* Original vs. Replacement: Were you aiming for a completely stock restoration? Or are you okay with aftermarket upgrades? Original-style mounts are available from various suppliers (e.g., reproduction parts houses), but they may not be ideal for high-performance applications.
* Engine Modifications: Has your 340 been modified? A heavily modified engine might need stronger mounts to handle increased power and torque.
* Transmission Type: The type of transmission (automatic or manual) will influence the specific motor mount needed. Automatic and manual transmissions have different mount configurations.
* Aftermarket Parts: Many companies offer performance motor mounts designed for improved durability, reduced vibration, and potentially adjustable placement for fine-tuning.
To find the correct motor mounts, you need to:
1. Determine the originality you're aiming for: If stock originality is a priority, research the correct part numbers for your specific 1972 Challenger 340 combination (automatic or manual transmission). You can find this information in factory service manuals, parts catalogs (like a reproduction of the original Chrysler parts catalog), or online resources dedicated to Mopar muscle cars.
2. If using aftermarket parts: Research reputable brands that specialize in Mopar muscle car parts. These companies often offer various mount options (polyurethane, solid, etc.) Consider your performance goals and budget when choosing. Read reviews and check compatibility before purchasing.
3. Check the transmission: Ensure that the mounts you choose are compatible with your transmission type (automatic or manual).
In short, I can't give you a specific part number without more information. You'll need to do some research based on your specific 1972 Challenger 340's setup. Start with checking for your original mount style and then consider aftermarket upgrades if desired.
