In January of ‘61 Bill Thomas and Dyno were working at Mead Chevrolet in Pasadena CA. Mead Chevrolet’s owner was a Corvette guy who catered to fuel injection 283 owners. Bill Thomas was the service manager and Dyno the fuelie specialist who ran a mean green 348/335 4-speed Biscayne fleet master. Bill Thomas had tight connections with Bunkie Knudsen at GM and had access to order a few ‘61 409 crate engines. I believe 5 engines were ordered through Don Steve’s Chevrolet and swapped out the 348’s in Gurney, Dyno, Tom Sturm, Frank Sanders and Bernie Partridge new 1961 Chevrolets. Dyno did the heads on them from what he told me years ago.