Our Story & Vision
AutoCross LLC was founded on a commitment to uncompromising quality, automotive passion, and mobile convenience. Based in Southern California, we specialize in high-performance General Motors LS engine platforms, advanced electrical diagnostics, and precision mechanical repairs delivered directly to our clients.
What started as a dedication to hands-on mechanical builds has grown into a trusted mobile service and performance operation. We believe that true craftsmanship is built over time—guided by the motto Built Not Rushed.
Family & Craftsmanship
At the heart of AutoCross LLC is family legacy and generational passion for the garage. Every engine swap, diagnostic session, and vehicle service is approached with the care and precision we would demand for our own families.
■ Mobile Excellence • Southern California
Diagnostics First
We believe in accurate electrical and mechanical troubleshooting before turning a single wrench, saving you time and money.
LS Specialists
From stock rebuilds to custom performance engine swaps and tuning support, the LS platform is our specialty.
Built Not Rushed
Quality work cannot be hurried. We take pride in meticulous attention to detail on every single job.