OEM-Quality Long Block China Manufacturer and Wholesale Supplier
At WideEngine, we specialize in manufacturing car engine long blocks that meet OEM standards, providing aftermarket repair solutions you can trust. Our long blocks are engineered to deliver the same performance, durability, and reliability as the original engine, helping you restore vehicles to peak operating condition. Whether you are a repair shop, automotive professional, or individual seeking a quality replacement, our long blocks provide a complete engine assembly solution, saving you time and ensuring long-lasting results.
Key Features of Long Block Engines
- Brand New – Every long block is 100% new, never used or remanufactured.
- OEM-Quality – Built to match original engine specifications.
- Complete Assembly – Includes block, heads, crankshaft, camshaft, and internal components.
- Wide Vehicle Coverage – Compatible with cars, trucks, and SUVs.
- Precision Engineered – Strict quality control and balanced assembly for reliable performance.
- Ready-to-Install – Reduces labor and downtime for aftermarket repairs.
WideEngine Long Block Replacement Series
Why Choose WideEngine For Long Blocks
With years of experience, we provide a reliable supply chain that ensures fast and consistent delivery for both professional repair shops and individual customers. Our dedicated support team is always ready to assist with product selection, vehicle compatibility, and technical guidance, while we also offer flexible solutions for bulk orders. At WideEngine, we are committed to helping our customers achieve efficient, trouble-free engine replacements and complete satisfaction with every purchase.
WideEngine Long Blocks in Factory
Engine Brands Available for Long Block Replacement
Brand | Engine Codes |
Hyundai/Kia Gasoline | G3LA, G4FA/G4FC, G4FG, G4FJ, G4FD, G4FL, G4FS, G4LA/G4LC, G4LD, G4NA/G4NB(Old/New Model), G4NC, G4NG (Hybrid), G4NH, G4KA, G4KC, G4KD, G4KE, G4KJ (old model), G4KH (old model), G4KJ/G4KH (New Model), G4KG, G4KF |
Hyundai/Kia Diesel | D4CB, D4BH/4D56/D4BB/D4BF, D4FA, D4FB, D4FC, D4FD, J2, J3, JT, D4EA, D4EB, D4HA, D4HB |
Chery | SQR481FC, SQR484F/VVT, SQR477, SQRFJ16C, SQR4G16, SQRE4T15B, SQRE4G15C, SQRE4T15C, SQRE4G15B, SQR372, SQRWB/WF/WD, QQ472 |
Toyota | 1TR, 2TR (Old/New Model), 2L, 3L, 5L,1AZ, 2AZ,1kD, 2KD, 2RZ, 3RZ,1GR (Old/New Model),1NZ, 2NZ, 4RB2, 4RB3,1TZ, 4Y |
GM | LUJ/A14NET, LDE/F16D4/Z16XER (Old/New Model), 2H0/F18D4/Z18XER (Old/New Model), LLU, B15D2, F16D3, LMU/B12D1, L3G, LFV, 15S4G/15S4U,15S4C,15E4E |
BMW | N20 |
MAXUS | SC25R136.1Q4/1Q5, V80,19D4N,20L4E, SC20M163.Q6A, SC28R143.Q5A, T60, SC20M125.Q6A,15E4E, C35, SC28R150Q6, D20DTR/D22DTR |
Target Market and Customers
WideEngine primarily serves the aftermarket automotive market, focusing on repair shops who need reliable long block replacement for their clients. We also work closely with distributors and wholesalers, offering bulk purchasing options to support their operations. While our focus is B2B, we also cater to DIY enthusiasts by allowing single-unit purchases.
Long Block Packaging and Delivery
FAQ
A long block is a complete engine assembly that includes the engine block, cylinder heads, camshaft(s), crankshaft, pistons, and other essential internal components. It does not usually include accessories like the intake manifold, alternator, or starter motor—these are part of a short block or fully assembled engine. Long blocks are ideal for replacing a worn or damaged engine while saving time and ensuring reliability.
A short block contains the engine block, crankshaft, pistons, and connecting rods, but lacks cylinder heads and valve components. A long block adds the cylinder heads, camshafts, and valve train, making it closer to a complete engine. Choosing a long block reduces installation complexity and ensures a more complete replacement, especially for engines with head damage or wear.
A long block replacement is recommended when:
- The engine suffers major internal damage, such as a cracked block or head.
- Rebuilding the engine is uneconomical compared to replacement.
- You want a reliable, factory-quality rebuild without sourcing individual components.
- It is often more cost-effective than replacing the entire vehicle engine or attempting a full custom rebuild.
Compatibility depends on the engine type, year, and manufacturer specifications. Always check the engine code, displacement, and mounting points to ensure a correct fit. Authorized suppliers can provide guidance to match your vehicle accurately.
- Time savings – fewer components to install than building an engine from scratch.
- Reliability – professionally assembled with factory or OEM-grade parts.
- Cost-effectiveness – often cheaper than a full engine replacement or complete rebuild.
- Warranty protection – many long blocks come with limited warranties for peace of mind.
Yes, most long block replacements allow reuse of your existing accessories, such as:
- Intake and exhaust manifolds
- Fuel injection systems
- Alternators, starters, and AC compressors
This reduces the overall replacement cost and simplifies installation. However, damaged or worn accessories should be replaced to maintain performance.
- Identify your engine code and vehicle specifications.
- Confirm compatibility with your accessories and mounting points.
- Choose a supplier offering OEM-quality parts.
- Check warranty coverage and customer reviews for reliability.
Working with an expert supplier ensures you get the best value and performance.
