LS7 Crate Engines Valve Issues: Causes, Symptoms, and Solutions by Chad Golen March 26, 2026 0 Key Takeaways: Premature valve guide wear, often due to factory machining defects, is the leading cause of LS7 crate engine valve failures and can occur even in low-mileage engines. Early detection through systematic diagnostics is critical to preventing catastrophic engine damage. Upgrading to precision-machined cylinder heads with quality valve guides and disciplined maintenance practices significantly … Read More
Understanding the Jeep 4.0L Stroker Torque Curve for Trail Performance by Chad Golen March 25, 2026 0 Key Takeaways: A Jeep 4.0 stroker engine delivers a broader, flatter torque curve, providing significantly more low-end power and throttle control for technical off-road terrain. Proper component selection and expert dyno tuning ensure that stroker builds maintain 88-95% of peak torque from as low as 1,800 rpm, reducing the need for frequent gear changes and … Read More
What’s the Difference Between LT1 and LT4 Crate Engines? by Chad Golen March 24, 2026 0 Key Takeaways: LT1 and LT4 crate engines share a Gen V 6.2L foundation but differ dramatically in power delivery: the LT1 offers naturally aspirated, linear response ideal for street and balanced track use, while the LT4 delivers instant, supercharged torque for high-output builds. The LT4’s factory-forged internals, integrated supercharger, and enhanced cooling make it the … Read More
LSX Engine: The Ultimate Guide for Street Performance Builds by Chad Golen March 23, 2026 0 Key Takeaways: The LSX engine block provides exceptional strength and durability, making it ideal for high-horsepower street builds that demand both reliability and performance. Compared to standard LS blocks, the LSX offers significantly higher power ceilings and operational headroom, ensuring cooler, more relaxed operation even in daily-driven vehicles. Golen Engine Service specializes in custom LSX … Read More
Is the Jeep 4.0 Inline 6 a Good Engine? All The Answers You Need by Chad Golen March 22, 2026 0 Key Takeaways: The Jeep 4.0 inline-six engine is renowned for its exceptional reliability and longevity, often exceeding 200,000–300,000 miles with basic maintenance. Common issues are well-documented and easily addressed with straightforward repairs or upgrades. Upgrading to a 4.6L stroker crate engine from Golen Engine Service offers a significant boost in torque and power. Ask any … Read More
Understanding Jeep 4.0 Stroker Dyno Results by Chad Golen March 21, 2026 0 Key Takeaways: Stroker builds deliver 80+ more horsepower and 60+ lb-ft more torque than stock, with the biggest gains in the 1,500-4,000 rpm range where you actually drive. The broad, flat torque curve matters more than peak numbers—it’s what reduces downshifts and improves throttle response on trails. Professional dyno break-in validates power output and ensures … Read More
5.3 Chevy Engine: The Ultimate Guide to Performance Upgrades by Chad Golen March 20, 2026 0 Key Takeaways: The 5.3 Chevy LS engine offers significant performance potential with the right upgrades, while maintaining daily drivability and reliability. Addressing common issues such as AFM lifter failures and timing chain wear is crucial to ensuring long-term reliability, especially when increasing power output. Professionally built LSx crate engines from Golen Engine Service provide a … Read More
Jeep Wagoneer Engine Options: A Complete Guide for Off-Roaders and Restorers by Chad Golen March 19, 2026 0 Key Takeaways: Understand the evolution of Jeep Wagoneer engines to make informed restoration or upgrade decisions. Bolt-in AMC V8s and 4.6L stroker engines offer the best balance of increased torque, reliability, and installation simplicity for off-road and restoration projects. Proper planning for emissions compliance, cooling, and supporting upgrades ensures your engine swap delivers lasting performance … Read More
What Is a Dyno Test? A Beginner’s Guide to Engine Performance by Chad Golen February 22, 2026 0 Key Takeaways: A dyno test provides precise, data-driven measurements of your engine’s horsepower, torque, and key performance parameters—eliminating guesswork and enabling smarter modifications. Professional dyno sessions are essential for safe, reliable tuning, ensuring that custom or upgraded engines run efficiently and deliver consistent power without risking engine damage. Comprehensive dyno testing and tuning, especially for … Read More
Choosing the Right Compression Ratio for Your Jeep 4.0 Stroker by Chad Golen February 21, 2026 0 Key Takeaways: Compression ratio determines torque output and fuel requirements—8.8:1 to 9.6:1 covers most builds from overlanding to performance. Dynamic compression and quench height matter as much as static ratio for preventing detonation on pump gas. Conservative ratios with proper engineering deliver reliable power where premium fuel isn’t always available. The difference between a sluggish … Read More