Thanks Ted for the article "585 horsepower" in the new Y-block magazine.  A few ( a bunch, really) questions on the main girdle ; how thick, steel or alum.? Are the studs ARP's and what application? Is there a gasket between the girdle and the block or just thin sealant? Are there spacers between the main cap nut and the underside of the girdle?   Barry L.

Ted: Since we're on the subject of the outstanding results you achieved recently with a customers 375 cu. in. engine. Who would have thought, say 4 years ago or so, that a Ford Y-Block could hit over 580 H.P & over 500 lb.ft. of torque, on a 4 Bbl intake!? I found your preamble in the article about exhaust temperature & oxygen sensor readings interesting.. I have to admit that going back to your 2010 EMC entry, it crossed my mind that maybe a 375" engine was maybe a bit to big to get an optimal score. Mind you, I have virtually O qualifications to make that kind of accessment.. Anyway, I have one question, what kind of fuel is needed for the 13.5 to one compression ratio?

Paul

Paul.  This engine requires much higher octane fuel than you can get at the corner store.  In this case, Sonoco 110 was used.

Lorena, Texas (South of Waco)