Improve gas mileage on a 427 so ?

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#17 (permalink)

02-25-2020, 05:26 AM

MKS427

CC Member

Join Date: Jan 2017

Location: Glendale, AZ

Cobra Make, Engine: FFR MkIV 427

Posts: 641

Not Ranked

Eric,
The gearing is different from trans to trans, so you will want to evaluate the rear gears too, or you will top out in first quick.

Assuming 26.5" tires
Toploader 2.32 1.69 1.29 1 3.55 or 3.73
TKO-500 3.27 1.98 1.34 1 0.68 ~ 3.08
TKO-600 2.87 1.89 1.28 1 0.82 0.64 ~ 3.27

Good luck.

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