I have a truck with a v8 flathead on a 51 and a 71-72 302 on another 51 pickup.
My question is,
who as been the most reliable engine part vendor, in your opionion for flatheads.
This includes online, or local auto chains.

All in terms of reasonable cost, quality and availablilty

 

I've never deal with him but have heard good things about him. Is Redsheaders. You can get almost everything to build a flatty.
www.redsheaders.com

 

I get most of my stuff at the local NAPA, but I've got a great one here.

Online or catalog/phone orders go to Reds Headers(CA), Sacramento Vintage Ford(CA)Patrick's Antique auto (AZ), Mac's Antique Auto (NY), Joblot Automotive(NY)

 

Everyone mentioned suppliers that I've had good luck with- another that I tend to favor is Dennis Carpenter (they have a web site- search on Dennis Carpenter). I've noticed that a lot of the suppliers ship parts that have his logo on them anyway so why not go to the source? I've also seldom had to wait for an item that was back ordered. My $0.02

Leaks