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1977 Pontiac 400 Ci engine and want to install it in my 67 lemans what motor mounts should you use?

You can't directly use the stock 1967 LeMans motor mounts with a 1977 Pontiac 400. The engine block's mounting points changed over the years. You'll need aftermarket motor mounts designed for a Pontiac 400 in a 1967-69 A-body (LeMans, GTO, Tempest, etc.).

Several companies manufacture these mounts. Popular choices include:

* Energy Suspension: Known for their polyurethane mounts which offer better durability and handling than stock rubber.

* Prothane: Similar to Energy Suspension, offering polyurethane mounts.

* UMI Performance: A higher-end option, often offering stronger and more precisely engineered mounts.

Finding the right mounts: When ordering, be absolutely certain to specify:

* Year of the car: 1967 LeMans

* Engine: 1977 Pontiac 400 cubic inch

* Automatic or Manual Transmission: This affects the mount location and type.

Important Considerations:

* Frame Modifications: In some cases, minor frame modifications might be necessary for proper fitment, even with aftermarket mounts. It's wise to consult installation instructions thoroughly.

* Exhaust System: You'll likely need a custom exhaust system or significant modification to the existing one to clear the 400's larger dimensions.

* Oil Pan: The 400's oil pan might interfere with the frame; you may need a different oil pan (e.g., a "low-profile" pan).

* Steering: The larger engine might impact steering linkage clearance.

Before purchasing mounts, it's best to check with the manufacturer to ensure complete compatibility. Reviewing installation instructions is also crucial; pictures are immensely helpful. A forum dedicated to Pontiac A-bodies can provide valuable advice from others who've undertaken similar swaps.

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