Melling and no. HV oil pumps on a slant 6 are not a good idea. It can stress the oil pump and camshaft drive gear and ultimately wipe them both out. The Melling M66-C standard volume pump is plenty adequate. I just replaced all that I did on mine because I already had it, it really didn't "need" it and yours may not either. I'm just particular like that. I figured since I had the thing all the way OUT and the pan off, there was no better time than the present. Know what I mean Vern?