Built To Last! Remanufactured Marine Engines with Nationwide Parts & Labor Warranty
Speed Pro pistons, made of a special hypereutectic alloy and coated with moly, are less prone to scuffing on cold starts and virtually eliminate ring groove pound-out.
Positive intake seals meter the oil to the valve stems to reduce oil consumption and help prevent abnormal combustion.
Melling double roller, heavy-duty timing chains have passed GM's 400-hour "dock test." No car-type link chain has ever passed this test.
Brass freeze plugs will never rust or corrode like the standard steel ones found in most other engines.
Premium-quality Hastings ring sets with moly top rings seal better and last longer.
Heavy-duty valves with chrome-plated stems minimize wear to insure longer life and better performance.
Power: 330+HP Designed to meet or exceed factory HP spec
Displacement: 7.4L 454 CID
Block: 1 piece rear seal, Mark VI, with mechanical fuel pump provision
Camshaft: Hydraulic Roller Tappet
Cylinder Heads: Small Oval Intake Ports & Oval Exhaust Ports
Includes: Oil Pan, Valve Covers and Front Timing Cover.
Direct Replacement for the following block casting numbers:
Nationwide 18 Month / Unlimited Hours parts & labor warranty. (Click on Document tab above for full details.)
Performance Marine Engine Lubricants