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gm goodwrench 350

Discussion in 'The Garage' started by 86chevybanshee, Jul 20, 2004.

  1. 86chevybanshee

    86chevybanshee 1/2 ton status

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  2. Z3PR

    Z3PR Banned

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    8.5 TO 1 compression isn't much in my opinion. I'd reather have closer to 10 to 1.
     
  3. 85mudblazin

    85mudblazin 1/2 ton status

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    I got it and I like it alot, it is a very reliable engine it doesnt have as much power as a 454 but it gets my blazer goin pretty good.
    -Chris
     
  4. daleearnhardt01

    daleearnhardt01 1/2 ton status

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    If you want a drop in stock replacement then thats what that is. Cheap and reliable /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif
     
  5. wasted wages

    wasted wages 3/4 ton status

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    It's hard to go wrong with a new crate motor from GM.
    Check on the GM performance website and locate a dealer in your area and save the shipping from Jegs. You can pick it up at the dealership.

    I bought my 454 H.O. straight from a GM dealer, one suggestion,,and this is from experiance,,,REMOVE THE PAN FROM THE NEW ENGINE BEFORE YOU INSTALL IT!!!!!!!
    Why you ask???
    I installed my big block,pre lubed it and when I fired it up the oil pressure went from 70 lbs to 0.
    After much debate with the dealer I decided to pull the pan (in the truck) and found a 6"x6" piece of cardboard and plastic wrap sucked up to the bottom of the oil pump pick screen. Bolted up the pan filled up with oil and have had no problem since. GM extended the warrenty a year for me for the trouble. /forums/images/graemlins/peace.gif
     
  6. ugly_blazer

    ugly_blazer 1/2 ton status

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    [ QUOTE ]
    This brand new crate engine comes with a GM warranty and is covered for 3 years or 50,000 miles in applicable GM vehicles only.

    [/ QUOTE ]

    You may want to check if you have an "applicable GM vehicle". It looks like a good deal though.
     
  7. mtnman210

    mtnman210 1/2 ton status

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    they're great engines. I put the H.O. deluxe in last summer and it runs great. I do have some advice on it though. No matter what GM says or the manual says: prime the engine before you run it ("suppose" to be bench tested but..) also check the distributor. mine was in 180degrees backwards and this was also a problem for some other people I know that got the engine. Other than that it's met all my expectations.
     
  8. GRAYTEXK5

    GRAYTEXK5 1/2 ton status

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    I put one of these in my K5 about 3-4 years ago, and have never had a problem with it. it even survived being submarined. /forums/images/graemlins/whistling.gif I just flushed it out real good, filled it back up with oil, and it was good to go, been running fine ever since. and I don't know about in completely stock form, but with a good intake, carb, cam, and headers...mine makes plenty of power to push my blazer on 36's along just fine...oh and off-road. /forums/images/graemlins/thumb.gif
     
  9. Blue85

    Blue85 Troll Premium Member

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    I'm really happy with mine. It runs strong. While it's not considered a high performance engine, it is much better in power and torque the factory 350s were.

    From this web site, the power ratings for 1986:

    OHV Eight-cylinder 305 cid. (155) @ 4000 rpm
    OHV Eight-cylinder 305 cid. (160) @ 4400 rpm
    OHV Eight-cylinder 350 cid. (160) @ 3800 rpm
    OHV Eight-cylinder 350 cid. (165) @ 3800 rpm
    OHV Eight-cylinder 350 cid. (185) @ 4000 rpm
    OHV Diesel Eight-cylinder 379 cid. (130) @ 3600 rpm
    OHV Diesel Eight-cylinder 379 cid. (148) @ 3600 rpm

    I don't know what all of the different ones represent, but the best you could have gotten is 185HP.

    Jegs lists 260HP for the GoodWrench, which is a 40% increase in power - the equivalent of a basic supercharger install.

    Plus, since the heads are decent, all you need is a cam and intake swap with some headers to get close to 300hp.
     
  10. 86chevybanshee

    86chevybanshee 1/2 ton status

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    i got a cam intake and headers ready to put on it, for those who bought it at a dealership was there much difference in price?
     
  11. GRAYTEXK5

    GRAYTEXK5 1/2 ton status

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    I picked mine up at a dealership, and I think it was right at about $1300 out the door.
     
  12. mofugly13

    mofugly13 1 ton bucket of rust Premium Member

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    I got one with about 14000 miles on it and I love it. I just called around the dealerships in my area and asked for a price. I got it for $1300. I have an Edelbrock intake and carb on it. I want to put a cam in it but I'll wait until the waranty is up first.
     
  13. backcountry

    backcountry 1/2 ton status

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    [ QUOTE ]
    8.5 TO 1 compression isn't much in my opinion. I'd reather have closer to 10 to 1.

    [/ QUOTE ]

    10 to 1 is getting up there for unleaded fuel. For longevity reasons, I would go with 9.5 to 1 max and only with premium unleaded fuel. This way you have more room for error with your timing and elevation gain and loss. Just a thought! /forums/images/graemlins/peace.gif
     
  14. chulisohombre

    chulisohombre 1/2 ton status

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    i have one with close to 100000 miles on it.it was in the truck when i bought it.have had no problems with it.needs valve seels and oilpan seal.but other than that still runs strong.
     
  15. 86chevybanshee

    86chevybanshee 1/2 ton status

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    thanks for all the replies, im definatly gona pick one up
     
  16. JIM88K5

    JIM88K5 1/2 ton status

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    If your gonna put it in your 86 k20, you'll have flexplate
    issues if its the original motor. 86 went to one piece rear main seal. The 10067353 has a 2 piece.
     
  17. GRAYTEXK5

    GRAYTEXK5 1/2 ton status

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    I'm not sure, but I think you can even order it with a performance cam, for like $50 bucks more. just something you might wanna check into. it'll definitely be worth it.
     
  18. 86chevybanshee

    86chevybanshee 1/2 ton status

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    about the flexplate issue im also going to swap in my 465/205 so what year fly wheel will fit?
     
  19. pvfjr

    pvfjr 1/2 ton status

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    I think anything 85 and earlier should fit.
     
  20. MudFrog

    MudFrog 1/2 ton status

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    I put that engine in one of my old trucks (85 scotsdale), but a mild cam and high flow oil pump in it. The thing was a great engine, especially when I replaced my worn 305 at the time.
     

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