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manley thru 08 chrysler hemi 5 7l w bead loc groove 1 555in race master exhaust valves set of 8 2022-ram-promaster-2500-esi7798512 an internal reservoir combined withManley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.