TUNED Exhaust Headers 1-3/4" Primary
Suit Holden HK-HG S/B 283-400 Chev

Application: Suit Holden HK, HT, HG with S/B 283-400 Chev 283-400 V8 Manual & Automatic
P/Steering: No
Air Cond.: N/A
Oxy. Sen.: N/A
E.G.R.: N/A
Y Branch: N/A
Gasket: DSF 9
Prim. Pipe: 1-3/4" (44mm)
Sec. Pipe:
Outlet: Collector 3" (76mm)
Fitting Time: 3 Hrs

* If required with alternator bracket on LH side use part number PH 5303
* Will fit slant plug heads
* Will fit Powerglide automatic
* Will fit Turbo 400 automatic if vehicles floor has been cut for correct fitment of automatic
* Will only fit with original engine mounting spacers or Pacemaker spacers Part Number PEMP 307
NOTE: spacers must be fitted on correct side of vehicle. (RH spacer is 1/4" higher than LH spacer)
* Will only fit LH hydraulic clutch conversion
* Will not fit columnautomatic
* Will fit with Power Steering

Pacemaker are the pioneers of quality headers featuring the Mandrel bend system. Pacemaker's modern workshop incorporates the very latest equipment available, including aircraft quality computerised benders with revolutionary, patented, vertebrate type mandrel, ensuring perfectly round bends, previously unavailable in Australia. Pacemaker are the only Australian header manufacturer to manufacture their products with pipe over the cone design. The advantages are there is no protruding inside the collector cone, therefore increasing exhaust gas flow and eliminating turbulence inside the exhaust header. The result is better gas flow and increased horsepower.

• Precision cut and machined thick flanges to eliminate leaking and warpage
• All headers are jig welded for guaranteed fitment and are checked prior to shipment
• Comprehensive fitting instructions with V8 sets, together with hi-tensile header bolts
• Emission hookups provided where applicable
• Primary pipes fitted through the flanges
• Heat proof finish tested to 1270°C