B O L T S "Stove bolts (
above ) are less precisely made than machine bolts. They are made with either flat or round slotted heads and may have threads extending over the full length of the body, over part of the body, or over most of the body. They are generally used with square nuts and applied metal to metal, wood to wood, or wood to metal. If flatheaded, they are countersunk. If roundheaded, they are drawn flush to the surface. (Code: SB; Name: Manufacturers Stove Bolt Standard Thread)
In 1929, Chevy became a "Six at the Price of Four" by switching to the overhead-valve engine, since lovingly enshrined as the "Stovebolt", because of its large, quarter-inch slotted head bolts. Also sometimes known affectionnately as the "Cast-Iron Wonder", it grew from 194 cid and 50 bhp to 216.5 cid and 85 bhp by 1937, when it was completely redesigned. In 1955, higher compression and internal changes brought the venerable Blue Flame to 123 bhp."
"In their April '94 issue, "Collectible Automobile" magazine selected this motor as one of the American "Ten Best Engines" ever produced: "Simple in the extreme, it set the standard for "Use it and abuse it" reliability that Americans (and Canadians...) still expect in cars"."
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