Disclaimer: The following procedure has served me and others well. The author has followed it to winterize my tournament inboard boat and perform some of the recommended annual maintenance for several years now. While this procedure has worked well for me, the Tyler Ski Club and the author make no guarantees or warranties as to its universal reliability in or effectiveness to all applications. If you have any doubt concerning your ability to do this job yourself or as to the reliability or completeness of the information presented here, please consult a professional marine mechanic. Good luck.

Winterization Supply List

All part numbers listed are specific to an Indmar Ford 351 HO and 1:1 Borg Warner Velvet Drive transmission unless stated otherwise.

5 Quarts of motor oil. For engines with flat tappet cams, including Fords and possibly some pre Vortec Chevy marine engines, a motor oil containing the zinc additive ZDDP is recommended. I use Valvoline VR-1 Racing Oil (20W-50).

At least 2 quarts of Dexron III/Mercon Automatic Transmission Fluid.

One can of fogging oil or Marvel Mystery Oil (SAE 10)

Set of 8 spark plugs. Autolite 764 (gap to .035 for the 351 HO) (gap to .045 for PCM GT-40).  Base 351 gets Autolite 24.

Oil filter (For the 351, Motorcraft FL1A, Napa Gold 1515, or comparable WIX filter).

Fuel/Water separator spin-on filter (Napa Part Number 33225)

Fuel filter element (Napa Part Number 39413)

A fluid extractor or drill pump to remove oil and transmission fluid.

Teflon Tape.

Duck Tape.

Can of multipurpose grease.

Multi-Purpose Marine Grease and grease gun.

Carburetor Cleaner.

Enough Sta-Bil Fuel Stabilizer to treat an entire tank of gas.

 If you have a PCM Ford with a Sherwood pump, you want this impeller.  If you have an Indmar engine (Chevy or Ford), you'll need this impeller..

Boat Wax

303 Aerospace Protectant or comparable Vinyl Protectant

A bottle of silicone lubricant spray