Login New Account Shopping Cart International Shipping Options Marine Parts + Product Diagrams + Technical Resources + Contact Us Replacement Boat Engines I love my boat but the engines are on their last leg. Should I try and upgrade with new engines, or just sell the boat and start over? This is one of the most common questions boaters are faced with today when its comes to replacing the engines in older model boats. There are a number of factors to consider when replacing the engine, so this Selection and Shopping Guide will help you drill down to see what option best fits your boat’s situation. It’s important to realize how the 2010 Marine Engine EPA regulations changed the overall topic of replacing the engine, so this is something every boat owner needs to be aware of. 1) Do you want a complete Bobtail Engine, Power Package Motor or just the Longblock? 2) Do you want a New Marine Motor or Remanufactured? *SHOP ONLINE* BOBTAIL ENGINES POWER PACKAGE (PAR PAC) ENGINES LONGBLOCK ENGINES Selecting the Correct Model of Marine Engine for Beginners and/or Novice Boaters There’s no shame in finding it difficult to distinguish one model 454 Marine Engine from another. Over the years the various marine manufacturers have changed both V6 and V8 engine models so many times it can be difficult even for Marine Engine distributors to properly identify the correct engine model for a customer. Typically, verifying the Engine Casting Number (link to block casting number location) along with the Cylinder Head Casting Number (link to head casting number location) is the best way to identify your Marine Engine correctly. Providing customers with solutions is where PPT stands above the other Marine Engine suppliers in providing technical assistance and information to help you properly determine the correct motor model for your application. PPT maintains a A+ rating with the BBB for one simple reason; WE TAKE CARE OF OUR MARINE ENGINE CUSTOMERS! Don’t be fooled by other Marine Engine retailers advertising 7 year warranties or 30% better fuel economy; those are simply gimmicks. The bottom line with Replacement Marine Engines is that you get what you pay for. Marine Engines Technical Library CATEGORY DESCRIPTION 3.0L Engines How to select the correct 2.5L or 3.0L engine 3.0L Longblocks – Reman or New? My 3.0L Block is Cracked. Should I Purchase a New Longblock or Remanufactured? 3.7L/470 Marine Engine Repowers My Mercruiser 470 Engine Is On Its Last Leg. What Options Can I Consider to Replace It? 4.3L Engines How to select the correct new 4.3L marine longblock 5.0L/5.7L Engines How do I select the correct new 5.0L or 5.7L longblock? 7.4L/8.2L Engines How do I select the correct 454/502 (7.4L/8.2L) new marine longblock? 7.4L/8.2L Versus 496 Repower’s Replacing your 454 marine engine with the newer 496 engine 7.4L (L29) vs 454 Mag Models How to Identify the 310 Hp L29 454 Engine Model vs Other 330 Hp & 385 Hp 454 Engine Models Block Code Indentification 4 Cyl Mercruiser Engine Block Code Identification Table For Properly Identifying Your Mercrusier 4 Cylinder Marine Engine. Block Code Indentification 6 Cyl Mercruiser Engine Block Code Identification Table For Properly Identifying Your Mercrusier 6 Cylinder Marine Engine. Block Code Indentification Small V8 Mercruiser Engine Block Code Identification Table For Properly Identifying Your Mercrusier Small V8 Marine Engine. Block Code Indentification Big Block V8 Mercruiser Engine Block Code Identification Table For Properly Identifying Your Mercrusier Big Block V8 Marine Engine. Break In Procedure for Marine Engines Can I run my new engine at full throttle within the 1st hour or do I need to follow a prescribed procedure in breaking the engine in correctly? Rotation of a Marine Engine How do I determine if my engine rotation is Left Hand or Right Hand? Remanufactured Marine Engines How do I select the correct remanufactured marine longblock? Shortblock’s vs Longblock’s Which is the better option a Tags: bobtail marine engines, marine engines, marine longblocks, remanufactured longblocks Buy the products and parts you need... Buy Parts and Products Contact Us 1-405-533-3812 8002 West 6th Stillwater, OK 74074 Business Hours: Mon-Fri 9:00–5:30 sales@perfprotech.com About Us Our Company Our Blog Policies & Terms Sitemap Follow Us Here Google+ Facebook Twitter LinkedIn Youtube The best source for Mercruiser OEM parts, marine engines, boat & engine parts, accessories, boating supplies, tools, & aquatic sporting goods. Copyright © 2021 Performance Product Technologies