1-7/8″ Small Block W2 Race Headers

67-76 A-BODY, 62-79 B-BODY, 70-74 E-BODY 76-80 F-BODY and 77-88 M-BODY

340, 360, 402 CRATE, 408 MAGNUM CRATE, MOPAR 440 SUPER COMMANDO CRATE

•  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. 

(!) Your cylinder head center bolt hole pattern spread must measure 4-3/4″ from the center of the left bolt hole to the center of the right bolt hole for these headers to fit.  Click here for measurement illustration.

• Headers designed with adequate plug clearance for angled plugs

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.

•  67-76 A-bodies Only / Steering:  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.  (This note pertains to 67-76 A-bodies only.  Headers will fit B & E body applications with Quick/Fast Ratio arms.)

•  Headers will not clear UniSteer Performance Rack and Pinion.

OEM

•  Headers fit with Schumacher Creative Services engine mounts or equivalent.

YES 

•  Floor Shift:  Some applications may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector. See illustration sheet #3703

YES

•  Flywheel:  Applications with an 11″ flywheel, 143-tooth ring gear must use a RobbMc Performance starter #3005.

• Clutch Linkage:  OEM   (!) 67-76 A-body applications may require a modified Z-bar.  [Modified Z-bar sold separately #ZB340]

• Keisler Tremec TKO-500/600 Transmission:  Correct installation 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.

YES

•  Auto Trans:  Some applications may require the adjustable swivel & the lower rod to be re-positioned to clear the header collector.  See illustration sheet #3703

B, E, F & M-BODY:  YES

• 71-74 B-body & 70-74 E-body applications may require a modified Torque Shaft Assembly.  Sold separately #B7174TSA

YES

YES, POWER-STEERING or MANUAL STEERING

•  67-76 A-bodies Only / Steering:  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.  (This note pertains to 67-76 A-bodies only.  Headers will fit B & E body applications with Quick/Fast Ratio arms.)

•  AUTO TRANS / STANDARD TRANS with a 10.5″ flywheel (130-tooth ring gear)…

OEM or MINI STARTERS

Chrysler part no’s:  R53005984, 56027702AC

Mopar Performance part no’s:  P5249644AB, P5007860, P4286522

PowerMaster Performance starter no’s:  9513, 9523 (Catalog pg. 30)

•  STANDARD TRANS with an 11″ flywheel (143-tooth ring gear)…

RobbMc Performance starter:  3005

Note:  Mini starters can easily be changed without removing the header.

ALL

SHORT SCREW-ON STYLE OR A 90º ADAPTER CAN BE USED

OEM, MILODON or EQUIVALENT

•  Milodon part no’s:  30935, 30936, 30940, 30941

•  Pro Touring pan part no’s:  31590 & 31595

OEM, CAST ALUMINUM, STAMPED STEEL