And torque is for towing.ġ994 was the first year of Ford’s 7.3 Powerstroke production run. …just remember that horsepower’s for hauling ass. Now let’s get down to the nitty gritty details… Part Number – 5C3Z-9VE527-ARM, CMR-7-RMħ.3 Powerstroke Engine Cylinder Firing Order.Years – Later 1999 Powerstrokes to 2003 (specifically for cylinder #8).AE and AF Injectors – Cackle Fix – Cylinder 8.Years – Later 1999 Powerstrokes to 2003.Years – These were on the International T444E Engine.Part Number Cylinder 8 (Cackle fix) – F4TZ-9VE527-AARM, FI-2-RM.Part Number Cylinders 1-7 – F61Z-9VE527-ERM, CMR-2-RM.Split-shot injectors reduced knocking and smoothed out the engine, but more importantly to California and CARB, reduced emissions by more fully and completely burning the fuel in the combustion chamber. Split shot injectors work by “pre-charging” the cylinder with a small amount of diesel first and then following it up with a larger injection of diesel fuel. Non-California 7.3 Fords didn’t get split-shot injectors until 1999. This high pressure oil forces the injector’s needle tip open, thus “injecting” diesel fuel into the combustion chamber.Ĭalifornia emissions-CARB – the California Air Resources Board-required 19 7.3 diesel Powerstrokes to be equipped with split-shot fuel injectors. I detail it and the 7.3 HPOP-high pressure oil pump-used to actuate the injectors in these three 7.3 HPOP articles:ħ.3 injectors work by getting an electronic signal telling them to let high pressure oil from the HPOP into the injector. The 7.3 Powerstroke has a HEUI-hydraulically actuated electronic unit injection-fuel injection system. This is not to be confused with overall capacity, which I detail in that 7.3 oil change article. I talk about this in-depth in the 7.3 oil change article, but the 7.3’s oil change capacity was and remains 15 quarts. 7.3 Powerstroke Engine Dimensions SpecĪnd the dimensions of the 7.3 L diesel are 34″Lx32″Wx38″H 7.3 Powerstroke Compression Ratio Spec The 7.3 Powerstroke displaces 444 cubic inches-7.3 liters. 7.3 Powerstroke Bore and Stroke SpecĤ.11 in (104 mm) bore and 4.18 in (106 mm) stroke 7.3 Powerstroke Displacement Spec If you have trouble keeping the details of those two straight, just remember that horsepower’s for hauling ass. And the amount of torque that an engine can exert depends on engine RPMs. In your 7.3 Powerstroke’s case, actually in any diesel truck, it’s the measure of rotational effort applied on a diesel engine’s crankshaft by the pistons. Torque is “a twisting force that tends to cause rotation.” Or simply, twisting force. 7.3 Torque Specs – DefinedĪnd let’s continue to make sure we’re all speaking the same language. Today, that unit of measure is used to define how powerful an engine is. Now, let’s revisit what horsepower means – a unit of power equal to 550 foot-pounds per second (745.7 watts).

Impressive!įord continued production runs of the 7.3 Powerstroke diesel until mid 2003 when, sadly for us enthusiasts, emissions requirements caused them to cancel production and replace the 7.3 Powerstroke with the “less-than-bulletproof” 6.0L Powerstroke.īut that’s another story… 7.3 Horsepower Specs – Defined These and other factors made the engine awesome for its time! And over twenty years later there are still reportedly over two million 7.3 Powerstrokes still on the road today. And Ford’s 7.3L powerstroke diesel was equipped with two overhead valves for each cylinder.

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