* Specific 350 variant: The dimensions of the engine can vary slightly depending on the year of manufacture, accessories (like the alternator and power steering pump), and whether it's a 2-bolt main or 4-bolt main block.
* Existing engine bay modifications: If the truck already has a different engine, modifications might be needed. For example, if it previously had a larger big-block engine, some of the mounts or other components might need adjustment.
* Transmission: The transmission used will also impact the fit. Some transmissions are physically larger than others, influencing how easily they fit into the frame. You might need to change motor mounts if using a transmission different from the original.
* Headers: Choosing the right headers is crucial for fitment. Some headers are designed to fit tightly around the frame and steering components.
In short, while a 350 is *commonly* used in a 1970 Chevy pickup and is generally a straightforward swap, it's not a guaranteed "bolt-in" affair. You might encounter minor challenges requiring some fabrication or adjustments. Professional advice from a mechanic experienced with classic Chevy trucks is recommended if you're unsure.
