ARP 1x Connecting Rod Fastener Bolt, 3/8″ x 1.600″, ARP2000

This is a single ARP connecting rod fastener/rod bolt manufactured to ARP2000 standard. It measures 3/8″ x 1.600″.

ARP uprated connecting rods are used in a variety of applications from rebuilt stock motors to modified powerplants used in track, marine and drag racing engines. These bolts provide a reliability and performance standard that exceeds OEM and most aftermarket products.

This item is sold as a single bolt only – each con-rod requires 2 bolts. Please specify total quantity required when ordering. This does not fit with OEM con-rods.

Overview

• Description: Connecting Rod Fastener Bolt
• Material Grade: ARP2000
• Size: 3/8″ x 1.600″
• Quantity: x1 / SINGLE BOLT ONLY
• Part Number: AR8900
• Part Cross-Ref: 4AJ1.600-2SU
• Supplier: ARP

At A Glance

• Thread Size: 3/8″
• Under Head Length (UHL): 1.600″
• Thread Length: 0.600″
• Grip Length: 0.145″
• Head Height: 0.388″
• Socket Size: 7/16 / 12pt
• Collar Diameter: 0.555″
• Stretch: 0.0055″-0.0060″
• Torque: 55 ft lbs / 75 Nm

ARP Connecting Rod Bolt Material Overview

8740 CHROME MOLY: 8740 chrome moly is seen as a good tough steel, with adequate fatigue properties for most racing applications, only if the threads are rolled after heat-treatment, as is ARP’s standard procedure. Chrome moly can be heat-treated to deliver tensile strengths be tween 180,000 and 200,000 psi.

ARP2000: ARP2000 is an steel alloy that can be safely heat treated to a higher level than 8740. While 8740 and ARP2000 share similar characteristics – ARP2000 is capable of achieving a tensile strength of 220,000 psi. Stress corrosion and hydrogen embrittlement are typically not a problem.

L19: L19 is a very high strength material capable of delivering a tensile strength at 260,000 psi. L19 requires special care to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture.

ARP3.5 (AMS5844): The high cobalt content of this alloy, while expensive, delivers a material with superior fatigue characteristics and typical tensile strength in the 260,000 280,000 psi range. The immunity to hydrogen embrittlement and corrosion is a significant design consideration. This material is primarily used in connecting rods where extremely high loads, high RPM and endurance are important factors.

CUSTOM AGE 625+: This super-alloy demonstrates superior fatigue life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Typical tensile strength is 260,000-280,000 psi.

Brian Crower, Inc. was created to fill the need for high quality, high performance, late model internal engine components, in stock, at very affordable prices. Stroker kits for all popular Sport Compact applications and camshafts and valve train to match. Complete packages designed to work together to deliver more horsepower and torque as well as greater reliability.

Their state-of-the-art precision machining processes, along with extensive industry knowledge spanning generations, has evolved to produce the highest quality internal engine components which are trusted and used by many top-tier racing teams today.

Here at Serck Motorsport, we manufacture, supply and distribute many premium performance products for your race car having used them ourselves! Many of our techniques come directly from our practices with premium motorsport teams in Formula 1, British Touring Cars, Drag Racing, Drifting Series, NASCAR, etc.

Other ARP Products