The Porsche 996 generation often suffers from catastrophic engine failures due to its infamous IMS bearing issue. While a factory engine replacement is exorbitantly expensive, a unique solution has emerged: the Porsche 911 Ls Swap. Renegade Hybrids, a company known for its V8 Porsche conversions, has perfected transplanting the heart of a Chevrolet Corvette into the rear of a 911. This article explores the process and results of this fascinating automotive alchemy.
Renegade Hybrids utilizes GM’s LS-series V8 engine, specifically the LS3 crate engine, for this conversion. Initially designed for the street rod market to meet modern emission standards, the LS3 offers a powerful and reliable alternative to the fragile Porsche flat-six. The “E-Rod” package, which includes a wiring harness, electronic control module, catalytic converters, and oxygen sensors, simplifies the integration process while ensuring environmental compliance.
Why the LS3? Power, Reliability, and Cost
The LS3 provides compelling advantages for a Porsche 911 LS swap. It boasts more displacement and horsepower than the original engine, while weighing less and costing significantly less than a factory replacement. The aluminum block LS3 delivers 430 horsepower from its 6.2-liter displacement. For those seeking even more power, the 505-horsepower LS7 offers a compelling upgrade path.
Renegade Hybrids founder Scott Mann, a veteran of Porsche V8 swaps, recognized the LS engine’s potential. Minimal modifications are required to fit the LS3 into the 911’s engine bay. A custom adapter kit, flywheel, and clutch are necessary to mate the V8 to the Porsche transaxle. Subtle adjustments, like a custom chip for tachometer compatibility, further refine the integration.
Real-World Application: Sam Korper’s Daily Driver
Sam Korper, a car enthusiast with extensive engine swap experience, partnered with Renegade Hybrids to bring the Porsche 911 LS swap to life. He chose an all-wheel-drive 996 C4 as the recipient for the LS3 transplant, intending to use the car for daily driving. The inherent liquid-cooling of the 996 simplified the conversion process, eliminating the need for extensive custom cooling solutions.
Cooling and Accessory Modifications
While the 996’s existing cooling system proved advantageous, Renegade Hybrids implemented several enhancements. The stock water pump was replaced with a Meziere Enterprises electric unit with an integrated thermostat, mounted near the transaxle. This modification required only two new fittings to connect to the Porsche cooling system. Similarly, an electric power steering pump was installed in the front luggage compartment, cleaning up the engine bay and allowing for a flat mounting plate that utilizes the factory engine mounts.
The Result: A Unique Driving Experience
The completed Porsche 911 LS swap weighs in at 3260 pounds, comparable to a C5 Corvette. This unique combination delivers the exclusivity of a Porsche with the robust power of an American V8. The all-wheel-drive system provides exceptional grip, resulting in an exhilarating driving experience that blends German engineering with American muscle. The Porsche 911 LS swap offers a compelling solution for owners seeking a powerful, reliable, and cost-effective alternative to a factory engine replacement.
