Common questions

What kind of spark plug do I need for a 440?

What kind of spark plug do I need for a 440?

You have the motor home heads, tapered plug, takes a 5/8″ socket. These are the 452 passenger car heads. Plugs with a ring or crush gasket. See the recess… Here’s yours…that nub is there so you don’t use the wrong plug. Double check this but I think if you look up a 440-3 engine you’ll come up with the right plug.

Where do you put the headers on a 440?

You are MUCH better off laying headers in the engine bay, dropping the engine in & then bolting up the headers. Another big tip I can give you is to heat/remove the exhaust studs from your heads & use “header bolts” instead. You will thank me later when installing the headers.

Do you need headers for a drag racer?

Dropping over $500 on a pair of headers may make sense if you’re a professional drag racer who needs every HP they can get, but it makes zero sense for the guy with a driver who just wants 15% more power vice 16.752% more. For the average guy, a pair of “cheap” headers is the better buy.

What kind of spark plug does a 452 have?

The “gasket plug” heads have a recessed hole. You have the motor home heads, tapered plug, takes a 5/8″ socket. These are the 452 passenger car heads. Plugs with a ring or crush gasket. See the recess… Here’s yours…that nub is there so you don’t use the wrong plug.

You have the motor home heads, tapered plug, takes a 5/8″ socket. These are the 452 passenger car heads. Plugs with a ring or crush gasket. See the recess… Here’s yours…that nub is there so you don’t use the wrong plug. Double check this but I think if you look up a 440-3 engine you’ll come up with the right plug.

You are MUCH better off laying headers in the engine bay, dropping the engine in & then bolting up the headers. Another big tip I can give you is to heat/remove the exhaust studs from your heads & use “header bolts” instead. You will thank me later when installing the headers.

Dropping over $500 on a pair of headers may make sense if you’re a professional drag racer who needs every HP they can get, but it makes zero sense for the guy with a driver who just wants 15% more power vice 16.752% more. For the average guy, a pair of “cheap” headers is the better buy.

The “gasket plug” heads have a recessed hole. You have the motor home heads, tapered plug, takes a 5/8″ socket. These are the 452 passenger car heads. Plugs with a ring or crush gasket. See the recess… Here’s yours…that nub is there so you don’t use the wrong plug.

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Ruth Doyle