GM now offers Premium Remanufactured 4.6L Northstar
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Northstar Engines and System Technical Discussion Discussion, GM now offers Premium Remanufactured 4.6L Northstar in Cadillac Engine Technical Discussion; DESCRIPTION: Effective November 9, GM Parts will provide a remanufactured 4.6L Northstar Premium V8 Engine (RPO-L37/LD8). This engine will provide ...
  1. #1
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
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    Talking GM now offers Premium Remanufactured 4.6L Northstar

    DESCRIPTION:
    Effective November 9, GM Parts will provide a remanufactured 4.6L Northstar Premium V8 Engine (RPO-L37/LD8). This engine will provide an viable alternative to repowering your customer's late-model Cadillacs. Available on Powertrain Wholesale Truckload Program.


    EFFECTIVE DATE:
    Available November 9, 2007


    ORDER INPUT:
    Order via RAPID.


    GENERAL INFORMATION:
    Each reman Northstar engine includes all of these brand new components:
    Cylinder Block
    Crankshaft
    Pistons and Piston Rings
    Crankshaft Bearings
    Camshafts
    Oil Pump Assembly
    Intake and Exhaust Valves
    Timing Chain
    All Gaskets and Seals

    Also, for customers desiring to rebuild their own Northstar engines, GM Parts offers two short block assemblies.
    These short block assemblies include all new:
    cylinder block castings
    pistons, connecting rods
    crankshaft and bearings

    Applications:

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    AJ, You have just made some '90's owners into Happy Campers. Betcha this Forum had a little something to do with the decision.

    Now, where can I get a GM long block for '02 STS L37 ???

  4. #3
    Lord Cadillac is offline Cadillac Maniac
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    How much will these engines cost? Any idea?
    Have an iPhone? Than you can get involved right now. Click here to download Cars Connected.

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    codewize's Avatar
    codewize is offline Cadillac Owners Master
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Yeah that's going to be a score for a lot of people.

  6. #5
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Ummm Do they include timeserts? Higher tension oil rings? better seals?


    Are these avail thru GM Parts Direct?

    How much do they run AJ?

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    AJxtcman's Avatar
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Timesert suck!
    Higher tension rings suck!!
    They will be getting prices soon.

  8. #7
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Well, ok Timeserts sucks.. I meant Bigserts.... :-P

    Why does higher tension rings suck? They serve to lower oil consumption which we all know the Northstars are famous for.....

    The only negative I can think of with higher tension rings are increased wear on the cylinder liners... I'd rather have a little wear in 300,000 miles than having to constantly wonder how much oil my N* is drinking up........

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    codewize's Avatar
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    I believe the oil consumption is there for a reason.

    And why do Timeserts suck?

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    I'd rather have the oil consumption and less ware. I can add oil, can't add ring or cylinder ware. When that happens you're gonna use oil anyway. An added benefit to oil consumption is that you are occasionally fortifying the oil additives between oil changes.

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Quote Originally Posted by Ranger View Post
    I'd rather have the oil consumption and less ware. I can add oil, can't add ring or cylinder ware. When that happens you're gonna use oil anyway. An added benefit to oil consumption is that you are occasionally fortifying the oil additives between oil changes.
    Is there a "low oil" warning feature on the N* engine,or should you check dip stick from time to time?

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Yes, there is a level sensor and you will get a CHECK OIL LEVEL message when it is 2 qts low, just about the time it drops off the end of the dipstick. It will warn you before it lets you hurt it.

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Quote Originally Posted by Ranger View Post
    Yes, there is a level sensor and you will get a CHECK OIL LEVEL message when it is 2 qts low, just about the time it drops off the end of the dipstick. It will warn you before it lets you hurt it.
    Thank you again.

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Quote Originally Posted by Gearheaad43 View Post
    Well, ok Timeserts sucks.. I meant Bigserts.... :-P

    Why does higher tension rings suck? They serve to lower oil consumption which we all know the Northstars are famous for.....

    The only negative I can think of with higher tension rings are increased wear on the cylinder liners... I'd rather have a little wear in 300,000 miles than having to constantly wonder how much oil my N* is drinking up........
    I completed an online ring course a while back. I think they said 80% of the engines drag comes from rings. The new style rings work without problems in most engines.
    Example:
    4 cylinder car get on the freeway uses 70%+ throttle.

    6 cylinder car or van will see less, maybe 50%+.

    Now the Northstar. The older people don't like the noise, the slightly younger group don't have the time and are worried about abuse (you could not do this to a car in the 80's). The next group below that in my opinion likes to do it, but the time thing again.

    You must force Combustion chamber pressure behind the ring to force them out against the cylinder wall. This also forces carbon bind the rings. Good clean oil and WOT will cut down on oil consumption.

    Quote Originally Posted by codewize View Post
    I believe the oil consumption is there for a reason.

    And why do Timeserts suck?
    TimeSerts are not part of the block they just make the bolt bigger!
    They is truly what they do. So if you have a NEW casting why would you want to ruin it with TimeSerts. TimeSerts are a Bandaids.

    Quote Originally Posted by Ranger View Post
    I'd rather have the oil consumption and less ware. I can add oil, can't add ring or cylinder ware. When that happens you're gonna use oil anyway. An added benefit to oil consumption is that you are occasionally fortifying the oil additives between oil changes.
    I am with you on this.

  15. #14
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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    Gearhead43, I believe GM will be using all new blocks due to the cast-in liners. Timeserts or equivalent wouldn't allow GM to issue much of a warranty.

    Low-tension rings do not, by design, make a N* or any other engine an "oil burner", and N*'s aren't famous for oil burning. A few in here are, and the forum is concentrated, so it appears that the percentage is much higher than actual. (How many N* cars do you see on the highway, leaving a plume of oil smoke ???) The official GM stand on oil consumption is now 1 qt./2,000 miles, up from 1 qt./1,000 miles a year ago. There's a thread in here somewhere, recently, about just that.

    (We use low tension compression rings and 3-piece oil control rings in our custom boat engines, and an Olds 455 generally turns 2,600 to 3,400 rpm all day, while a GM 454 turns up to 4,350 all day, both with negligible oil consumption.)

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    Re: GM now offers Premium Remanufactured 4.6L Northstar

    So am I to understand these new reman motors are supposed to be a better alternative to timeserting your current motor? And are they supposed to not suffer the same failure in the future?

    And again, WHAT'S THE COST?

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