I have a 1978 Excecutive motor home with a Dodge 440-4 engine. Can you tell me what the difference is between a 440-4 and a standard 440? Can I use a 440 from a one ton van in place of a 440-4? According to my local car parts store the casting number on the block (4006630-440-4)is for a standard 440 engine.I no longer know where to turn to find this info.
sounds to me like it's just refering to a 440 with a 4 bbl carb? it's probably refered to as a 440 4 because in 1978 compression ratios and horsepower ratings were at an alll time low due to the oil embargo. And many big blocks sadly came with 2 bbl carberators instead of 4's. your 78 being in a motor home, and needing a little more grunt to pull that weight, it most likely equipped with the 4 bbl carb, and probably a cam shaft that was designed for low end torque. Any 440 parts should be interchangeable. now you're asking about swapping it for a van motor? is the motor home engine blown? if so the swap should be as simple as pulling the motor and bolting up the new one. if you have the tools and knowledge.
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