Big Block Tri-Y Under Chassis Headers
Our under-chassis, Tri-Y headers give you high-flow header performance and a custom fit that means you don't have to sacrifice your power steering. Retain exhaust studs in the heads, so no more breaking into a water jacket! Plus, unlike most headers, it doesn't capture the starter, and because it's designed specifically for your application, it installs quickly and painlessly, even with the engine in place. Fits '67 and up A-Body B/RB (400-500 hp), '63 & up B-Body and E-Body, with manual or power steering and automatic transmission. Available in raw steel or matte silver ceramic coating. Some vehicle may require motor mount shimming due to poor factory tolerances. We have a shim pack available HERE. Made in the USA!
Fits all vehicles below:
'67 & up A-Body,
'62 & up B-Body,
'65 & up C-Body,
'73 & up F, M and J-Body.
Designed for street use and light competition - retains all your low-end torque.
4-speed customers: Clutch Z-bar interferes with driver side header. You can use a hydraulic clutch system or our headers can be modified to fit a 4-speed transmission.
'65 C-Body applications: Headers do not work with 413, 440 or 426 wedge. In some cases, the automatic kick down bellcrank may hit the flange and need to be narrowed.
'66-73 C-Body applications: The 440 may require shims on the passenger side motor mount. In some cases, the automatic kickdown bellcrank may hit the flange and need to be narrowed.
'77-79 Magnum and Cordoba (B-body) with column shift: The shift linkage may be low enough to interfere with the header. TTI's offset shaft can solve this problem.
If your original studs are damaged or missing, we have replacement stud kits available here: R/RB Header Stud Kit
If you need a Mini Starter, we also have those available here: Mopar Mini Starter