Callies Specialty Products

Callies line of specialty products are offered to fill our customer's needs for hard to find, quality items to compliment our crankshafts and related components.

Heavy Metal
   Callies tungsten heavy metal is specially machined to ease installation and produce an excellent appearing product. Our HM slugs are centerless ground, then precision turned to length and chamfered. The result is unmatched dimensional consistency.
    A wide range of lengths are available to specifically match the variety of counterweight thickness' found on Chevy, Mopar, and Ford crankshafts. Diameters from .500" up to 1.250" make locating the exact weight much easier.
    Callies also offers precision drills and reamers, ensuring a perfect interference fit for your heavy metal.

Billet Main Caps
    Callies billet steel main caps are designed to improve block strength and increase bearing life. These high quality caps are available for the complete line of Chevy small block engines including the Gen II LT1, and the Gen III & IV LS1. Main straps are also available for less demanding applications. Complete ARP main stud and bolt kits are available for most common applications.

Damper Studs and Hat Washers
    Callies designed this high quality stud kit specifically for use with our crankshafts employing deep hole post drilling. The kits are available in various lengths to suit a variety of crankshaft post driven accessory drives. The kit consists of a roll threaded stud, parallel ground washer, and 12 point nut, all made of 8740 moly steel.
    Intended as a great companion item, Callies has developed a hex head hat washer that will simplify turning over the engine. It is manufactured from 8740 material, heat treated to 40Rc, and designed to allow a bolt head or nut to fit within it's thickness, making it ideal for use in tight quarters.

Heavy Metal

SBC Main Caps

LS1 Main Caps