About the Cat 1676

Gillig8V71 said:

Hi,

For all those of you who remember the 8-cylinder derivative of the 4.5" bore Cat 1673 diesel, the 1676, what did you think of it at the time?

Specifications:
Bore: 4.5 in. (114 mm)
Stroke: 5.5 in. (140 mm)
Displacement: 700 cu. in. (11.5 liters)

It was an OHC design, and was supplanted by the 1693 (later 3406) six-cylinder diesel around 1967. However, the 1676 was also the basis for Cat's other Class 8 V-8 diesel engine, the 18-liter 3408, which has the same 5.4" bore as the 3406, but a slightly shorter 6" stroke as opposed to the 3406's 6.5" piston stroke (this results in the 3408 having the same bore/stroke ratio of 0.9:1, like the mid-range 1160/3208 with its 4.5" bore and 5" stroke).

~Ben

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Tutu'z Garage said:

I've always liked the 3408 I know they have what it takes to get a big load down the road quick. Their wide RPM range is what impressed me...plus their potential for more added horsepower is insane.
The engine little talked about is the 1676...I now know it boasted 700 cu. in.
@ 11 liters whereas the 3408 comes in @ 18 liters...if anyone knows the horsepower rating of the 1676 please let me know...there's 1 in the UK if it's
worth the effort...

Click to expand...

Tutu'z Garage said:

I've always liked the 3408 I know they have what it takes to get a big load down the road quick. Their wide RPM range is what impressed me...plus their potential for more added horsepower is insane.
The engine little talked about is the 1676...I now know it boasted 700 cu. in.
@ 11 liters whereas the 3408 comes in @ 18 liters...if anyone knows the horsepower rating of the 1676 please let me know...there's 1 in the UK if it's
worth the effort...

Click to expand...

isx525 said:

i believe the 1676 was a 320 horse motor , the 1673 was 270ish i think

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