383 at meads marine

[cummins60]

nothing wrong with 882 heads i have manley valves, roller rockers ported ,polished planed screw in studs been ran with a 671 gmc blower ,,awesome heads ..

[Flessner71]

ummm 882's?? not 400hp with those heads especially if they're stock. they can barley support a 350. Get some vortecs and you'll have a solid 400hp