Enclosures and housings
Exploded Isuzu 4JB1-T Inspired V8 Turbo-Diesel Engine
- Bounding box
- 8130.1 × 672.0 × 502.7 mm
- Engine
- Precision B-rep
- Parameters
- 44
- Published
- October 18, 2026
Download
Free to download and use. See the terms.
The prompt
Create a detailed 3D CAD model of a custom 5.54L Isuzu 4JB1-T-inspired V8 turbo-diesel engine for FreeCAD. **Engine specifications:** - 90° V8, four cylinders per bank. - Bore: 93 mm target. - Stroke: 102 mm target. - Displacement: approximately 5,542 cc. - Cylinder spacing: 106 mm (measured). - Connecting rods: 168 mm centre-to-centre (measured). - Piston compression height: 52 mm (measured). - Wrist pin: 34 mm nominal diameter. - Crank radius: 51 mm. - Two mechanical diesel injection pumps, one per bank, feeding four injectors each. - Two standard-style 4JB1-T turbochargers, one per bank. **Design requirements:** Reuse compatible parts from two original 4JB1-T donor engines, including pistons, heads, valves, pumps and turbos where feasible. Create a custom V8 block, crankshaft, crankcase, bearing supports, manifolds and timing drive. Include eight pistons, connecting rods, a cross-plane crankshaft concept, oil and coolant passages, twin exhaust manifolds, fuel lines and turbo plumbing. Build a modular, editable CAD assembly with an exploded view, cutaway view and dimensioned drawings. Mark unknown dimensions as unverified. Treat the 271 mm crank-centre-to-piston-crown reference as preliminary, not the final block deck height. Do not invent dimensions or claim the design is ready for manufacture. **Output:** editable 3D assembly suitable for further development in FreeCAD, with STEP export if supported. Prioritise realistic geometry, donor-part compatibility and engineering feasibility.
Parameters
| Name | Value | Range |
|---|---|---|
| Bore | 93 mm | 60 – 130 |
| Stroke | 102 mm | 60 – 150 |
| Cylinder Spacing | 106 mm | 80 – 160 |
| Cylinders per Bank | 4 count | 2 – 6 |
| Bank Angle | 90 deg | 45 – 120 |
| Deck Height (preliminary) | 271 mm | 200 – 400 |
| Crank Radius | 51 mm | 30 – 75 |
| Connecting Rod Length | 168 mm | 120 – 220 |
| Piston Compression Height | 52 mm | 30 – 80 |
| Wrist Pin Diameter | 34 mm | 18 – 50 |
| Block End Margin | 65 mm | 20 – 120 |
| Block Base Height | 100 mm | 50 – 180 |
| Block Base Width | 200 mm | 120 – 320 |
| Cylinder Bank Width | 130 mm | 90 – 220 |
| Main Journal Diameter | 76 mm | 40 – 110 |
| Rod Journal Diameter | 60 mm | 30 – 95 |
| Counterweight Diameter | 150 mm | 90 – 230 |
| Crankcase Width | 240 mm | 140 – 360 |
| Crankcase Height | 160 mm | 80 – 260 |
| Crankcase Wall Thickness | 12 mm | 6 – 30 |
| Number of Main Bearings | 5 count | 3 – 7 |
| Piston-to-Bore Clearance | 1 mm | 0.2 – 3 |
| Piston Skirt Height | 40 mm | 15 – 80 |
| Combustion Bowl Diameter | 52 mm | 20 – 80 |
| Combustion Bowl Depth | 16 mm | 4 – 35 |
| Big End Diameter | 84 mm | 50 – 130 |
| Small End Diameter | 48 mm | 30 – 80 |
| Cylinder Head Height | 100 mm | 60 – 180 |
| Valve Stem Diameter | 14 mm | 6 – 25 |
| Timing Plate Thickness | 20 mm | 6 – 50 |
| Timing Plate Width | 340 mm | 150 – 500 |
| Timing Plate Height | 340 mm | 150 – 500 |
| Manifold Log Diameter | 54 mm | 25 – 100 |
| Manifold Runner Diameter | 34 mm | 15 – 70 |
| Injection Pump Length | 120 mm | 60 – 220 |
| Injection Pump Width | 90 mm | 40 – 180 |
| Injection Pump Height | 140 mm | 60 – 240 |
| Fuel Line Diameter | 6 mm | 2 – 16 |
| Fuel Line Length | 180 mm | 60 – 320 |
| Compressor Housing Diameter | 140 mm | 70 – 240 |
| Turbine Housing Diameter | 120 mm | 60 – 220 |
| Oil Pan Width | 240 mm | 120 – 360 |
| Oil Pan Depth | 110 mm | 50 – 220 |
| Exploded Layout Gap | 700 mm | 620 – 1500 |
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.
More models
Browse the full gallery →Cylindrical Stainless Steel Basket with Folding Handles
Design a cylindrical 304 stainless steel basket with an outer diameter of 200 mm and height of 250 mm. The basket has solid side walls with no perforations. The bottom plate contai
Immersion Cooling Enclosure
Design a sealed high-pressure dielectric immersion cooling enclosure for cylindrical battery cells. Internal cavity dimensions: 540mm length, 360mm width, 160mm height with 6mm wal
Simple BWB with Propulsion Tube
Prompt: "A simple, solid Blended Wing Body (BWB) flying wing. Dimensions: wingspan 6.5 meters, center chord 1.53 meters, root thickness 35 centimeters, tapering to 15 centimeters a
Engranaje recto 50 dientes, módulo 2
Engranaje recto de 50 dientes, diámetro exterior 104 mm, diámetro de raíz 95 mm, espesor 10 mm y ángulo de presión 20°. Crear como sólido 3D con un agujero central de 8.2 mm de diá
G+1 Party Hall Structural Shell
G+1 Party Hall – AutoCAD Design Prompt Design a G+1 RCC-framed Party Hall in AutoCAD with detailed Ground Floor Plan, First Floor Plan, and all-side elevations (front, rear, left
Rope Winch Drum
Create a fully parametric CAD model of a rope winch drum for a construction hoist. Requirements: - Output format: STEP (.step or .stp) - Units: millimeters - Solid body only (no