That’s a very interesting story. Following is what I was told, what I remember, etc. on F code retractables. I’ve never done any “independent” research, and years later at 73 I might have jumped a cog.
A local Thunderbird restoration guy (now retired) has an F code bird, and F code wagon, and an F code retractable. Along with other things. I haven’t seen anything but the bird in the last few years (both his F code and E code 57).
His was #12 of 14 F code retractable’s built to make a specific weight/hp class for 57 racing. It is all original except for the chrome on the rear bumper and the front seat cushion. If anyone would be of use, it would be him, or he’d know who to call. To track down the original car info.
Frank “pegleg” Rice on here reproduced the F code passenger car brackets and assemblies. I used them on the F code clone in my roadster. Pat rebuilt the VR series blower. I’ve still got that, a 56 Merc 312 block, turned crank, bored, 340 cid, 8.5 to 1 (true static) with a set of 471 heads ported by J Mummert when he still did that.
Don Antilla in Connecticut reproduced the Thunderbird F code brackets. He’s still involved in that and I spoke to him last week on an unrelated matter. I had a set of his brackets, very nice “oem” stuff. Just in case you need to know.
FWIW, Pat is probably still the best bet. John Erb retired, and Cliff on here does McCulloch work, but I don’t know about VR series. Hopefully him and Frank will chime in.
I don’t want to post contact info without permission, but if you reply here I’ll give you a call.
I’ve got a set of John’s aluminum heads. With the small chambers the pistons will have to be down in the hole or dished to get the compression ratio down (or cam overlap). I’m sure Ted would have an answer to that, but it’s beyond my knowledge.
Fun find, good project, enjoy.
My F code
miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ