[Regal502]

Thought I'd jump into this discussion...... I've always been intrigued to find out where our parts are actually coming from....
I was recently talking in confidence to one of my suppliers, and he really enlightened me to how many "manufacturing" companies don't actually "manufacture" anything really much anymore here in the USA. Here's a matrix of our discussion for simplicity sake, I've personally confirmed 75% (so far) to be 100% true! I know, I know...it's sickening!!

Manley Valves: Chinese
Ferrea Valves: Thailand or Chinese (this really disheartened me)
Callies Compstar Cranks: Chinese or Vietnam!
Most everyone's valvesprings: Chinese (except Isky, whom still does their own)
Pushrods: Chinese (with the exception of Manton & Smith Bros.)
Most Connecting Rods: Chinese (yes, this include callies, Manley, and even Crower!) Oliver excluded.
Most everything Comp Cams & RHS heads: Chinese foundried.
Howards: Mostly foundried in China.
Scat & Eagle: China
Most ALL Titanium Retainers: CHINA
Cloyes: Thailand or China or (Japan for timing chains)

Of course several high end companies are still here and FULLY foundried/manufactured AND machined, here in the Good ole' USA, they are:

Jesel
Crower (with the above exceptions)
T & D Machine
Sonny Bryant
Moldex
Jomar
ARP
Arias
Diamond Pistons
Wiseco
Melling
Stef's Fabrication
(some) Moroso