ARP Shop Tools
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When ARP (Automotive Racing Products) entered the fastener industry in 1968, they quickly recognized that even the world's strongest bolts and studs were only as good as the tools used to install them. ARP has devoted an extensive amount of resources on developing a line of products to aid in efficiently and accurately assembling engines. This commitment to precision has made their shop tools essential equipment for professional engine builders and serious enthusiasts who demand accurate, repeatable results with every build.
Ultra-Torque Assembly Lubricant
The cornerstone of ARP's shop tools lineup is their patented Ultra-Torque fastener assembly lubricant. ARP Ultra-Torque fastener assembly lubricant delivers 95-100 percent of the desired preload on the first "pull" of a torque wrench, eliminating the inconsistent friction properties that plague conventional oils and greases. This specialized formula ensures that torque specifications translate directly into proper bolt preload—critical for preventing both under-torqued failures and over-torqued fastener damage.
Precision Measurement Tools
Rod bolt stretch gauges represent another essential tool in the ARP catalog, providing the most accurate method for verifying proper fastener preload. Since all fasteners act like springs that stretch under load, measuring that stretch gives engine builders direct confirmation that connecting rod bolts have achieved the correct clamping force—far more reliable than torque values alone. Thread cleaning chasers are also available in popular SAE and metric sizes, designed not to cut threads but to remove debris and restore thread integrity before critical fastener installation.
Engine Assembly Tools
ARP's shop tool selection extends to specialized installation equipment that makes engine assembly faster and more accurate. Ring compressors and ring squaring tools ensure proper piston ring installation and gap positioning, while rod vises facilitate off-engine torquing and clearance verification. Oil pump primer kits provide essential pre-lubrication before initial engine startup, preventing dry-start damage to freshly assembled components.
Why Serious Builders Choose ARP Tools
ARP has conducted extensive testing at NHRA races and discovered that racers were relying on torque wrenches that were off by 30-40 percent, highlighting why proper tools and techniques matter so much in engine assembly. Every ARP shop tool reflects the same aerospace-grade engineering principles and quality control standards that made their fasteners legendary in professional motorsports. Whether you're building a street engine or a championship-winning race motor, ARP's specialized tools help ensure that precision fasteners receive the precision installation they deserve.