For sale 2 aries 10 litre engines 644ci and one 636 all complete from manifold to pan 28,000.00 each need to shead some weight on the studmule unlimited pulling tractor changing to all 8.3 engines call 214-736-3200 m-f 7to5 ask for billy or email txmeter@aol.com thanks for reading my add!!!!!!!!!!!!!!!!!!!