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1987 – The valve cover surfaces were changed so that the mounting lip was raised and the bolt location was moved from 4 bolts on the perimeter to 4 bolts along the centerline of the valve covers (this design debuted on the Corvette in 1986, and the Chevrolet 4.3L 90 degree V6 the year before). Also changed were the mounting angles of the two ...
The original Chevrolet engine with its rare Stromberg 97 triple carburetor setup and Chevrolet Corvette finned aluminum valve covers has been rebuilt and reinstalled. [7] It is the cover subject of the March 2009 edition of Hot Rod Deluxe, a "retro" version of Hot Rod Magazine.
The new hydraulic lifter motor featured a forged steel crankshaft, running in a four-bolt main block, with special rods, impact extruded pistons, a higher lift camshaft, mated to special heads with larger valves running at a higher 9:1 compression, and included finned aluminum valve covers to help dissipate heat.
The Chevrolet Inline-4 engine was one of Chevrolet's first automobile engines, designed by Arthur Mason and introduced in 1913. Chevrolet founder Billy Durant, who previously had owned Buick which had pioneered the overhead valve engine, used the same basic engine design for Chevrolet: exposed pushrods and rocker arms which actuated valves in the detachable crossflow cylinder head.
Springing was by torsion bars. The engine was a small-block Chevrolet that had been bored and stroked to 5,572 cubic centimetres (340 cubic inches) and equipped with Hilborn injection. The 4-speed manual transmission was from a Corvette. The finished car weighed 816 kilograms (1,800 pounds). Miller's Devin-Chevy won its class at Pikes Peak that ...
All V8 engines received hydraulic roller lifters and a new valve cover/head design. Valve covers featured new sealing and center bolts in the valve covers. Heads featured a new raised lip for improved valve cover sealing and the two center intake bolts were changed from 90-degree orientation to 72 degrees.