise; it's a recipe for trouble. Searching online retailers specializing in classic car parts will yield many results. Always double-check the compatibility information provided by the seller.
