ARP 04+ GM CA625+ 12pt Head Stud Kit - 234-4314

Get the best deals and FAST shipping on ARP Performance Parts at Fidanza Performance! 

About ARP-

They say that to be successful you must identify a need and satisfy it. Back the early 1970s, racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.

At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener making experience for a leading aerospace subcontractor and founded ARP (Automotive Racing Products).

In the ensuing years, the firm has grown from what was literally a backyard garage workshop into a highly diversified manufacturer with seven operational entities in Southern California with a combined area in excess of 200,000 square feet. These include forging, heat-treating, machining, quality control finishing and packaging/warehousing facilities in Santa Paula and Ventura, California.

There is even a unique racing-themed restaurant at the main Santa Paula facility - called “ Hozy’s Grill” - which is open to the public.

Today, ARP’s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.

About Fidanza Performance-

Fidanza Performance (founded 1997) is the US based designer and manufacturer of the highest quality lightweight aluminum flywheels, precision adjustable cam gears and high-performance clutches in the world. With almost 20 years in the performance automotive market, Fidanza is still the best-known and most respected manufacturer of performance and racing flywheels around. With product offerings ranging from European performance, to hot Asian imports, or vintage racecars to modern day muscle cars, we’ve got you covered. Our company is recognized the world over as the premier choice for quality driveline parts and we want you to experience why.

Fidanza Performance had its origins in racing. Our original owner, Lou Fidanza, was the designer and builder of the famous #19 Grand Tourismo Jaguar that chocked up 11 consecutive SCCA national wins and went on to defeat Paul Newman’s factory backed Nissan 280ZX in the 1980 SCCA National Championships. That experience in building championship level cars led Lou to designing and manufacturing many of his own specialty parts, including aluminum flywheels. Starting with Jaguars, Lou’s many friends in the racing world came looking for that same expertise for their cars and soon Fidanza Engineering was born. Since its inception, Fidanza has engineered, manufactured and sold tens of thousands of flywheels around the world. Domestic, import, European to Asian, we’ve done them all. We’ve also participated in a myriad of events around the world and even been featured in popular video games like GRID, GRID II and DIRT just to name a few.

Over the years, our customers have grown to rely on our products, so when requests came in for us to provide them with other critical components, we put our expertise to work again to offer our customers top of the line parts like our Adjustable Cam gears and V-Series performance clutch kits for today’s performance automobiles too. Check out the rest of our website to find all the information you need to get the right Fidanza Performance parts for your favorite ride!