1981 International S1724 V345 5.7 International Remanufactured Long Block Engine
GAS • Dyno Tested • Warranty Included

About This International V345 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 1981 International S1724? US Engine Production offers premium remanufactured International V345 long block engines that meet or exceed OEM specifications. Our remanufactured long blocks are completely disassembled, cleaned, inspected, and rebuilt using new components where necessary.
Every remanufactured gas long block undergoes rigorous dynamometer testing to ensure optimal performance. With over 40 years of experience and a database of 473,000+ engines, we're America's trusted source for remanufactured long block engines.
Common International V345 Problems We Address
Our remanufacturing process specifically addresses these known issues with International V345 engines:
- EGR cooler failures
- Injector problems
- Turbocharger issues
- Oil cooler failures
- High-pressure oil system leaks
- Fuel system problems
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
International Vehicle Compatibility
International V345 engines are commonly found in these International vehicles:
- LT Series highway trucks
- HX Series vocational trucks
- MV Series medium-duty trucks
- CV Series commercial trucks
- DuraStar delivery trucks
- WorkStar dump trucks
What's Included With Your Remanufactured Long Block
Complete long block assembly with all new/remanufactured components
Core Components
- Remanufactured Engine Block
Cleaned, inspected, and machined to OEM specifications
- New Pistons & Rings
Premium quality pistons with new ring sets
- Reground Crankshaft
Precision ground to factory tolerances
- New Main Bearings
OEM-spec main bearings for proper clearance
- New Rod Bearings
Connecting rod bearings replaced
- New Camshaft
New or reground camshaft (where applicable)
Timing Components
- New Timing Chain/Belt
Complete timing set included
- New Timing Gears/Sprockets
All timing components replaced
- New Tensioners & Guides
Timing tensioners and guides included
Valvetrain
- New Lifters/Tappets
Hydraulic or solid lifters replaced
- Reconditioned Cylinder Head(s)
Heads resurfaced and pressure tested
- New Valve Seals
All valve stem seals replaced
Seals & Lubrication
- New Oil Pump
Oil pump replaced for proper lubrication
- New Gasket Set
Complete gasket set included
- New Front & Rear Seals
All main seals replaced
- New Freeze Plugs
Core plugs replaced
Frequently Asked Questions: 1981 International S1724 International V345 Remanufactured Engine
A remanufactured International V345 5.7L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 1981 International S1724. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a International V345 remanufactured long block for your 1981 International S1724, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing with free nationwide shipping.
What Our Customers Say
Trusted by thousands of customers nationwide
"Fast shipping and the engine was exactly as described. Installation went smoothly and it's been running great for 6 months now."
"Great experience from start to finish. The price was competitive and the quality exceeded my expectations. Will definitely buy again."
"Needed an engine fast for my work truck. They had it in stock and shipped same day. Engine is running perfectly. Highly recommend!"
Warranty & Quality Assurance
Core Return Required: A refundable core deposit is required. We provide a prepaid shipping label for your old engine core return.
Call us for the best price on this International V345 remanufactured long block. Prices may vary based on configuration.
Email: [email protected]
Why US Engine Production?
- 40+ years of experience
- 473,000+ engines in database
- Nationwide shipping
- Expert technical support
- Quality guaranteed
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More International S1724 Engines
Other model years available for the International S1724
1984 International S1724
International V392 6.4L
1984 International S1724
International V345 5.7L
1980 International S1724
International V345 5.7L
1983 International S1724
International V392 6.4L
1980 International S1724
International V392 6.4L
1982 International S1724
International V345 5.7L
1980 International S1724
International MV404 6.6L
Vehicles with International V345 Engine
This same engine is also available for these vehicles
1981 International S1823
V345 5.7L GAS
1982 International Cargostar
V345 5.7L GAS
1980 International S1823
V345 5.7L GAS
1982 International S1723
V345 5.7L GAS
1983 International Cargostar
V345 5.7L GAS
1980 International S1624
V345 5.7L GAS
1982 International S1624
V345 5.7L GAS
1985 International S1723
V345 5.7L GAS
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2005 International 4300
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International 7.3L DIESEL
1992 Ford F-350
International 7.3L DIESEL
2001 Ford F-250 Super Duty
International 7.3L DIESEL
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Buy International V345 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured International long block engines. Our V345 remanufactured long blocks for International vehicles include all new internal components including pistons, rings, bearings, timing components, and gaskets. Every long block is dyno tested and backed by our 1-year, unlimited mileage warranty. Whether you need a replacement long block engine for your 1981 International S1724or any other application, our team of experts is ready to help. Call us at (631) 991-7700 or email [email protected] for a free quote today.
