How big are the rocker arms on a Chevy?

These 1.7:1 ratio hardened steel rocker arms have elongated slots to provide extra clearance for high-lift (.600″ and greater) camshafts Subscribe to receive monthly email communications such as news, offers, and more from Chevrolet Performance.

What kind of engine does a Chevrolet 427 have?

The L-72 engine program, which launched for 1966, was still in its ascendancy in 1967. Quite a different beast from the two other 427s in the Chevrolet option catalog, the L-72 begins with a cast-iron four-bolt-main block and cast-iron, square-port cylinder heads with massive 2.19-inch intake valves.

Is the L-72 the right engine for the SS 427?

Some of those same experts who have taken a look at Bill’s car seem certain that the absolutely correct L-72 engine in his car appears to be the right engine for his SS 427 as it left the factory. In other words, there is no evidence of any shenanigans going on here, but without paper–mere paper–the car exists in a sort of limbo.

What are big block rocker arms used for?

These 1.7:1 ratio hardened steel rocker arms have elongated slots to provide extra clearance for high-lift (.600″ and greater) camshafts Use with all 396-502 Big-Block heads with adjustable rockers Each assembly includes rocker arm as well as the ball and nut Can be used on any Gen-V or Gen-VI engine by using rocker stud P/N 12368941

Select your preferred location and we’ll note which parts are ready to be picked up TODAY. Rocker Arms, Stud Mount, Roller Tip, Steel, 1.6 Ratio, Fits 3/8 in. Stud, Chevy, Small Block, Set of 16 Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.6 Ratio, 3/8 in. Stud, Chevy, Small Block, Set of 16

Where do the Rockers go on a small block Chevy?

Then at maximum valve lift, the rocker tip actually travels back toward the intake side of the engine, arriving at the valve centerline at maximum valve lift. The original 265 ci small-block Chevy generated a tremendous amount of controversy around its “spindly” stamped steel rocker arms with their individual rocker studs.

What does the rocker arm do on a pushrod engine?

Rocker Arms. All cam-in-block pushrod engines use a rocker arm to convert the reciprocating motion of the lifter and pushrod into motion that controls the valve. In simplest terms, the rocker arm operates like a child’s teeter-totter in which the upward motion of the lifter is converted to downward motion of the valve.

What kind of rockers did the 265 ci Chevy have?

The original 265 ci small-block Chevy generated a tremendous amount of controversy around its “spindly” stamped steel rocker arms with their individual rocker studs. Eventually, the stamped piece has given way to full roller rockers to take advantage of higher valvespring pressures for higher-RPM use.