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
2.  V8 ENGINES:	5.7L Eagle, 6.1L SRT8, 6.2L Demon, 6.2L Hellcat*, 6.4L 392 Apache *HDK Suspension w/ 6.2L Hellcat, must use the 2.0" Header #64LHCA-R1 5.7L engine:  Plug the passenger-side EGR port by tapping the hole and installing a set screw to plug it. 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.
3.  CYLINDER HEADS:	OEM
4.  FRONT SUSPENSION:	COILOVER / TUBULAR:  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, Gerst/QA1, HDK Suspension*, Hotchkis *HDK Suspension w/ 6.2L Hellcat, must use the 2.0" Header #64LHCA-R1
5.	- - -
6.  AUTO TRANS:	904, 727, GM 4L60E, 545RFE • Floor Shift:  Some applications may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector.  ◊ Click here to see illustration [3703]
7.  STANDARD TRANS:	A833 4-SPEED, TKO500* 5-SPEED, TKO600* 6-SPEED, T56 TRANS • Z-bar Clutch Linkage...   67-76 A-body applications must use a hydraulic clutch.  However, DIY Z-bar clearance can be achieved by modifying the mechanical Z-bar clutch linkage.  TTi does not make a clutch linkage to satisfy this situation.   62-74 B-body & 70-74 E-body applications can use a hydraulic or mechanical Mopar clutch linkage system. *Tremec TKO-500/600:  (!) Correct installation of the Tremec Transmissions is imperative.  The output-end of the tail shaft must be in exactly the same position as the stock transmission output shaft for the headers to fit properly.
8.  FLOOR SHIFT:	YES • Auto Trans:  Some applications may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector.  ◊ Click here to see illustration [3703]
9.  COLUMN SHIFT:	NO • However, column shift clearance can be achieved by modifying your shift linkage.  TTi does not make a linkage to satisfy this situation.
10.	- - -
11.  MANUAL STEERING:	YES
12.  POWER-STEERING:	YES
13.  AIR CONDITIONING:	YES
14.  STARTERS:	The following STARTERS have been fit-checked with these headers and found there to be no clearance issues... • AUTO TRANS / STANDARD TRANS with a 10.5" flywheel (130-tooth ring gear)... Bouchillon Performance starter part no: 61R274 Chrysler starter part no': 56029274AA • STANDARD TRANS with an 11" flywheel (143-tooth ring gear)... Chrysler starter part no': 56029274AA RobbMc Performance starter part no: 3005 Bouchillon Performance starter part no: 61R274 (!) Starter must be located on the DRIVERS-SIDE for these headers to fit.
15.  BELL-HOUSING:	OEM or EQUIVALENT
16.  OIL FILTER:	OEM
17.  OIL PANS:	OEM, MILODON or EQUIVALENT • Milodon part no:  31000 (Will not clear part no's:  31002, 31003)

PART NO'S & PRICING •  Click here for coating option details, header maintenance, and warranty information. •  Header sets include:  Header gaskets, header bolts (16), and header reducer adapters to transition to an exhaust system. •  All Gen III Hemi header collectors equipped with O2 bungs. •  (!) Exhaust system size required when ordering. •  Prices do not include Shipping, Handling or California Sales Tax, if applicable.  Prices subject to change without notice. HEADER FINISH 1-3/4" Gen III HEMI HEADERS (For Coilover Suspension applications) PART NUMBER PRICE C0:  RAW MILD STEEL • Bare metal • Very susceptible to rust # TTi 61HCA-R2C0 $ 803.00 /set C4:  CERAMIC COATED • Silver satin (matte) exterior • Thermal barrier coated interior (Reduces under hood temperature by approximately 50º)   # TTi 61HCA-R2C4 $ 984.00 /set C5:  POLISHED CERAMIC COATED • Polished silver exterior • Thermal barrier coated interior (Reduces under hood temperature by approximately 50º)   # TTi 61HCA-R2C5 $ 1020.00 /set   Coupled with a TTi Exhaust System, these headers become even more efficient!  ...Click here     INSTALLATION INSTRUCTIONS   INSTALLATION 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 1-3/4" G3 HEMI HEADERS (For Coilover Suspension applications) O2 SENSOR BUNGS Header collectors equipped with bungs.   TOP OF PAGE     ACCESSORIES & REPLACEMENT PARTS     PART NUMBER PRICE HEADER GASKETS   •  Port size: 1.880" X 1.380" •  Recommendation:  Use a very thin layer of High-Temp Silicone Sealer on each side of gasket. •  HTX-900 gasket:  A high density non-asbestos fiber metal core composite consisting of graphite-coated, high-temperature facing material chemically and mechanically fused to an expanded steel core. Note:  (2) Supplied with header purchase. # GA-HG61 $ 31.90 /set 3.0" 3-BOLT COLLECTOR GASKET •  Recommendation:  Use a very thin layer of High-Temp Silicone Sealer on each side of gasket. •  HTX-900 gasket:  A high density non-asbestos fiber metal core composite consisting of graphite-coated, high-temperature facing material chemically and mechanically fused to an expanded steel core. Note:  (2) Supplied with header purchase. # GA-RG30 $ 4.79 /each HEADER BOLTS •  8mm-1.25 X 25mm Note:  (16) Supplied with header purchase. # BO125 $ 0.94 /each HEADER REDUCER ADAPTERS to transition headers to an exhaust system 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.     3.0" x 2.5" x 9.0" long reducers # RED30X25X9 $ 57.50 /set   3.0" x 3.0" x 9.0" long adapters # RED30X30X9 $ 62.50 /set   TOP OF PAGE     Updated: September 12, 2025