12 Valve B

* 160 hp with 400 lb-ft
* 175 hp with 420 lb-ft - Dodge only
* 180 hp with 420 lb-ft - Dodge only
* 190 hp with 475 lb-ft
* 210 hp with 520 lb-ft
* 215 hp with 440 lb-ft - Dodge only
* 230 hp with 650 lb-ft

Got that off www.dodgeram.org.

I'm curious as to how the same 12v engine can have 210 hp and 520 lb-ft torque in one case and 215 hp and 440 lb-ft torque in another. Is it timing? Different internals? Just curious to know what causes the difference...

 

Mostly timing because in non onroad applications the same engine doesn't have to follow emissions laws.
I've seen marine 5.9s where the stock timing is 21°.

 

possible cam differences as well.

 

Would it not also be plate differences? I thought for a while you could get a HP upgrade from Dodge to bump it to 230hp and 600 or so ft-lbs?

 

Wouldn't need to change the plate. They can be slid forwards and rearwards to adjust the hp.

They may have different governors or spring settings, too.

May have a different turbo.

 

I have a 210HP/520TQ motor it has a HX35/14WG and timing is 12.5*, I do not know what shape the fuel plate is yet but I have a No 10 to go in but it is only supposed to up the power to 230HP/630TQ. It is a road engine and so is a 230HP/630TQ which I could have bought enstead but I preferred the condition of the one I got. The 230HP/630TQ motor still had a HX35/14 on it but not sure about the timing, The pump has to be the difference could be DV's or the cam in the pump.

Gaza