VEGE DO15 Remanufactured Long Block Crate Engine — Oldsmobile 307 V8 (5.0L), 1984–1990
Bring your 1984–1990 GM B-body back to life with the VEGE DO15 crate engine — a fully remanufactured Oldsmobile 307 V8 long block built by one of Europe’s most respected engine remanufacturers. This crate engine arrives as a complete long block assembly: remanufactured block, reconditioned cylinder heads, roller camshaft, oil pump and gaskets — ready for your intake, carburetor and accessories. Drop-in replacement for Buick, Cadillac, Oldsmobile and Chevrolet applications. Shipped fast across Europe from NH Race Engine.
Why Choose a VEGE Remanufactured Crate Engine?
Finding a healthy Oldsmobile 307 V8 today usually means gambling on a junkyard pull with unknown history, hidden wear and zero warranty. The VEGE DO15 crate engine eliminates that risk entirely. VEGE’s remanufacturing process begins with a complete teardown of the donor core to individual components. Every part is inspected, measured and cleaned before engineers re-machine the block and cylinder heads to exacting tolerances. The result is an engine assembled from a mix of quality new and precision-remanufactured components — not a patched-up rebuild, but a true remanufacture to OEM or better specification. VEGE official remanufacturing process
VEGE’s green credentials are equally impressive. Wherever possible, major components like blocks and heads are re-engineered and reused rather than scrapped, and every engine passes rigorous quality tests at every stage of assembly before being crated for dispatch worldwide.
Key Features & Benefits
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True Remanufacture, Not a Rebuild: Every DO15 core is disassembled to bare components, crack-tested, machined and measured against OEM tolerances. Worn parts are replaced with new — you receive an engine built to meet or exceed original factory specification.
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Roller Camshaft (1985–1990 Applications): The DO15 covers the roller-cam version of the 307, fitted to 1986–1990 Buick Electra, LeSabre, Regal and Riviera, Cadillac Brougham and Fleetwood, and 1986–1990 Chevy Caprice — smoother running, better durability and modern oiling compared to early non-roller engines.
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Long Block Assembly Included: Cylinder heads, valvetrain and valve covers are installed and torqued to spec. Compared to a bare block, a long block crate engine saves days of machine shop labor and eliminates the risk of incorrect head gasket or torque procedures.
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Drop-In Fitment: Engineered as a direct replacement for the original 307 — bolt on your intake manifold, carburetor, distributor, water pump and accessories from your old engine and go.
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Global Crating & Dispatch: Each engine is vacuum-sealed, treated with corrosion inhibitor and packed in a steel shipping frame or crate for safe transport across Europe.
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Sustainable & Cost-Effective: Re-engineered major components mean a lower price than a new engine and a fraction of the environmental footprint of new casting production.
Vehicle Fitment — DO15 Applications
The VEGE DO15 crate engine covers the 1984–1990 Oldsmobile 307 (5.0L / 307 cu in) V8 in roller-cam configuration. Typical applications include:
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Buick (1985–1990): Electra, LeSabre, Regal, Riviera, Estate Wagon — OHV 16-valve, carbureted
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Cadillac (1986–1990): Brougham, Fleetwood — carbureted V8
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Chevrolet (1986–1990): Caprice, Monte Carlo
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Retrofit Applications: Also suitable for street rods, engine swaps and custom builds using the Oldsmobile small-block V8 platform
[IMPORTANT FITMENT NOTE: DO15 is the roller-cam variant. For 1980–1984 non-roller 307 engines, the corresponding VEGE code is DO06. Verify your camshaft type and casting numbers before ordering — or contact our technical team with your VIN.
Technical Specifications
Part Type: Crate Engine — Long Block Product Line: VEGE Remanufactured Long Block Crate Engines MPN: DO15 Displacement: 5.0L / 307 cu in (5,030 cc) Configuration: V8, 90°, OHV, 16 valves Aspiration: Naturally aspirated, carbureted Camshaft: Roller cam (1985–1990 specification) Cylinder Heads Included: Yes Valve Covers Included: Yes Timing Cover Included: Yes Oil Pump Included: Yes (with gasket set) Intake Manifold Included: No Carburetor Included: No Distributor Included: No Water Pump Included: No Flywheel/Flexplate Included: No Quantity: Sold individually Warranty: VEGE limited warranty (details on request) Origin: Remanufactured in the Netherlands / EU
What’s Included vs. What You Transfer
Included with the DO15 long block: remanufactured block, reconditioned cylinder heads, roller camshaft and valvetrain, valve covers, timing cover, oil pump, head gaskets and sealing set, corrosion-treated crated assembly.
Transfer from your original engine: intake manifold, carburetor or throttle body, distributor and ignition, water pump, harmonic balancer, flexplate or flywheel, oil pan (unless specified), engine mounts, wiring and accessories.
Fitment notes: valley pan gasket not included; SMOG holes located over each exhaust port — relevant for emissions-era installations. Please confirm these details match your application before ordering.
Remanufactured vs. Rebuilt vs. Used — Comparison
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| Feature | VEGE DO15 Remanufactured | Typical Rebuilt | Junkyard Used |
|---|---|---|---|
| Core teardown to components | Yes | Partial | No |
| Machined to OEM tolerances | Yes | Rarely | No |
| New wear parts fitted | Yes | Some | No |
| Quality-tested at each stage | Yes | No | No |
| Warranty | Yes | Limited/None | No |
| Drop-in long block ready | Yes | Varies | No |
Frequently Asked Questions
Is the VEGE DO15 a drop-in replacement for my 307? Yes — the DO15 long block is dimensionally identical to the original Oldsmobile 307. Transfer your intake, carburetor, distributor, water pump and balancer from the old engine and it bolts straight in.
What is the difference between DO15 and DO06? Both are VEGE 307 V8 long blocks. DO15 covers 1985–1990 roller-cam engines; DO06 covers 1980–1984 non-roller engines. Confirm your camshaft type before ordering.
Does the DO15 include the oil pan and intake manifold? No — as a long block it includes heads, valvetrain, timing cover and oil pump. The intake manifold, carburetor, water pump and oil pan transfer from your original engine.
Do I need to return my old engine core? Core policy varies by order type — many VEGE engines are available with no core required. Contact NH Race Engine for current terms.
Can you ship the DO15 to my country in the EU? Yes — NH Race Engine ships crated engines across the Netherlands, Germany, Belgium, France and all EU countries with full insurance and tracking.
Recommended Companion Products
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Engine installation gasket kit & seals
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Motor oil & break-in oil for flat-tappet/roller protection
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Engine mounts & hardware for GM B-body
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Water pump & thermostat — new (recommended at install)
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Intake manifold & carburetor rebuild kits
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Engine stand & hoist rental for DIY installation
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VEGE DO06 — non-roller 307 variant (1980–1984)
Shipping & Delivery
NH Race Engine ships VEGE crate engine long blocks across Europe from our EU warehouse. Engines ship in steel crating on a pallet via insured freight carrier with full tracking.
Estimated delivery: Netherlands 3–5 business days | Germany, Belgium, France 5–7 business days | Rest of EU 7–10 business days
Liftgate delivery available on request. Contact us for a shipping quote to your address.
Order Your VEGE DO15 Crate Engine Today
Don’t gamble on a worn junkyard engine for your Buick, Cadillac or Chevy. The VEGE DO15 crate engine delivers a factory-spec remanufactured 307 V8 long block — roller cam, heads installed, quality-tested and crated for safe delivery. Limited availability on remanufactured cores — secure yours today.
Click “Add to Cart” now or contact our technical team for fitment verification, core policy details and a shipping quote.
Call [PHONE] or email [EMAIL] for expert advice on crate engines.
SKU: VRE-DO15 | MPN: DO15 | Brand: VEGE | Category: Crate Engines / Remanufactured Engines
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