RI Engineering

Cylinder head resurfacing up to ten times flatter than machine shops and next day delivery at equivalent prices

We offer the most advanced head resurfacing technology available. Higher quality, more reliable, faster turnaround times. Abrasive lapping is superior to machine shop fly-cutting in nearly every way. Benefits of head lapping: --Minimal stock removal, typically .002" to .003" or less depending on level of warping/damage --Superior flatness of .000" to .001" across entire surface of the head - no waviness in any direction or length --Typical surface finish of 30 microinches RA. Can be adjusted higher or lower depending on gasket manufacturer's specs --Near scratch-free finish --No metal flakes, burs, or flywheel milling marks...EVER --No head disassembly/stripping required The end result is a near perfect head to block sealing surface for both reliability and optimal performance.