Join Date: Jan 2002
Location: Calgary, Canada
Dont bend the tube, the dipstick will be very hard to remove.
I actually just go to GM and buy the stock drain plugs, which a 9/16 socket will fit. Avoid using the square head brass plugs or the allen plugs that come in a frost plug set, as they can be a nightmare to remove once they have been in awhile.
Other options are to get some 90 degree fittings and install them first, then use your petcocks.
Hope this helps.
2002 Jerry Bickle Cavalier, 446" Small Block, Brodix Canted Valve, lenco 5 speed, 7.54 @ 180. mph,1.06 60', 2235 lbs for 2014. GM Canada Docs, Highly Optioned 69 RSZ28 , Hugger Orange, White Stripes, 42,000 mile survivor, owned since 1973.