Yep they also have a 100% sourced
& Made In The USA line of products too
along with their regular offerings
I had bought a few things there, have always said great quality
the Early (foreign Chinese cast) Stealth heads sucked,
I had issues, I wasn't the only one either, it was bad
(
440 Socuce old (?) original ownership/management (?) IIRC)
burning head gaskets, torching parts
or having inferior foreign parts/intake valves broke etc.
They have improved, vastly
(
IIRC there was a new ownership/management change (?) now, or shortly after)
but I still have moved on from the Stealth heads, decades ago...
Very costly to fix a head especially when a valve breaks off in it at RPM
especially, a 'fully professionally ported' set, 1 offs...
I must say they (440 Source) made it good, parts wise anyway
& I have no complaints there...
I had just switched over back then to Edelbrock RPMs
(
for my better/hi-HP street-strip combos, the best combo, per $ by far)
Made 100% in the USA, I never had an issue after that...
Just ordered a few parts from them, last Dec. 2022 (?)
and got here quick, in a few days IIRC
when others were "
still" claiming shipping/supply issues
(Wuhan Flu crap nonsense)
Great guy/s to deal with, quick service & shipping too