Ls1 Engine Build Rockers

With the lifters free of oil, you'll note that tugging upward on the rocker will allow it to tilt backward, pulling its tip off the valve. This isn't because there's any physical space between the valvetrain components anymore: rather, you're compressing the lifter plunger's internal spring. Unlike solid lifters, hydraulic lifters have a range of travel that allows the rocker tip to stay in contact with the valve, compensating for the expansion and contraction of metal that occurs at different engine temperatures. When adjusting the valves once we have our real pushrods in hand, we'll set the rocker adjuster to put the lifter in its correct "preload" range. But there's also the operating range for the adjuster (.25 to 2 turns): so we're making sure we buy pushrods that will put us within the relatively narrow window where both the lifter plunger and rocker adjuster can be at their proper positions.

My First Stroker Part 3 - LS1 Engine Build

With the lifters free of oil, you'll note that tugging upward on the rocker will allow it to tilt backward, pulling its tip off the valve. This isn't because there's any physical space between the valvetrain components anymore: rather, you're compressing the lifter plunger's internal spring. Unlike solid lifters, hydraulic lifters have a range of travel that allows the rocker tip to stay in contact with the valve, compensating for the expansion and contraction of metal that occurs at different engine temperatures. When adjusting the valves once we have our real pushrods in hand, we'll set the rocker adjuster to put the lifter in its correct "preload" range. But there's also the operating range for the adjuster (.25 to 2 turns): so we're making sure we buy pushrods that will put us within the relatively narrow window where both the lifter plunger and rocker adjuster can be at their proper positions. View Related Article

Ls1 Engine Build Rockers

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