1956 Chevrolet Suburban Engine Internals

Spectre’s Harmonic Balancer Bolt Kit is designed to fit Chevrolet Small Block 265-400 V8 engines. This grade 8 bolt is 2-1/2 inches long, and features a plated finish for corrosion resistance. This kit also includes a security lock washer.

Product Features:

• Fits Chevrolet Small Block 265-400 V8 engines
• Features a corrosion resistant plated finish
• Gold iridite finish
• Grade 8 bolt, 7/16 inch-20 by 2-1/2 inches
• Includes security lock washer

There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting wind age trays and have specially designed standoff studs with serrated lock nuts to position the wind age tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat treated in-house to 200,000 Pounds Per Square Inch tensile strength, and precision J-form threads rolled after heat treat to create a fastener that has threads 1000 Percent stronger than others.

Product Features:

• Kit Come Complete With Hardened Parallel Ground Washers And High Quality Nuts
• Manufactured From 8740 Chrome Moly Steel
• Heat Treated To 200,000 Pounds Per Square Inch
• Precision J-Form Threads Rolled After Heat Treat To Create A Fastener That Has Threads 1000 Percent Stronger Than Others
• 200,000 PSI
• Sold As A Kit

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:

• Ultra Strong Bolt Rated At 200,000 PSI
• 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
• Delivers ARP Quality And Reliability
• Made In USA
• 12-Point Head
• Sold Individually
• 200,000 PSI
• 2.470″ Underhead Length

Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes them about 1000 Percent longer fatigue life than most main bolts, which are threaded prior to heat treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 PSI, is a premium replacement for OEM fasteners, or the 200,000 PSI nominal rated Pro Series, application specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel ground, hardened washers are included with each kit.

Product Features:

• Forged From Premium Grade 8740 Chrome Moly Steel
• Generous Under Head Radius And Rolled Threads For The Utmost Reliability
• Threads Are Rolled After Heat Treating, Which Makes Them About 1000 Percent Longer Fatigue Life Than Most Main Bolts, Which Are Threaded Prior To Heat Treating
• Parallel Ground, Hardened Washers Are Included With Each Kit
• Large Journal
• Sold As A Kit
• 180,000 PSI

Secure the harmonic balancer or dampener on your Chevy. Works on original equipment, high performance street, drag or circle track applications. Features a heat treated black oxide coated Grade 8 alloy steel bolt for strength with a tall hex head to prevent wrench from slipping. An extra thick parallel ground washer provides accurate, uniform torque, and a lock washer is also included.

Product Features:

• Heat treated black oxide coated Grade 8 alloy steel
• Tall hex head bolt to prevent wrench from slipping
• Extra thick parallel ground washer provides accurate, uniform torque
• Washers Provides More Accurate And Uniform Torque
• Grade 8 Alloy Steel

They are made from Grade 5 steel for strength and durability. The bolts are zinc plated to resist corrosion and provide a clean professional appearance. Sold as a set of six. Three 3/8-16 and three 3/8-24 mounting bolts with three lock washers.

Product Features:

• Made from Grade 5 steel for strength and durability
• Fits small or big block Chevrolet engines 1955-92
• Zinc plated to resist corrosion and provide a clean professional appearance