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gm crate motor help

Discussion in 'The Hokey Ass Message Board' started by bmita, Oct 8, 2012.

  1. bmita
    Joined:
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    Location:
    blanchester, ohio

    bmita Member

    need some input from the fellow hot rodders, it seems that everybody uses the the 350/290 gm crate motor, has anyone ever used the 350/260 gm crate motor? i want a new motor for my model A, i found a really great deal on a 260 hp motor i was just looking for some feedback some of you guys. is there a big notice in hp? thanks
  2. 36-3window
    Joined:
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    in my own little world

    36-3window Member

    i have used many of the 260 hp crate motors with good luck. reading the spec's between the 260 and 290 hp all i can see different is the camshaft and about $300 more money. buy the 260 and install a better cam on your own and save some $$$
  3. jimbousman
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    Burlington, Wisconsin

    jimbousman Member

    Do it! Running a 350/260 in my Chevy. Still smokes the tires.
  4. Gman0046
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    Possums Crotch, Kentucky

    Gman0046 Member

    No problem with the 260 HP crate motors. Real easy to get over 300 out of it.
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  5. oldolds
    Joined:
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    strauss valley pa

    oldolds Member

    Those HP figures are for stock intake carb and exhaust. They come to life with a little more cam, good intake and good exhaust. Nice quick, bang for the buck. Good warranty program, might not be covered if you do the cam. They are the belly button of the hot rod scene.
  6. Pewsplace
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    Pewsplace Member

    Good choice and cheap compared to rebuilding a worn out 350.
  7. porknbeaner
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    porknbeaner Member

    Belly button yes but if you intend to tweek it anyway the cheaper of the two all other things being equal is your best bet. Once you swap out the cam and do some other things to it to make it perform better it is no longer a belly button in my opinion.

    Now as for the Hp difference it would be real norticable if you could get some traction but in a light car with no traction you really are not going to notice 30 hp by the seat of your pants.
  8. Mr48chev
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    Mr48chev
    ALLIANCE MEMBER

    1399 from Jegs right now but your local Chevy or GM performance dealer might match or beat that. And it's getting down in the price range of having a core engine rebuilt these days. Ask the local GM dealer's parts person what he/she can get you a 10067353 engine for and what the availability is. That would save freight that you would have to pay buying it from Jegs, Summit or another vendor.

    True they are common to the hot rod scene simply because they are affordable to most guys building a hot rod and they work. We have too many guys who forget that not everyone has 4 to 10K to build a "really cool and correct" engine for his hot rod out of a core that costs as much as the 260 hp crate motor to begin with. Just check the asking prices for some of the rebuildable early Cad, Chrysler, nailhead and other highly desirable engines in the classifieds and then add in what it costs to rebuild one. A simple master rebuild kit for the 56 Desoto Hemi in my shed is over 1000 now and that doesn't include a good cam, unobtainable aluminum intake or a 500.00 pair of finned valve covers.
    Last edited: Oct 8, 2012
  9. 50mercfan
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    50mercfan Member

    Get it. You won't be sorry.


    Posted from the TJJ App for iPhone & iPad
  10. prewarcars4me
    Joined:
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    prewarcars4me Member

    Add me to the list of happy guy with that motor.
  11. mustang6147
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    Kent, Ohio

    mustang6147 Member

    Keep in mind, its not built by GM.... It outsourced by the cost. Meaning Joe will build it for $2000, but Johnny can do it for $1500. You get Johnnys motor.

    Mine had umbrelad exhaust valves. Cheap Chinese metal, and a plugged EGR system in it original van, caused the valves to be sucked into the heads.

    1 by one I was loosing cylinders. SO I did a valve Job, put in stock chevy valves. Which was a big upgrade compared to what came in it.
  12. bmita
    Joined:
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    blanchester, ohio

    bmita Member

    i knew you all would help out, some of you talked about a cam, have any of you put cam a 350/260? if so what did you use?
  13. I used the 300 hp 350 crate engine in my old 2 door. a lot of bang for the buck. HRP
  14. oldolds
    Joined:
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    strauss valley pa

    oldolds Member

    That was a common problem with the GM Target Motors. Those were rebuilt motors. These motors are new GM, not outsourced, They use the finest things GM has to offer. That being said, most of them are Mexico and Canada built. I am sure that many parts come from other places.
  15. Don's Hot Rods
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    Don's Hot Rods Member

    I think they are an exceptional value and the price has remained this low for a number of years. The suggestion to see if your local Chevy dealer will match is a good one, that is what I did when I put one in a Corvette for a guy I knew. When I picked it up they had about 20 of them stacked in the back room, so I just backed up my truck and drove home with it.

    A few of my friends are running them in their hot rods, some change the cam for a more lopey idle and put some cool carb set up on it for looks.

    Don
  16. the boogieman
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    west burbs chicago

    the boogieman Member

    i have the 290 hp crate in my 50 chevy build! i ended up putting a new cam in it used edlebrock rpm to go with the carb and intake i am running. runs great lots of power. from my research shows the 290 hp compared to the 260 is cam and heads. better valves in the 290 hp vershion. looking to swap heads for edlebrocks rpm this winter 70cc. engine has been very good so far i have drag raced it. got 14.6 times from it.
  17. BigDogSS
    Joined:
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    SoCal

    BigDogSS Member

    My nephew put a 290 HP engine in his 61 Bel Air. Great power and a Bitchin' idle. Personally, I'd go with the 290 HP engine.
  18. panhead_pete
    Joined:
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    Brisbane, Australia

    panhead_pete Member

    What intake, carb, dizzy etc do you guys recommend for the 290HP version?
  19. Don's Hot Rods
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    Don's Hot Rods Member

    If you are just looking for a good running, dependable street motor, something like an Edelbrock Performer intake with a 500 or 600 cfm Edelbrock on it, and a vacuum advance Mallory Unilite distributor would be a good combination IMO. I ran that same combo on a 350 Vortec and it was super dependable, ran strong, and gave me about 25 mpg regularly.

    Don
  20. panhead_pete
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    panhead_pete Member

    That's exactly what Im looking for performance wise Don.
  21. panhead_pete
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    Brisbane, Australia

    panhead_pete Member

    Sorry for the additional question but is there a good supplier of T350's to go behind one of these 350/290?
    Thanks
    Pete
  22. jetnow1
    Joined:
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    CT

    jetnow1 Member

    Both Summitt and Jegs show free shipping on their web sites if your local dealer will
    not deal. Jim
  23. nwbhotrod
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    wash state

    nwbhotrod
    ALLIANCE MEMBER

    I lost the factory 327 in my 62 Impala pulld it out to do a rebuild. while I had it out I got a zz4 crate motor drop it in wow what a runner it is. the 327 sitting there all rebuilt just cant seen to put it back in

    Attached Files:

  24. panhead_pete
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    Brisbane, Australia

    panhead_pete Member

    nwbhotrod which ZZ4 did you buy? 385, 355 or 350hp?
  25. nwbhotrod
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    nwbhotrod
    ALLIANCE MEMBER

    355 hp
  26. KoolKat-57
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    Feb 22, 2010
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    Dublin, OH

    KoolKat-57 Member

    I believe Jeg's has free shipping this month, check their website or give them a call!
    Great engines for the money!
    KK
  27. Vandy
    Joined:
    Nov 15, 2009
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    368
    Location:
    L.A. Ca

    Vandy Member

    Just a quick heads up, I buy a very large number of SBC core motors for rebuilding. A lot of these cores come from Chevy dealers. A big thing I have been seeing lately is the crate motors are coming in as warranty returns and upon tear down I have been finding two big issues with factory mistakes.
    #1 burnt intake valves - caused by random intake seats cut off center, this is 2 or 3 seats on the same motor. normally you never see burnt intake valves.
    #2 some idiot on the assembly line is installing all the cam bearing's with the oil hole at 12 O clock. After clocking them right for all these years now they got a big case of stupid. - this reduces oil pressure significantly.
    The last 10 or so in a row had both issues on the same motor.
    This is not an opinion - it is what it is, and is great for me on the receiving end. I wish I could send the guy at the Mexican assembley plant a little something for Christmas.

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