Precision Motorwerks

Where Precision Creates Performance


office (714) 879-9072
fax (714) 526-6002


Whether your pride and joy is a complete custom ground up track car or just the daily driver in for scheduled Porsche Service - rest assured your car will receive the same high level of care and attention it deserves.

Factory Service - Performed to exacting Porsche specifications at reasonable rates

Custom Engine Building - From a 356 to a GT3 RSR, we can build a motor that fits your needs perfectly. We have perfected the 928 6.5L "Stroker" - a 104mm bore with Nicom coating, Carillo rods, custom forged pistons and a Moldex crank built to our specs. Add our head porting and revalving services and you can expect nearly a 150% HP increase that's reliable, clean and fun to drive. Our 911 motor work is beyond compare, and is used in club racing around the country.


Custom Suspension Work
- Corner Balancing, Alignments, Brake Upgrades, Race Prep, Tuning for whatever needs you may have.

Custom Fabrication - Complete Machine shop on premises. If it doesn't exist, we can make it from a variety of materials.

Expert Diagnostics - Got an issue nobody else can figure out? Give us a try. After 42 years of servicing Porsches, we've got some insights many may not have. And our in house chassis dyno helps diagnose and tune even the most fickle of issues.

PCA Inspection Station - We will insure your club racer is properly prepped and meets all club racing rules so you don't have to worry about the dreaded Black Flag!