Original 4cyl or V8 question.

[Grant211]

I’ve seen several people ask the question on a v8 mustang if it was an original v8 or 4cyl conversion.

What’s the importance?

If the mustang was immaculate and it was a 4cyl converted to a v8. How would this be a negative?

Besides the obvious (motor), what is the real difference in an original v8 and 4cyl?








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[broncojunkie]

The main reason people ask is because originality adds to the value. An original v8 car is typically worth a little more. As for real differences, it depends on year and model. Most 4 cyl cars had slightly smaller brakes and a 7.5 rear end, as opposed to 8.8 (pre 86, iirc, were all 7.5... no 8.8 available even in v8 cars). In the manual shift foxes with t5 5 speed, the 4 cyl t5 can be made to work with a v8 by swapping in the correct size pilot bearing. The transmission itself was weaker, had a smaller diameter input shaft end, and was geared differently. Those are a few mechanical differences. Other things such as smaller, cheaper wheels, more basic interiors, and plain exterior trim packages were also common.