Mike Thomas, Sr. from Rochester Hills, Mi (ex Chrysler Labor Negotiator and avid car builder) built an orange AAR back in the mid 80's. He was able to procure a 355 cu. in. T/A motor that was used in dirt tract racing and stuffed it into the AAR. Mike was also known for having one of the first 426 Hemi blocks that he stuffed into a '68 Barracuda. He had the contacts to all the old race program motors and I am sure he can shed some light on these blocks.