Page 58 - REPOWER REFERENCE GUIDE (2020)

Propeller Selection
Bravo Three

Engine Model Single Engine Gear Ratio (Primary) Gear Ratio (High Altitude) Twin Engine Gear Ratio (Optional)
2‑barrel 2.43:1 – 2.20:1
4.3L 4‑barrel 2.20:1 2.43:1 2.00:1
MPI 2.20:1 2.43:1 2.00:1
200 2.43:1 – 2.20:1
4.5L
250 2.20:1 2.43:1 2.00:1
5.0L MPI 2.20:1 2.43:1 2.00:1
357 MAG 4‑barrel 2.20:1 2.43:1 2.00:1
350 MAG MPI 2.20:1 2.43:1 2.00:1
377 MAG MPI 2.20:1 2.43:1 2.00:1
383 MAG MPI 2.20:1 2.43:1 2.00:1
383 4‑barrel* 1.81:1/2.20:1* 2.00:1/2.43:1* 1.81:1/2.00:1*
300 2.20:1 2.43:1 2.00:1
6.2L
350 2.00:1 2.20:1 1.81:1
*Use a numerically smaller ratio for boats over 55 mph, and use a numerically larger ratio for boats under 55 mph.
Bravo Three X

Engine Model Single Engine Gear Ratio (Primary) Gear Ratio (High Altitude) Twin Engine Gear Ratio (Optional)
383 4‑barrel 1.81:1 2.00:1 1.81:1
8.2L MAG 1.81:1 2.00:1 1.81:1
8.2L MAG H.O. 1.81:1 2.00:1 1.81:1
540 MAG 4‑barrel 1.81:1 2.00:1 1.81:1
496 MAG 1.81:1 2.00:1 1.81:1
496 MAG H.O. 1.81:1 2.00:1 1.81:1
Bravo Three XR

Engine Model Single Engine Gear Ratio (Primary) Gear Ratio (High Altitude) Twin Engine Gear Ratio (Optional)
8.2L MAG 1.81:1 2.00:1 1.65:1
8.2L MAG H.O. 1.81:1 2.00:1 1.65:1
540 MAG 4‑barrel 1.81:1 2.00:1 1.65:1
496 MAG 1.81:1 2.00:1 1.81:1
496 MAG H.O. 1.81:1 2.00:1 1.81:1

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