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Will a 350 4 bolt fit in 1984 Chevy Caprice?

A 350 small-block Chevy (SBC) 4-bolt main engine *will* physically fit in a 1984 Chevy Caprice, but with caveats. The Caprice came with a variety of V8s, and the 350 was a common option, so the engine bay is designed to accommodate it.

However, you need to consider:

* Engine Mounts: You'll need the correct engine mounts for a 350. The mounts from a Caprice that originally had a 350 would be ideal. Using incorrect mounts can lead to vibration and potential damage.

* Transmission: You'll need a compatible transmission and its associated components. The transmission bellhousing must match the engine block. You'll need to use a transmission appropriate for the 350.

* Wiring Harness: The wiring harness may need modification or replacement to accommodate the 350. The original harness may not match the configuration of your new 350.

* Exhaust System: The exhaust system will likely need to be modified or replaced to fit the 350.

* Accessories: Power steering, alternator, etc., will need to be compatible with your chosen 350 and mounted correctly.

In short, while it *fits*, it's not a simple bolt-in swap. Significant mechanical work is required, potentially involving fabrication or professional help. You'll need to ensure all the supporting systems are compatible and properly installed to avoid issues.