Factory harmonic damper bolts are an area of concern for racers and performance enthusiasts for two reasons. First is the bolt’s ability to sustain the necessary clamping force when subjected to high RPM crankshaft flexing and twisting. A second consideration is the extra abuse that comes from rotating the crank manually when adjusting valve lash, setting timing, etc. This often results in the bolt head getting “rounded off” to the point where wrenching is compromised. Noted fastener manufacturer ARP has addressed these problems and offers a pair of solutions. Related Articles - Elgin Custom Push Rods for GM LS Engine - Ferrea Valve Seals - Stef’s Chevy 409 Oil Pan Kit
First is a special 12-point bolt that’s designed to be used with a deep socket and offered for a variety of domestic and import engines. Also available for many popular applications is a large hex-headed bolt that is forged to accommodate a standard 1/2” square drive breaker bar or ratchet wrench. Lower Timing Cover
Both are manufactured from a premium grade 8740 chrome moly steel and heat-treated in-house to provide a nominal tensile strength of 190,000 psi. A large diameter 1/4” thick washer is included to help distribute the load over a wide area, while the bolts and washers are black oxide finished for extra protection.
For additional information visit www.ARP-bolts.com. A free printed catalog that details 5,000-plus fasteners is available upon request. Personalized tech assistance can be obtained by calling 800-826-3045.
Klotz Super TechniPlate is a high-performance lubricant designed specifically for two-stroke racing engines.
Klotz Super TechniPlate is a high-performance lubricant designed specifically for two-stroke racing engines. Its unique formulation combines the benefits of Klotz Original TechniPlate with Klotz BēNOL.
Its primary strength is maintaining a tenacious lubricating film on hardware, especially under high temperatures and rpms. Blends with alcohol and gasoline, and can be used with air-cooled or water-cooled engine architecture. Intended for pre-mix only and is not recommended for oil injection or power valve engines.
The 9117 sprint car pumps are trusted and used by some of the top Sprint Car engine builders in the country.
BoostLine Connecting Rods are designed to survive under big boost and large hits of nitrous oxide. The 4340 steel rods have a hybrid design that combines the strength of an I-beam rod with the light weight of an H-beam rod. They also have triangulated pockets where the big end meets the beam area. This arrangement
Edelbrock’s Pro-Flo 4 Plus Self-Learning Engine Management System makes it easier than ever to swap a Gen III Hemi into your classic Chrysler, Dodge, or Plymouth car or truck. The self-learning ECU adjusts the fuel map as you drive, providing optimum performance with no need for laptop tuning or costly dyno sessions. You can use the
Built with the finest materials available, our Camshaft Belt Drives feature several performance and valve train stability enhancements over traditional timing chains and gear drives. The Gates patented High Torq Drive™ reinforced belt spins dry on a steel crank pulley and a hard coated aluminum upper pulley and helps isolate crankshaft harmonics to the valve
With four available scavenge section widths, plus 4, 5 and 6-stage designs, Aviaid can tailor scavenging vacuum to an engine builder’s needs.
Xceldyne supplies top teams in NASCAR, IndyCar, Road Racing, Dirt Late Model, NHRA, MotoGP, WRC and Le Mans.
Melling’s Hemi 5.7L and 6.1L High-Volume Oil Pump provides 20% higher volume than stock.
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Automatic Transmission Flywheel Content for engine professionals and enthusiasts