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Net and Gross HP

George et al.

During the years Ford was selling the DeT Pantera in N.A. there was a change in the way HP was measured and assigned to an engine. If memory serves me correctly that was sometime in '72-'73.

As a result, aside from changes to pistons, heads, CR, camshaft degree change, exhaust emissions etc. there was a change in the way HP was measured at the flywheel, by Ford, for the Cleveland. Early cars had Gross HP ratings while later cars (ie. 74) had Net HP ratings.

Can you comment on this?

Yours
B.G.
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