Mechanical parts
Isuzu 4JB1-T V8 Turbo Diesel Engine
- Bounding box
- 453.1 × 637.0 × 752.8 mm
- Engine
- Precision B-rep
- Parameters
- 44
- Published
- October 18, 2026
Download
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The prompt
Create a complete, realistic, editable 3D model of a custom 5.54L Isuzu 4JB1-T V8 turbo-diesel engine for FreeCAD. Use a 90° V8 layout with 4 cylinders per bank, 93 mm bore, 102 mm stroke, and 106 mm cylinder spacing. Include a custom V8 engine block, crankshaft, 8 pistons, 8 connecting rods, 2 cylinder heads, 2 mechanical diesel injection pumps (one per bank), and 2 turbochargers (one per bank). Reuse original 4JB1-T parts where compatible. Assemble the components into one complete engine, with realistic proportions and visible internal parts. Clearly mark estimated dimensions. Prioritise the engine block and correct V8 layout. Do not create only separate blocks or an exploded parts layout.
Parameters
| Name | Value | Range |
|---|---|---|
| Bore | 93 mm | 60 – 120 |
| Stroke | 102 mm | 80 – 140 |
| Cylinder Spacing | 106 mm | 80 – 150 |
| Cylinders Per Bank | 4 | 3 – 6 |
| Bank Angle | 90 deg | 45 – 120 |
| Deck Height | 271 mm | 200 – 350 |
| Assembly Gap | 0 mm | 0 – 500 |
| Crank Radius | 51 mm | 30 – 80 |
| Block End Margin | 30 mm | 20 – 60 |
| Block Base Height | 120 mm | 80 – 200 |
| Block Base Width | 160 mm | 120 – 250 |
| Bank Width | 120 mm | 80 – 200 |
| Main Journal Diameter | 60 mm | 40 – 90 |
| Rod Journal Diameter | 48 mm | 30 – 70 |
| Counterweight Diameter | 110 mm | 60 – 150 |
| Crankcase Width | 200 mm | 120 – 300 |
| Crankcase Height | 180 mm | 80 – 260 |
| Crankcase Wall Thickness | 20 mm | 10 – 40 |
| Main Bearing Count | 5 | 3 – 7 |
| Piston Clearance | 0.08 mm | 0.01 – 0.5 |
| Compression Height | 52 mm | 30 – 70 |
| Piston Skirt Height | 60 mm | 30 – 90 |
| Bowl Diameter | 50 mm | 20 – 70 |
| Bowl Depth | 12 mm | 5 – 30 |
| Wrist Pin Diameter | 34 mm | 20 – 45 |
| Connecting Rod Length | 168 mm | 120 – 220 |
| Big End Diameter | 60 mm | 40 – 80 |
| Small End Diameter | 42 mm | 25 – 55 |
| Head Height | 90 mm | 50 – 140 |
| Valve Diameter | 35 mm | 20 – 50 |
| Timing Plate Thickness | 20 mm | 10 – 40 |
| Timing Plate Width | 200 mm | 120 – 300 |
| Timing Plate Height | 300 mm | 150 – 450 |
| Manifold Log Diameter | 50 mm | 30 – 80 |
| Manifold Runner Diameter | 38 mm | 20 – 60 |
| Pump Length | 120 mm | 70 – 180 |
| Pump Width | 70 mm | 40 – 120 |
| Pump Height | 100 mm | 60 – 160 |
| Fuel Line Diameter | 6 mm | 2 – 12 |
| Fuel Line Length | 200 mm | 100 – 350 |
| Compressor Diameter | 70 mm | 40 – 100 |
| Turbine Diameter | 60 mm | 40 – 90 |
| Oil Pan Width | 180 mm | 120 – 250 |
| Oil Pan Depth | 80 mm | 40 – 120 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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