|
Have those been fully welded on the ID/other side of the flange, perhaps? A lot of header manufacturers will spot or stitch the outside of the flange and then all-around weld the interior. Likely for dimensional/positional accuracy of the primary tube locations, then a sealing weld on the inside, to prevent the tubes from moving when heated.
__________________
2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13
Mods being installed-
oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.
|