P/N: 4MB020-010
©2003 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
06DEC02 V1.0(4MB HP500 v1.0)
TOOL AND SUPPLY REQUIREMENTS:
• Factory Repair Manual
• Masking Tape
• Marking Pen
• GM Pin Tool P/N:12014012-1
• 3/8" Drive and Socket Set: SAE and Metric
• 1/2" Drive and Socket Set: SAE and Metric
• Adjustable wrenches
• Open End Wrenches: SAE and Metric
• 8 Quarts SF Rated Quality Engine Oil
• Loctite Sealer #RC-609
• Oil Filter and Wrench
• Screwdrivers: Flat and Phillips
• Heavy Grease
• Silicone Sealer
• Drill Motor and Drill Bit Set
• Teflon Paste Sealant
• Zinc Chromate Spray
• Anti-seize
This kit should only be installed by qualified marine mechanics . It is imperative that the
correct air/fuel mixture be maintained at all times. Before beginning this installa-
tion, please read through this entire instruction manual and the Owner's Manual
which includes the Vortech Supercharger Limited Warranty.
This kit should only be installed by qualified marine engine and drive mechanics that can
properly set correct air-to-fuel ratios, proper drive specifications and fuel systems.
This product is intended for use on healthy, well maintained engines. Installation on a
worn-out or damaged engine is not recommended and may result in failure of the engine.
Vortech Engineering is not responsible for engine damage. Installation on new
engines will not harm or adversely affect the break-in period so long as factory break-
in procedures are followed.
Mercruiser Marine HP500 EFI
Installation Instructions
PLEASE READ CAREFULLY
For best performance and continued durability, please take note of the following key
points:
1. Use only premium grade fuel 91 octane or higher (R+M/2).
2. The engine must have stock or lower than stock compression ratio.
3. If the engine has been modified in any way, check with Vortech prior to using this
product.
4. Always listen for any sign of detonation (pinging) and discontinue hard use (no boost)
until problem is resolved.
5. Perform an oil and filter change upon completion of this installation and prior to
operating the vessel. Thereafter, always use a high grade SF rated engine oil or a high
quality synthetic, and change the oil and filter every 25 hours.
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