Your engine is done. Spun a bearing, dropped a valve, hydrolocked, or just wore out after 250,000 miles of honest work. Whatever killed it, you’re looking at a replacement. Here’s what it actually costs, what your options are, and how to get the best value.
Quick Answer
For most GM vehicles in 2026:
- The engine alone: $1,500–$4,500 depending on type and condition
- Labor to install: $1,000–$2,500 at a shop
- Total installed cost: $2,500–$7,000+
The price swings wildly based on three things: what engine you need, whether you buy used/remanufactured/new, and who does the labor. A remanufactured 5.3 Vortec long block for a Silverado is a different planet from a new LS3 crate engine for a Camaro build.
Browse engines at Bishop Car Parts →
Cost Breakdown by Engine Type
Common GM Engines — Price Ranges
| Engine | Common Applications | Used | Remanufactured | New/Crate |
| 5.3L Vortec (Gen III/IV) | Silverado 1500, Tahoe, Suburban | $800–$1,500 | $2,000–$3,500 | $4,000–$6,000 |
| 6.0L Vortec | Silverado 2500/3500, Express Van | $1,000–$2,000 | $2,500–$4,000 | $4,500–$7,000 |
| Chevy 350 SBC | Classic trucks, hot rods, restorations | $500–$1,200 | $1,800–$3,000 | $3,500–$5,500 |
| 4.8L Vortec | Silverado 1500, Sierra 1500 | $700–$1,200 | $1,800–$2,800 | Limited availability |
| LS3 6.2L | Camaro SS, Corvette | $2,000–$3,500 | $3,500–$5,000 | $6,500–$8,500 |
4-Cylinder vs. V6 vs. V8
Smaller engines cost less — fewer components, lighter shipping, faster labor. But the V8 market is where GM parts availability shines. The 5.3 Vortec and Chevy 350 have been produced in such massive quantities that core supply keeps remanufactured prices reasonable. Some V6 and 4-cylinder GM engines are actually harder to source remanufactured because there’s less rebuilder volume.
Car Engines vs. Truck Engines
Truck engines tend to cost slightly more because they’re physically larger, heavier to ship (freight vs. ground), and the labor to pull and reinstall them involves more disassembly — radiator supports, fan shrouds, exhaust crossovers, and sometimes the cab itself on certain HD trucks.
Why GM Engines Tend to Be More Affordable
GM built millions of small block V8s. The Chevy 350 has been in production in various forms since 1967. The 5.3 Vortec went into every full-size truck and SUV from 1999 onward. That enormous production volume means cores are plentiful, parts are standardized, and rebuilders have the process dialed. A remanufactured 5.3 costs less than a comparable Ford 5.4 or Dodge 5.7 Hemi because the supply chain is deeper.
Used vs. Remanufactured vs. Crate Engine
| Used | Remanufactured | Crate (New) | |
| What you get | Pulled from a donor vehicle, sold as-is | Fully disassembled, inspected, machined, reassembled with new wear components | Brand new from GM or aftermarket, zero miles |
| Warranty | 30–90 days (if any) | 1–3 years, typically parts + some labor | 2–3+ years |
| Price range | $500–$2,000 | $1,800–$4,500 | $3,500–$8,500 |
| Risk | High — unknown maintenance history, possible hidden damage | Low — rebuilt to spec and tested | Lowest — brand new |
| Best for | Tight budget, low-value vehicle, temporary fix | Most buyers — best balance of cost, reliability, and warranty | Builds, restorations, or high-value vehicles where new matters |
Used engines are a gamble. That “$800 5.3” from a junkyard might have 200,000 miles of neglected oil changes, a cracked cylinder, or AFM lifter damage you won’t discover until it’s installed and running. You’re paying labor to install an unknown.
Remanufactured engines are the sweet spot for most buyers. Everything that wears — bearings, rings, gaskets, timing components — gets replaced. The block and heads are cleaned, inspected, and machined. You get a warranty and a known starting point.
Crate engines make sense when you’re building something special or the vehicle is worth the premium. For a daily driver truck that needs to run reliably for the next 150,000 miles, remanufactured gets you there at half the cost.
Long Block vs. Short Block — Which Do You Need?
- Long block = block + crankshaft + pistons + rods + camshaft + heads + valve train. You bolt on your intake manifold, exhaust manifolds, and accessories (alternator, power steering, A/C compressor) and go.
- Short block = block + crankshaft + pistons + rods. You supply the heads, camshaft, timing set, intake, and everything else.
Most replacement buyers want a long block — it’s closer to a drop-in solution. Short blocks are for builders who want to run their own heads, cam, and valvetrain setup.
How to Save on Engine Replacement
Buy the engine yourself. Many shops mark up parts 20–40%. Buying a remanufactured long block directly and bringing it to the shop for installation can save $500–$1,000 or more. Most shops will install a customer-supplied engine — just confirm beforehand.
Understand core charges. You’ll typically pay a $200–$500 core deposit that gets refunded when you send your old engine back. The core needs to be complete (block, heads, crank) and not catastrophically damaged. Don’t let the core sit around — send it back promptly to get your refund.
Compare warranty terms, not just price. A $2,200 engine with a 3-year warranty is a better deal than a $1,800 engine with 90 days of coverage. If the cheaper engine fails at month 4, you’re buying a second engine and paying labor again.
Where to Buy a Replacement Engine
Bishop Car Parts has carried remanufactured GM long block engines since 1948. Quality-checked, warrantied, and ready to ship.
Browse remanufactured GM engines at Bishop Car Parts →
FAQ
Is it worth replacing an engine or should I buy a new car? Rule of thumb: if the rest of the vehicle is solid (good body, decent transmission, no major rust), an engine replacement is almost always cheaper than a new vehicle. A $3,000 engine replacement on a truck that’s worth $12,000–$15,000 is a no-brainer. On a vehicle worth $3,000, it’s a harder call.
How long does a remanufactured engine last? With proper maintenance, a remanufactured engine should last 150,000–200,000+ miles — essentially a second life for the vehicle. Many remanufactured engines outlast the original because known factory weak points get corrected during the rebuild.
What’s included in a long block engine? A long block typically includes the block, crankshaft, pistons, connecting rods, camshaft, timing set, cylinder heads, valves, and valve springs. You supply the intake manifold, exhaust manifolds, and external accessories (alternator, water pump, power steering pump, A/C compressor). Some sellers include additional components — always check what’s in the box.
