What kind of spark plug do I need for a 302 Mustang?
I was wondering what was the best spark plug i should go with and the size gapping on my car. Its a stock 302 with e7 heads, carburated, e-cam, long tube headers, x-pipe, holley 650 d.p., MSD 6-AL box, 16* timing, and the cam gear is advanced.
What does it mean to have a plug gap?
Plug gap is a balance between available spark and cylinder pressure. The wider the gap, the bigger the spark the better it runs, more power, more economy. But there is a limit. Points ignition can only handle so much. .030 or so. That leaves a little room for the plugs to erode and still fire away.
Where is the spark plug gap on a spark plug?
Spark Plug Gap – understanding the basics. Spark plug gap is where spark plug spark discharge is designed to take place. On a conventional spark plug, it is the area between the center and the ground electrode.
Where are the spark plugs located on a Ford truck?
The spark plugs are located on the left side of the engine (4.9L/300ci inline six) or on both sides of all other V6 and V8 engines.
What’s the difference between spark plugs on a Ford 302?
Spark Plug Size Differences: The 302 came with (2) different size spark plugs. The large plug (left) has a 13/16 hex 18mm thread, and the smaller plug (right) has a 5/8 hex and 14mm thread. Ford switched to the smaller base spark plug in 1977 with the appearance of the D8OE heads.
Do you need a larger gap for a Mustang spark plug?
A larger gap is more efficient as it provides a larger spark for a Naturally Aspirated Mustang. When adding a Power adder like a Supercharger or Turbocharger, you want a smaller gap.
What kind of spark plugs do Fox Mustangs use?
Fox V8 Mustangs were equipped with ASF or AWSF spark plugs. From 1982 to 1985, the High Output (H.O.) version of the 5.0L used one heat range colder.
Do you need a spark plug gap with Hei?
Spark plug gap should go with engine design and combustion chamber design , NOT the ignition system. I would suggest using the gap that orginally was spec-ed for the engine. Changing the ignition system doesnt change the engines spark requirements. HEI was developed for lean air fuel and epa 50]