Holden HK-HT-HG (1968-1971) HG-HK-HT- Chevrolet 283-400 Small Block V8 1 5/8" Tri-Y To Suit Holden HK-HT-HG

For over 50 years, PACEMAKER has been renowned for its innovative exhaust headers crafted in Australia. The brand was the first to introduce mandrel-bending technology to the header market, revolutionizing the industry. PACEMAKER continues to push the bar, utilizing advanced technology to develop one of Australia's largest Tri-y and 4-into-1 catalogs. In 1997, PACEMAKER launched its Pipe Over Cone™ technology (copyrighted design number 135712) to reduce turbulence and extend the product's life.

Pacemaker stocks quality headers featuring their "Mandrel Bend" System. Their cutting edge facility equips a computer-controlled Bender with a patented vertebrate-type mandrel, creating round bends previously inaccessible in Australia. Moreover, Pacemaker's headers come with precision laser-cut, machined flanges, jig-welded joints, hi-tensile bolts, big bore pipes, and emission hook-ups. For added protection, these headers are finished with a heat-proof finish tested up to 1270°, and feature Pipe Over Cone™ technology (copyright number 135712). This special technology increases exhaust gas flow, reducing turbulence within the header and resulting in improved power and performance.

 

This product is designed to fit Holden HK-HT-HG Series: HG-HK-HT-.
Notes: Chevrolet 283-400 Small Block V8 1 5/8" Tri-Y To Suit Holden HK-HT-HG

• Will fit slant plug heads

• Will fit Powerglide automatic

• Will not fit with Power Steering

Additional Information:

• 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 ¼” higher than LH spacer)

• Will not fit column automatic unless linkages are modified

• PH5302 headers are designed to fit with genuine factory starter when fitting to a 153 tooth (10 ½”) flex plate (auto only) or 153 tooth (13”) ring gear (manual only)

• PH5302 headers will not fit the genuine factory starter when fitting to 168 tooth (11”) flex plate (auto only) or 168 tooth (14”) ring gear (manual only). Pacemaker recommends the use of an after market hi-torque starter. Please choose carefully as not all starter solenoids are in the same position.

Product Specs

Part #:	PH 5302
P/Steering:	No	Gasket:	DSF 9
Air Con:	N/A	Primary Pipe:	1⅝" (41mm)
Oxy Sen:	N/A	Secondary Pipe:	2" (51mm)
E.G.R:	N/A	Outlet:	2¼" (57mm)
Y Branch:	N/A	Fitting Time:	3 Hrs

Specifications

• Direct bolt on fitment
• Mandrel bends
• All fitting hardware includes
• Australian made
• Warranty - 2 years on headers, 5 years on exhaust components.
  

Important Notes

Product Specs

Part #:	PH 5302
P/Steering:	No	Gasket:	DSF 9
Air Con:	N/A	Primary Pipe:	1⅝" (41mm)
Oxy Sen:	N/A	Secondary Pipe:	2" (51mm)
E.G.R:	N/A	Outlet:	2¼" (57mm)
Y Branch:	N/A	Fitting Time:	3 Hrs