How do I know what size exhaust to get?

What Size Exhaust Pipe Should I Use? The quick and easy way to choose what diameter pipe you will need from the headers to the mufflers is to go back to the old rule of thumb, that for every 100 horsepower, 1 inch of total pipe diameter is needed across the system.

Are 302 and 351 exhaust manifolds the same?

Although the header flanges will fit both engines (both engines use the same heads) the headers for the 289/302 will not fit the body in the same way because the 351W is taller and wider than the 289/302. You will need to swap the headers for a pair specifically for the 351W engine.

Will 302 heads fit a 351W?

For the most part 302 heads and 351W heads are the same. Different years can have different combustion chamber sizes but ffor the most part there will be no performance increases by going with 302 heads. Plus you will need to drill all the head bolt holes out as the 351W uses larger head bolts.

Will 351W parts fit on a 302?

A 302 and a 351 are almost interchangeable. All sorts of parts, such as heads, cam, lifters, timing chains, timing chain covers, water pumps, engine mounts, and so on, are included. In bellhousing bolt patterns, all trannies bolt to a 302, so 351 is the same as 302.

What parts are needed to convert a 1987 Mustang to 351?

Take a look at the parts list below and see what’s needed to convert the typical mass air-equipped 1987-93 5.0 Mustang over to the mighty 351: Intake manifold – An EFI intake manifold will be needed to accommodate the 351’s wider dimensions.

Should I upgrade my Mustang to A 351W engine?

At the end, when you’re in the market for an engine build, consider the upgrade to a 351w big power potential and ease of fitment. Take a look at the parts list below and see what’s needed to convert the typical mass air-equipped 1987-93 5.0 Mustang over to the mighty 351:

Are cast manifolds good for a 351?

I said cast maniflolds are good to about 350 to 375 H.P. and 5000 to 5500 for a 351. And they are. Cast manifolds always make better torque at low end than headers within the design parameters. This bull shit started with a guy who wanted to put a 87 351 into a Mustang.

How many cubic inches is a 351 crate engine?

Once your car is set up for the larger 351, the sky is the limit as to power production with as much as 427 cubic inches available via a Ford Performance Crate Engine. We offer you choice of shorty and long tube 351 swap headers.