Engine Shop Services
- Home ›
- Engine Shop Services
JS Speed Shop: Building High-Performance Race Cars from Scratch
At JS Speed Shop, we don’t just build race cars; we create legends on wheels. From custom chassis fabrication to fine-tuning engines for the ultimate track performance, our team of experts delivers world-class craftsmanship and innovation. Led by Jay, a master builder with years of hands-on experience, we specialize in building race cars entirely from scratch, pushing the boundaries of speed, power, and performance.
Custom Built Crate Engines
JS Powersports offers custom-built high-performance engines for racing and street applications. Our team combines decades of experience with state-of-the-art technologies to craft engines that deliver power, precision, and performance.

Benefits of a Custom Crate Engine
A fully assembled engine that is built to order and designed to meet specific performance, durability, and compatibility requirements. Unlike mass-produced engines, custom crate engines are tailored to the buyer’s preferences, vehicle specifications, and intended use.
Plug-and-Play Installation: Pre-assembled and often ready to install with minimal adjustments, saving time and effort.
Performance: Designed to outperform stock or standard crate engines by focusing on the customer’s specific power and performance goals.
Reliability: Built to last with high-quality parts and expert craftsmanship.
Versatility: Can be used in a variety of applications, from daily drivers to high-performance race cars.

Key Features of a Custom Crate Engine
- Customization: Built to meet your specifications, such as horsepower, torque, and intended use (e.g., racing, towing, or street performance). Options include varying displacements, cylinder configurations, compression ratios, and fuel systems (carbureted or fuel-injected).
- High-Quality Components: Assembled using premium aftermarket or OEM parts, such as forged pistons, performance camshafts, upgraded cylinder heads, and custom intakes. Application-Specific Design:Tailored to specific vehicle types, including muscle cars, classic cars, trucks, hot rods, or race cars. Can be built for compatibility with specific transmission types, fuel systems, or exhaust setups.
- Assembly by Experts: Assembled and tested by professional engine builders who focus on reliability, power, and precision. Many custom shops use advanced machining and balancing techniques to ensure optimal performance.
- Performance Optimization: engines are dyno tested before shipping, providing performance data such as horsepower and torque curves to the customer.

Common Uses of a Custom Crate Engine
- Restoration Projects: Ideal for classic car restorations where matching modern performance with vintage aesthetics is desired.
- Performance Upgrades: Used to boost the capabilities of muscle cars, street rods, or off-road vehicles.
- Racing: Tailored for specific motorsport applications like drag racing, track racing, or dirt racing.

Chassis Fabrication: The Backbone of Every Race Car
A winning race car starts with a solid foundation, and at JS Speed Shop, we design and fabricate custom chassis tailored to your exact needs. Using advanced welding techniques and lightweight materials, we craft chassis and roll cages that deliver maximum strength and safety without compromising speed.

Rapid Prototyping of Custom Performance Parts
Innovation is at the heart of what we do. Our rapid prototyping services allow us to design and manufacture custom performance auto parts that are optimized for your specific build. Whether it’s precision-machined suspension components or aerodynamic bodywork, we bring your ideas to life with unmatched speed and precision.

Complete Race Car Builds
Jay and the JS Speed Shop team have the expertise to design and build an entire race car from scratch. From the initial concept to final assembly, every detail is engineered for peak performance. With meticulous attention to chassis, engine, wiring, and aesthetics, we create machines that are track-ready and built to win.
Custom Race Engines: Power That Dominates
Our engine shop is where horsepower is born. We build and tune custom race engines designed to deliver maximum performance. Whether it’s a high-revving V8, a turbocharged inline-four, or a diesel powerhouse, we engineer engines that meet the demands of even the most extreme racing conditions.

Precision Tuning and Track-Side Support
At JS Speed Shop, we know that performance isn’t just about the build—it’s about fine-tuning every aspect of the car. Our tuning services include EFI (Electronic Fuel Injection), dyno testing, and track-side adjustments to ensure your car performs flawlessly under real-world conditions.

Custom Wiring Services & Harnesses
Modern race cars demand precision wiring for reliability and performance. We offer custom wiring services tailored to your specific setup, ensuring that every connection, sensor, and module is perfectly installed and tested.

Diesel Performance Parts
In addition to gasoline-powered performance, we specialize in diesel performance enhancements. From high-performance turbochargers to custom exhaust systems, we can unlock the full potential of your diesel-powered vehicle, whether it’s for the track or street.