Fig 27.9
The small-block Heavy Duty rod is based on the standard big block rod forging Fig. 27.9. It has 7/16-inch rod bolts, the big end is finished to 2.100-inch and is available in three stages, a standard 5.7-inch length, a 6-inch length and a semi-finished rod which can have the wrist pin hole machined to allow any length from 5.7-inch to 6.135-inch.