161

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Original submission by T Apr 4th 2007:

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Holden 161 engine as originally used in HD Holdens. Click to Enlargen. Photo by Trev PooBaa.

161 Motor:

161 Cubic Inches Displacement, 6 cylinders.Bore 3.375.

All the red sixes have the same 3.00" stroke except the 201, 202 and 3.3 which have a 3.25" stroke.Blue and black 3.3's also have a 3.25" stroke.

161 HP Thread

161 Engines were originally fitted to late model HD's, HR's, then HK-T-G. These cars carried no external engine identification badge when this engine was fitted. LC Torana's that were sold with this engine carried
the 2600 badge externally.
Used the adjustable hydraulic lifter valve gear that was used in 186 engines.

 

  Red 161 Identification chart.

 MODEL Introduced
mm/yy
 Finished
mm/yy
 Engine prefix Capacity
CuIn (cc)
 Power
bhp (kw)@rpm
 Torque
ft.lbs.(Nm)@rpm
 Compression
 HR 4/66 1/68 161W 161(2638) 108(81)@4400 146(198)@2000 8.2
 HR 4/66 1/68 161R 161(2638) 114(85)@4400 157(213)@2000 9.2
 HK 2/68 5/69 161L 161(2638) 108(81)@4400 146(198)@2000 8.2
 HK 2/68 5/69 161H 161(2638) 114(85)@4400 157(213)@2000 9.2
 HT 5/69 7/70 161L 161(2638) 108(81)@4400 146(198)@2000 8.2
 HT 5/69 7/70 161H 161(2638) 114(85)@4400 157(213)@2000 9.2
 HG 7/70 7/71 161L 161(2638) 108(81)@4400 146(198)@2000 8.2
 HG 7/70 7/71 161H 161(2638) 114(85)@4400 157(213)@2000 9.2
Holden 161 Engine from an HR Standard Holden. Click to Enlargen. Photo by Dirsme.
Holden 161 Engine from an HR Standard Holden. Click to Enlargen. Photo by Dirsme.


Holden 173 Engine disembled, typical of all Red 6 Engines. Note the Rockers are Adjustable because it is a 149 Head. Standard 173 Heads use Non-Adjustable Rockers. Image by Bubsy. Click to Enlargen.

Block ID:

Holden High Compression 161 Engine from an HR Holden. Click to Enlargen. Photo by Matt Hipsley.



  Count the welsh plugs on the starter side of the block 3=149, 5 (3 big, 2 small) = 179,186,161 ect
Cheers
Q-ball.  Image:P4130326.JPG 
Holden 161 Engine retrofitted to an EJ Holden. Note the Alloy Timing Gear. The Harmonic Balancer has also failed. Photo by Blissy. Click to Enlargen.
Holden 161 Engine retrofitted to an EJ Holden. Note the Alloy Timing Gear and Conrod Hole punched through the Block. The Harmonic Balancer has also failed. Photo by Blissy. Click to Enlargen.
    
 
Confirmed Holden 161 engine with HP casting. See the thread. Click to Enlargen. Photo by HRPanelvan.

 
Holden 161 engine as originally used in HR Holdens. Click to Enlargen. Photo by Qute.

Holden 161 engine as originally used in HD Holdens. Click to Enlargen. Photo by Trev PooBaa .
 
  
Screwless 161 casting. Photo by Q-Ball. Click to Enlargen.

Links:

Bubsy's Shed

Link to Qute's Large 161 image

Holden High Compression 161 Engine from an HR Holden. Click to Enlargen. Photo by Matt Hipsley.

Terms:

Terms

Trev Pooba's Shed

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