60 series max reliable hp?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Turbrospeed, Jul 1, 2021.

  1. Rideandrepair

    Rideandrepair Road Train Member

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    The original 430/470 can’t be beat for durability and economy. Detroit tried to compete in the HP race using the 12.7. I think they created more problems than it was worth. The short lived 12.7 550, and the eventual lowering of HP ratings for 12.7s after finally coming out with the 14L. Proves the point. IMO. They’ll never admit it, and others will defend the 12.7 500hp. I’ve had 2 of them. I really like them, but they don’t have the Torque of the bigger displacements. I’m not sold on pushing them very far. It can only lead to an early overhaul.
     
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  3. jamespmack

    jamespmack Road Train Member

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    They will take 2450 rpm all day long. 2700 start snapping inj. rocker arms. But after that. That engine has no problem turning 3,000rpm.
     
  4. Rideandrepair

    Rideandrepair Road Train Member

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    I think Benjamin knows that. I got the info from him. May 98 I believe is the cut off for non drilled blocks. After that they were capped, ready to be added if needed. He also has the serial # info. Before and after. My question for those more knowledgeable than I, is this. Can the drilled rods used in later years be substituted for squirters? Or is having both more desirable. I’m starting to wish I’d upgraded to drilled rods for my BK.
     
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  5. jamespmack

    jamespmack Road Train Member

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    Well this will be more of a opinion than fact. The drilled rods help with wrist pin, and some with piston heat. The squirters help some with wrist pin and alot with piston cooling. I have fleet experience with them and now run my own. My opinion, I wouldnt go over 500hp without both. Not saying you can't. But I do not think I would.
     
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  6. Elroythekid

    Elroythekid Road Train Member

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    I wasn't saying that the very basic is where we should be, but, stretching it to the max is also not a good idea and can get expensive.
     
  7. benjamin260_6

    benjamin260_6 Medium Load Member

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    550hp is a long way from the max for a 12.7
     
  8. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    If your looking for horsepower, CAT is the only way to go……..
     
  9. Turbrospeed

    Turbrospeed Bobtail Member

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    I thought about putting a c15 in my century but not sure about the fitment....i know on a long nose truck it will fit perfect.
     
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