Chevrolet Big Block Engine - The Big-Block From Hell
4a. Because we have more than 300 pounds of seat pressure, we chose the 0.250-inch-wide beam J2K Mohawk rocker arms, which are the strongest rockers Jesel offers. The J2K's design is further strengthened with tool steel lash adjusters and extra-wide 0.250-inch needle-nose rollers. Our rocker arm ratio is 1.7:1. Our block wasn't machined for lifter bushings, so we opted for Jesel's tie bar-style lifters. The oil circuit in these lifters sends pressurized oil to the roller, bearings, pushrods, and upper valvetrain. Another benefit of these lifters is that they are available with offset pushrod cups to aid in moving the pushrods away from the intake runners in heads like ours.
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