C6573-178

“C-body Big Block” Headers

1-7/8” O.D. primary tubes with 3” diameter collectors

• Designed to fit 1965-1973 C-body models

• 383 / 400 B-engines and 440 RB-engines

• Will not fit RB-engines with Indy heads

• Fits Stock heads, Edelbrock Aluminum Cylinder heads and Stage 5 heads

• Will not fit B1 heads

• Clears Automatic or Standard Transmissions

• Clears Floor or Column Shift

• Column shift will require a modified Torque Shaft Assembly if the drivers-side stock straight torque shaft

rod is mounted below the torsion bar. Torque Shaft Assembly sold separately.

• Clears A/C and Power Brakes

• Clears stock size starters (8-1/4”) or High torque mini starters (Mini Starter Part no’s: R53005984,

56027702AC, P5249644AB, P5007860)

• Clears stock steering linkage

• Will not clear the quick-ratio extended length pitman arm and idler arm

Click on photo to enlarge

Engine Size	Ceramic Coated with a Thermal Barrier $841 Part No.	Polished Ceramic Coated with a Thermal Barrier $870 Part No.
383 / 400	C6573383-178C4	C6573383-178C5
440	C6573440-178C4	C6573440-178C5

Header sets include: (2) 1/16” Header gaskets, (2) Reducer gaskets, (12) 3/8” 16x1 Header bolts, Reducer adapter set, All hardware necessary for the installation and Installation Instructions. Headers are compatible with TTI’s 2.5” or 3” Exhaust Systems.