HEADER FITMENT • Our headers were designed to fit with the engines located to the factory specifications.  If the engine is not located correctly in the chassis, the headers will not fit properly.  We strongly suggest you check your engine location prior to installation.  (Click here for the factory dimensions) • Due to various manufacturing designs, aftermarket parts, engine configurations, suspension combinations, etc... TTi cannot ensure headers and exhaust systems to fit all combinations.  However, we have done our best to accommodate both factory and aftermarket component combinations.  In some cases, slight modification or repositioning may be required on your part to clear the specific situation.

1.  PLATFORM:	67-76 A-BODY, 62-74 B-BODY and 70-74 E-BODY • Headers were designed to fit with the engines located to the factory specifications.  If the engine is not located correctly in the chassis, the headers will not fit properly.  We strongly suggest you check your engine location prior to installation.
2.  ENGINE SIZE:	383-400 B-ENGINES
3.  CYLINDER HEADS:	OEM BULLDOG EDELBROCK E-STREET EDELBROCK PERFORMER RPM INDY-EZ, INDY EZ-1 STAGE 5 TRICK FLOW 440-SOURCE EDELBROCK VICTOR* PROCOMP* STAGE 6* *67-76 A-body applications with Torsion bar suspension will require a Motor Plate to locate the engine. • Cylinder Head Studs:  Head studs may be used on the Passenger-side, however, the header tubes will not clear the cylinder head studs below the #3, #5 and #7 cylinders on the Drivers-side.  We recommend ARP bolts for clearance in these areas.
4.  SPARK PLUGS:	ANGLED PLUGS use header #400SR218N ...This header has adequate angled spark plug clearance. STRAIGHT PLUGS use header #400SR-218 ...Same header design, however this header will be clearanced (dimpled) in appropriate tubes to clear straight spark plugs.
5.  FRONT SUSPENSION:	OEM or EQUIVALENT with torsion bars COILOVER without torsion bars:  The following coilover systems have been fit-checked with these headers and found there to be no clearance issues...  RMS Alterktion, Magnumforce Tubular, Magnumforce Modular Transformer, Control Freak • Steering Linkage:  OEM with torsion bars or Rack & Pinion without torsion bars. • Steering note applies to 67-76 A-bodies & 62-65 B-bodies Only:  This header will not clear a Quick/Fast Ratio Pitman & Idler arm that is longer than the OEM arms.  Example; The Fast Ratio Pitman & Idler arms by Firm Feel, Inc. are 3/4" longer then stock.  DIY clearance can be achieved by dimpling the header tube(s), however, doing this modification will void your header and coating warranty. • UniSteer Performance:  Headers will not clear the UniSteer rack and pinion.
6.  ENGINE MOUNTS:	OEM, SCHUMACHER or EQUIVALENT • 67-76 A-body applications with a stock front suspension, using Edelbrock Victor, Procomp or Stage 6 cylinder heads, will require using a motor plate to locate the engine.
7.  AUTO TRANS:	YES • Floor Shift:  Some applications with an auto transmission may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector, see illustration sheet #3703 • Applications with a 3-section throttle rod will require modification to the bell-crank & pivot shaft, see illustration sheet #101
8.  STANDARD TRANS:	YES • 67-76 A-body / Clutch Linkage:   For clearance issues using your stock Z-bar, we recommend using a Hydraulic clutch or TTi's modified Z-bar, sold separately part #ZB307. • 62-74 B-body & 70-74 E-body / Clutch Linkage:  For clearance issues using your stock Z-bar, we recommend using a Hydraulic clutch.  TTi does not offer a modified linkage to satisfy this situation for B&E-bodies. • Flywheels:  10.5" 130-tooth ring gear & 11" 143-tooth ring gear.  (Note: 11" flywheel must use a RobbMc Performance starter #3005) • Keisler Tremec TKO-500/600 Transmissions:  It is imperative that the output-end of the tail shaft is in exactly the same position as the stock transmission output shaft for the headers to fit properly.
9.  FLOOR SHIFT:	YES • Auto Trans:  Some applications with an auto transmission may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector, see illustration sheet #3703
10.  COLUMN SHIFT:	MAY require modification to your shift linkage to achieve clearance • TTi does not make a linkage to satisfy this situation
11.  PUSH BUTTON:	YES
12.  MANUAL STEERING:	YES
13. POWER-STEERING:	A-BODY applications with torsion bars:  NO, will not clear power-steering. B & E-BODY:  YES
14. AIR CONDITIONING:	YES
15. STARTERS:	THE FOLLOWING STARTERS HAVE BEEN FIT-CHECKED WITH THESE HEADERS AND FOUND THERE TO BE NO CLEARANCE ISSUES... • Chrysler starters - Part no's:  R53005984, 56027702AC • Mopar Performance starters - Part no's:  P5249644AB, P5007860, P4286522 • PowerMaster Performance XS torque starter - Part no:  9523  • RobbMc Performance starter - Part no:  3005 (This starter must be used with an 11" flywheel, 143-tooth ring gear)
16.  BELL HOUSING:	STOCK or BLOW PROOF  • Lakewood Bellhousing scatter shield:  Modification is required to the passenger-side bell-housing.  A half moon shaped notch will need to be ground down approximately 1/4" deep to clear the header tube.
17.  OIL FILTERS:	OEM
18.  OIL PANS:	OEM, MILODON or CHARLIE'S • Milodon street & strip part no's:  30930, 30931, 31010 • Milodon road race part no's:  31580, 31581 • Charlies oil pan
19.  VALVE COVERS:	OEM, CAST ALUMINUM, STAMPED STEEL, FABRICATED ALUMINUM

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Angled spark plugs:  This header has adequate angled spark plug clearance (No plug dimples in tubes)

Straight spark plugs:  Same header as above, however this header will be clearanced (dimpled) in appropriate tubes to clear straight spark plugs.

Updated: April 14, 2025

Coupled with a TTi Exhaust System, these headers become even more efficient!  ...Click here

• Installation video on a 1968 Plymouth Valiant INSTALL INSTRUCTIONS To view and print PDFs, you must have a supported version of Adobe's Acrobat Reader installed.  This program is available for free, download by going directly to Adobe.com        TTi 400SR-218        TTi 400SR218N   TOP OF PAGE      COMPONENTS & REPLACEMENT PARTS   PART DESCRIPTION PART NUMBER PRICE   SPARK PLUG WRENCH Designed for easier access of tightening and removing spark plugs when running a Brodix B1BS cylinder head.   727 Transmission # 20003 $ 50.92 each     HEADER GASKETS HTX-900 gasket material:  A high density non-asbestos fiber metal core composite consisting of graphite coated, hi-temperature facing material chemically and mechanically fused to an expanded steel core. A proven hi-performance exhaust gasket composite used extensively within the automotive racing industry, where characteristics such as structural strength and hi-temp load retention are required to withstand severe under-the-hood operating environments. Recommendation:  Permatex 81160 gasket silicone sealant.  Use a very thin layer of Hi-temp silicone sealer on each side of gasket. Note:  (2) Supplied with header purchase. # GA-HG440 $ 31.90 /set     HEADER BOLTS 3/8-16x1 GR5 zinc plated. Note:  (12) Supplied with header purchase. # BO38 $ .94 each     3.5" 3-BOLT COLLECTOR GASKET     HTX-900 gasket material:  A high density non-asbestos fiber metal core composite consisting of graphite coated, hi-temperature facing material chemically and mechanically fused to an expanded steel core. Recommendation:  Permatex 81160 gasket silicone sealant.  Use a very thin layer of Hi-temp silicone sealer on each side of gasket. Note:  (2) Supplied with header purchase. # GA-RG35 $ 5.37 each     HEADER REDUCER ADAPTERS Made of 16 gauge aluminized tubing, 3/8" thick flanges, includes 3-bolt gaskets & mounting hardware. Note:  (1 set) Supplied with header purchase.  Size required when ordering.     Collector size x Exhaust system size x Reducer/Adapter length For 67-76 A-body, 66-79 B-body & 70-74 E-body applications 3.5" x 2.5" x 6.0" long Reducers # RED35X25X6 $ 66.50 /set 3.5" x 3.0" x 6.0" long Reducers # RED35X30X6 $ 70.00 /set 3.5" x 3.5" x 6.0" long Adapters # RED35X35X6 $ 74.00 /set     HEADER REDUCER ADAPTERS Made of 16 gauge aluminized tubing, 3/8" thick flanges, includes 3-bolt gaskets & mounting hardware. Note:  (1 set) Supplied with header purchase.  Size required when ordering.     Collector size x Exhaust system size x Reducer/Adapter length For 62-65 B-body applications 3.5" x 2.5" pre-bent design Reducers # RED35X25B6265 $ 55.50 /set 3.5" x 3.0" pre-bent design Reducers # RED35X30B6265 $ 59.50 /set For 62-65 B-body using INDY cylinder heads 3.5" x 2.5" pre-bent design Reducers # RED35X25B6265-I $ 66.50 /set 3.5" x 3.0" pre-bent design Reducers # RED35X30B6265-I $ 70.00 /set   TOP OF PAGE     ADDITIONAL OPTIONS • Evacuation tubes and EGT probe fittings can be installed prior to coating headers.  Installation of these options are considered a "Special-Order".  Please allow an additional 3-4 weeks for the special order work and the coating process. • Special-Order Deposit Required:  TTi requires a $50.00 non-refundable deposit for the following Special-Orders prior to the start of your order.  The balance will be due upon completion.   DESCRIPTION PART NO. PRICE O2 SENSOR BUNGS + INSTALLATION Steel fitting, 18mm threads, installed in the header collectors or reducer adapters. Installation locations:  Drivers-side, 9 o'clock / Passenger-side, 3 o'clock.     Installed in Header Collectors ... # MISC-02COL $ 117.38 /set  Installed in Drivers-side Header Collectors ... # MISC-02COL-DS $ 68.69 each  Installed in Reducer/Adapters ... # MISC-02RED $ 117.38 /set  Installed in Drivers-side Reducer/Adapters ... # MISC-02RED-DS $ 68.69 each         EVACUATION TUBE + INSTALLATION •  Evacuation tubes will be installed in the reducers or adapters •  Drivers-side installed in the 9 o'clock location •  Passenger-side installed in the 3 o'clock location     Evacuation tube installed in the header collectors ... # SP005-COL $ 126.40 /set Evacuation tube installed in the header reducer adapters ... # SP005-RED $ 126.40 /set         CRANKCASE EVACUATION SYSTEM KIT + TUBE INSTALLATION •  Allstar Performance Crankcase Evacuation System:  2 chrome plated push-on valve cover breathers, breather grommets, check valves and 3.5'' threaded tubes •  The 3.5" long threaded tubes will be used from the kit and will be installed in the reducer or adapters •  Drivers-side installed in the 9 o'clock location •  Passenger-side installed in the 3 o'clock location # KIT-EV34145 $ 152.20   Kit + Tube Installation   EGT PROBE FITTING + INSTALLATION •  304SS exhaust gas temperature fitting, 1/8" pipe, internal thread •  Typical installed 1" from the header flange •  (!) Specify which cylinder tubes when ordering. # MISC-EGT1 1st fitting  $  97.26 # MISC-EGT2 2nd fitting  $ 114.30 # MISC-EGT3 3rd fitting  $ 131.70 # MISC-EGT4 4th fitting  $ 149.08 # MISC-EGT5 5th fitting  $ 166.46 # MISC-EGT6 6th fitting  $ 183.83 # MISC-EGT7 7th fitting  $ 201.21 # MISC-EGT8 8th fitting  $ 218.59     TOP OF PAGE     Updated: April 14, 2025