1-3/4" Headers

318 Poly Headers

Recommended for 320-550 horsepower

Poly Headers by TTI are constructed of 16 gauge mild steel tubing, mandrel bent on sophisticated computer controlled bending machines for precise fit and uninterrupted exhaust flow. The mandrel bending process maintains a constant inside diameter of the tube for a smoother finish with no restriction of flow and no crimping of the tubes.

1-3/4" O.D. tubes / merged into 3" collectors
3/8" thick laser-cut header and collector flanges, contoured for a leak free fit
Above the steering center link design (under chassis) offers maximum header to ground clearance
Full length header design for proven power gains
One piece header tubes / No slip tubes
Header Sets Include: 1/16" Header & Collector Gaskets, Header Bolts (16pcs) and Reducers/Adapters for hook-up to your Exhaust System.
Fits Applications:
- 1962-1966 "B"-bodies
- 1965-1966 "C"-bodies

318 1-3/4" Poly Headers		Footnotes (Click on number to open footnote)
Engine Size	318 wide block	24, 37, 39
Cylinder Heads	Poly
Front Ends	Stock	33
Auto Trans	Yes	23, 53
Standard Trans	Yes	23, 53
Floor Shift	Yes	23
Column Shift	Yes	6
Push Button	Yes
Power Steering	Yes
Manual Steering	Yes
Air Conditioning	Yes
Starters	Must use listed starters only	10, 18
Steering Linkage	OEM only	12, 33
Clutch Linkage	OEM only	22
Oil Filters	Screw-on short style or 90° angle adapter
Oil Pans	OEM or Milodon	11

Coating Options / Header Part No's:	"B" - body applications	"C" - body applications		Footnotes
"Raw" (Bare Mild Steel)	TTI Part No. Part # TTI318B-C0	TTI Part No. Part # TTI318C-C0	$637	17, C0

Ceramic Coated (outside)	TTI Part No. Part # TTI318B-C2	TTI Part No. Part # TTI318C-C2	$691	17, C4

Polished Ceramic (outside)	TTI Part No. Part # TTI318B-C3	TTI Part No. Part # TTI318C-C3	$719	17, C5