intake is 0.015" exhaust is 0.025" and on the right side of the block in the flywheel housing there is a place for a barring tool and a timing pin. the pin positions the engine in either tdc #1 or #6. if its positioned on #1 tdc then you adjust intake #1,2,4 exhaust #1,3,5 then barr the engine over and do the rest of the valves. torque the lock nut for the adjusting screw to 22 ftlbs + or - 5 ftlbs
Intake is .015 and exhaust is .030
well i just looked it up on our cat website and it said .025...