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Old 01-29-2013, 12:34 AM   #1
rollin thunder
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250 inline six

Hey everyone. I am going to get a 250 l6 long block to replace original motor and just reuse tinwork and what not from old engine and i was considering the part store Autozone or orielly`s seeing as its more cost effective and only place nearby to get motors. unless order them online. But i don`t know if its worth getting them what are they like? anyone know how good these motors are? etc... thanks in advance and if you have advice for break in period feel free to share! really looming marshall 250 with integrated head from autozone its cheaper and orielly`s doesnt have integrated head
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Old 01-29-2013, 01:07 AM   #2
meatwagon83
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Re: 250 inline six

can you get the 292? same motor longer stroke, longer stroke= more torque
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Old 01-29-2013, 02:25 AM   #3
rollin thunder
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Re: 250 inline six

hmm... will have to check tomorrow. i will get back to ya
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1984 Chevy C10 short bed
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Old 01-29-2013, 03:45 AM   #4
cory d
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Re: 250 inline six

many of these got swapped out for small blocks and tossed in the junk pile but they are in no way a bad engine. depending on your gearing you may get 18-20MPG out of it and with a few upgrades they can be a sweet little engine. if you do plan on building it up, i would look for one without integrated heads (pre 1977)
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Old 01-29-2013, 09:28 AM   #5
meatwagon83
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Re: 250 inline six

clifford performance for heads ,cams, intakes etc,etc
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Old 01-30-2013, 06:43 PM   #6
rollin thunder
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Re: 250 inline six

WILL have to stroll on over to clifford then and check em out. i can get the 292 but no decision just yet maybe by end of the week. and cory d, ive heard that but no plans to build it up or anything.. a bit boring sounding but i`m perfectly fine with how it comes. idk tho gear ratio will have to do some checking buts its a 3 on the tree and seems to have a fairly low geared rear end
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1984 Chevy C10 short bed
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Old 01-30-2013, 11:28 PM   #7
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Re: 250 inline six

If you do go 292 be advised it doesn't use the same size lower motor mounts on the crossmember as the 250... one of them is taller, so you will need to change that mount over.
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Old 01-30-2013, 11:31 PM   #8
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Re: 250 inline six

Also while I'm at it, I think the alternator bracket is different as well...
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Old 01-31-2013, 12:53 AM   #9
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Re: 250 inline six

I'm still rocking the OG Integrated head 250 in my '78. I bought some nord-loc nuts to solve my blowing out exhaust gasket problem. Honestly, I would prefer a non integrated head 250, but the engine runs ok. Mine is a short bed step side with 3.73's in the back and a T5 trans. It's not bad...I really don't use it as a truck, except for the occaisionally helping a friend or family member move. I think I get 18 mpg on the hwy which is damn good for an old heavy chevy. With the old 3 spd, I think the best I ever got was 13mpg.
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Old 01-31-2013, 02:31 AM   #10
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Re: 250 inline six

i bet its fun with the 3.73s and T5. most came with 2.73s or 3.08 which didnt help
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Old 01-31-2013, 09:30 PM   #11
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Re: 250 inline six

sounds like a cool rig. lilpoindexter, and 79 silverado i`m just gonna 250 and if i want something bigger later i will, that way i dont have the added headache something not bolting up right. thanks for all the input guys. ive also heard the new casting of the integrated head are not so prone to cracking as the original gm casting. ( correct me if i`m wrong just what i have heard)
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1984 Chevy C10 short bed
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Last edited by rollin thunder; 01-31-2013 at 09:40 PM.
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Old 01-31-2013, 11:41 PM   #12
big10ratrod77
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Re: 250 inline six

check out my build thread man im building a hi performance 250 to go in my 79 http://67-72chevytrucks.com/vboard/s...d.php?t=418493

might give you some ideas for your truck, good luck bud
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77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin
79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s
81 mercedes 300d 25 MPG
77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded"
73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091
'77 chevy trucks. built to stay tough.
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Old 02-01-2013, 12:16 AM   #13
rollin thunder
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Re: 250 inline six

Quote:
Originally Posted by big10ratrod77 View Post
check out my build thread man im building a hi performance 250 to go in my 79 http://67-72chevytrucks.com/vboard/s...d.php?t=418493

might give you some ideas for your truck, good luck bud
Love the truck!!!! definitely got my brain to throw off the dust and start working
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My build Lil` Red http://67-72chevytrucks.com/vboard/s...d.php?t=551373
1984 Chevy C10 short bed
2001 Chevy Impala police cruiser
2001 Chevy Silverado 1500 Z71 4wd extended cab dd
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Old 02-06-2013, 10:55 PM   #14
big10ratrod77
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Re: 250 inline six

im glad it motivated you man if you have any questions jus pm me
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77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin
79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s
81 mercedes 300d 25 MPG
77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded"
73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091
'77 chevy trucks. built to stay tough.
life is short build a hot rod
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Old 02-06-2013, 11:38 PM   #15
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Re: 250 inline six

I had a 292 in one of my old trucks. I would have that motor over a small v8 any day of the week. They run smooth as silk, monster torque, and will haul ass. I miss that truck. My 4x4 had a 250 in it when I got it. It was hooked to a sm465 and 4.10's.
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