Not at all, Sunblade, I'm very glad you did. The new spirals may have no problems at all, but why play with fire?
I'm still going with Swifty, I do like that no leak guarantee

. I know the spiral did just a gif better(like 1c), but I like the swiftech's design. Also, by the time I get a coppertop on that $42 Maze3, I'm up in 462u zones, no?
The 84 Chevette sounds good to me (1/2 in & out seems easier to me) but I checked on AutoZone(.com) and they list it at around $80? I mean for $80 I could get a BIX. Heatercore4u.com is $50, but still.. I thought I could pick up a nice core for $20. Oh, BTW, It looks exactly like the DangerDen 'Heater Core"
I don't want to come across as ungracious; everyone's help here has been invaluable. I'm very fortunate to have been shown this forum; I really can't thank y'all enough.

T H A N K __ Y O U ! ! !