Home > Ford Mercury > Block Components >   PROGEAR Ford 351C 351M 400 Heavy Duty Timing Chain & Gear Set - BETTER
	Our Price: $42.00 Stock Status:In Stock Availability:: Usually Ships in 24 Hours Product Code: AVO-436-HDSTR Qty:

Description   The PROGEAR Story In 1972 Avon Gear and Engineering bought B&B Manufacturing, a company that had been making timing gears and sprockets since 1918.  The new company was call Avon Automotive Products. In 1996 Avon Automitive entered the high performance timing market unde the name PROGEAR.  The focus has been to make performance timing sets that offer more features and more value than any other competitive product. Since then the number of US manufacturers of timing components has shrunk drastically, with Avon Automotive/PROGEAR as one fo the few remaining US manufacturers. Why are PROGEAR parts different? (and better) We are surprised at how many brands are out there selling so called "high performance timing sets" with crankshaft sprockets that are not even hardened.  Some are just virgin steel while others have the appearance of being heat treated, but are not actually hardened and other are just powdered metal. PROGEAR crankshaft sprockets are made from 1141 steel and are all hardened to 50 Rc.  We wanted to be better than the competition, so on the 3000 and 4000 series not only is the crank sprocket hardened, but the camshaft sprocket is heat treated as well. We also saw that the competitions sprockets being sold were full of razor sharp edges.  Viewed through a jeweler's loupe these sprockets are full of hanging burrs, many of which will end up in the oil pump. All PROGEAR sprockets are vibratory tumbled.  All steel sprockets are hand filed and then vibratory tumbled TWICE - once before heat treat and anain after being heat treated.  This knocks off any hanging burrs, eliminates sharp edges and removes heat treat scale.  It also peens and work hardens the surfaces for more durability. No other manufacturers that we know of takes the time to vibratory finish the sprockets... another PROGEAR exclusive! Features/Applications:   Features TR Series 3-Keyway Set Class 30 grey iron cam sprocket Heat treated steel crank sprocket Heavy duty independent roller chains with seamless rollers Made in USA Fits 1970-82 Ford 351C, 351M, 400

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