1. Engine Bay Clearance: The biggest hurdle is the S10's relatively small engine bay. A big-block is considerably larger and taller than the stock V6 or V8. You'll likely need to:
* Tubular Frame: Consider a custom tubular front subframe to accommodate the engine and provide necessary support. This is probably the most critical modification.
* Firewall Modifications: The firewall will almost certainly need to be significantly modified or replaced to clear the engine and its accessories.
* Inner Fenders: The inner fenders will need major cutting and modification to make room.
2. Transmission and Drivetrain:
* Transmission: You'll need a transmission that can handle the big-block's torque. A heavy-duty automatic (like a TH400 or 700R4) or a manual transmission (like a TH350) would be suitable, but would likely also require custom mounts and potentially a driveshaft modification.
* Driveshaft: The stock driveshaft will be too short; you'll need a custom driveshaft built to the correct length.
* Rear Axle: The stock rear axle might not be strong enough to handle the power; an upgrade might be necessary.
3. Suspension and Steering:
* Suspension: The increased weight of the big-block will severely stress the stock suspension. Upgrades to springs, shocks, and possibly control arms are essential. Consider a custom suspension setup to optimize weight distribution and handling.
* Steering: The added weight might affect steering response; upgrades or adjustments might be needed.
4. Exhaust System:
* Headers: You'll need custom headers to fit the engine and the S10's chassis.
* Exhaust Pipes: A custom exhaust system is required.
5. Cooling System:
* Radiator: A larger radiator with increased cooling capacity is vital to prevent overheating.
* Fans: High-capacity electric fans might be needed.
6. Wiring and Electronics:
* Wiring Harness: The stock wiring harness won't work; a custom harness will likely be needed. This is a complex job requiring significant electrical knowledge.
* Engine Management: You'll need a suitable engine management system (such as a carburetor, fuel injection, or aftermarket ECU) to control the big-block.
7. Other Considerations:
* Brakes: Upgrading the brakes is strongly recommended to handle the increased weight and power.
* Body Modifications: You might need to modify or reinforce the body to handle the extra stress.
* Professional Help: Unless you have extensive experience in fabrication, welding, and engine swaps, this project is best left to experienced professionals.
In short: This isn't a weekend project. It's a major undertaking that requires significant mechanical skills, specialized tools, and a considerable budget. It's much more cost-effective and less time-consuming to choose a vehicle already designed for a big-block engine. If you're determined to do this, thorough planning, research, and a detailed parts list are crucial for success. Consider consulting with experienced engine swap specialists.
