It is a HUGE semi truck/industrial wrecking yard. Richard is the guy to talk to.
Quality Core Company, Inc.
15844 South I-35
Bruceville, TX 76630
They usually have about a dozen or so, but it is best to look them over in person because each usually has a little bit of damage, depending on how it had been handled. Only thing wrong with mine was an oil pressure fitting was broke off in the block, but it only took 30 seconds with an E-Z-out and it was out (But the stream of oil shooting out of the side on start-up was a real surprise!)