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Coated Steel Distributor GearsCrane Cams now offers two part numbers of precision machined, specially coated and processed steel distributor gears for popular Chevy engines using either cast flat faced lifter or steel roller camshafts. Roller lifter cams are made from either induction hardened steel or carburized steel. Neither of these materials are compatible with the normal stock distributor gears. In the past ''bronze'' distributor gears were used. For street applications these gears wear at an excessive rate and have to be replaced on a regular basis. By using modern heat treating and manufacturing processes, Crane Cams has developed a series of steel distributor gears that are compatible with standard cast cams and induction hardened and carburized steel roller cams. Crane Cams now makes it possible to use a steel distributor gear that provides OEM-style life-span, eliminating the need to frequently replace bronze alloy gears. These new Crane steel gears are available for most Chevy engines for both stock and aftermarket distributors.
Copper Alloy Gears
These drive gears are made from high silicon copper alloy (aluminum-bronze) and precision machined. They are required when using an 8620 steel billet cam. Certain special Crane roller camshafts are manufactured using an Iron Gear pressed onto the steel billet cam. These special cams DO NOT REQUIRE an aluminum bronze distributor drive gear. Refer to the specific camshaft application section of catalog. (Iron Gear cams part numbers have an IG suffix at the end of their part numbers) Note: The Shaft Diameter dimension referred to is the portion of the distributor shaft that the gear registers on. It may be necessary to remove the original gear to measure the shaft diameter correctly.
Iron Distributor Gears
Crane offers three ductile iron distributor drive gears for Chevrolet applications. These unique gears are machined from premium quality material and then specially processed, providing excellent compatibility with cast cams or factory-type, induction hardened steel hydraulic roller cams. The use of these gears on camshafts that have been previously run with other types or materials of gears, or the unnecessary use of high volume/high pressure oil pumps, can be severely detrimental to the life of the camshaft gear. Note: The Shaft Diameter dimension referred to is the portion of the distributor shaft that the gear registers on. It may be necessary to remove the original gear to measure the shaft diameter correctly.
Steel Distributor Gears
Crane Cams now offers six part numbers of precision machined, steel distributor gears for popular Ford engines using steel roller camshafts. Roller lifter cams are made from either induction hardened steel or carburized steel. Neither of these materials are compatible with the normal stock distributor gears. In the past bronze distributor gears were used. For street applications these gears wear at an excessive rate and have to be replaced on a regular basis.
By using modern heat treating and manufacturing processes, Crane Cams has developed a series of steel distributor gears that are compatible with both induction hardened and carburized steel roller lifter cams. Crane Cams now makes it possible to use a steel distributor gear that provides OEM-style life-span, eliminating the need to frequently replace bronze alloy gears. These new Crane steel gears are available for most Ford engines for both stock and aftermarket distributors. unnecessary use of high volume/high pressure oil pumps, can be severely detrimental to the life of the camshaft gear.
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