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#1 |
Registered User
Join Date: Jan 2011
Location: North little Rock, Arkansas
Posts: 471
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Need some help! cracked blocked
I recently took down my 250 and discovered a crack
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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 ![]() |
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#2 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Need some help! cracked blocked
That block should be in the scrap pile. Matching numbers or not. It is not useable.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#3 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Need some help! cracked blocked
Is there even a matching number on engines for these trucks?
Repairing the crack makes the subject moot anyway. Think about it, if you were in the market and you saw the block had been repaired, would you be concerned? I know I would. As cableguy mentioned, it should be scrapped. Primarily because you don't know what caused that crack and there may be other weak or weakened areas in the block.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#4 |
Account Suspended
Join Date: Oct 2012
Location: phx, az
Posts: 868
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Re: Need some help! cracked blocked
it could be repaired. the loaction it is in inst 'critical' like next to acylinder.
you could have it welded up, and remaching it and never know it was there. but what cause it. thats my concern. over heating? shouldnt be too hard to find a nother 6'er.. |
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#5 |
Registered User
Join Date: Jan 2011
Location: North little Rock, Arkansas
Posts: 471
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Re: Need some help! cracked blocked
i`ll just get a new long block. thank you for the input, everyone on this site has saved my but several times. Still learning ins and outs of it all.
__________________
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 ![]() |
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#6 |
Registered User
Join Date: Jul 2010
Location: MD
Posts: 1,937
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Re: Need some help! cracked blocked
That block could be saved but you are better going with your long block. Best of luck!
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1969 c-10 Step Side Long Bed. I-6 250cid = ![]() |
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#7 |
Registered User
Join Date: Dec 2008
Location: NW-Ohio
Posts: 2,525
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Re: Need some help! cracked blocked
smack that corner area really hard, dead flat with a 5lb hammer, if you don't notice any change, its run/fix-able....
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#8 |
Registered User
![]() Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Re: Need some help! cracked blocked
I get the idea of keeping the original engine with the truck so here is what I would do.
1) Keep the engine (block) and set it aside in storage for your own satisfaction, reference and bench racing 'chat'... or for others. 2) Get another block and build it up into a great runner and put that in the truck to keep yourself on the road. (personally I would add a touch more performance to the new/next 6 cylinder...with a bit of a cam and some headwork, but thats just me ![]() You will always be able to assert that you have the original engine for the truck....just not currently installed in favor of a current better unit. (note: nobody really gets too tied up into the numbers matching element with these trucks generally speaking due to the fact that GM did not stamp the blocks with the VIN until the early mid 70's...so 'true' numbers matching is always open to interpretation..sometimes) My two bits. ![]() Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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#9 |
Registered User
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
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Re: Need some help! cracked blocked
Junk.
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'77 K35 - 454, SM465/NP205, 4.56 D60/14bFF |
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#10 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,939
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Re: Need some help! cracked blocked
I've said it before... "Numbers Matching" only counts with Corvettes and Chevelles. The original engine in a truck will bring no resale value.
For one, finding a welder capable to weld cast iron correctly might not be very easy. The cost will probably outweigh the repair. Find a new block, or go with the long block you said he local parts store can get you. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#11 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Need some help! cracked blocked
Quote:
I wasn't aware of Chevelles having matching numbers but I do know Corvettes had the last few numbers of the vin number stamped on the block - I have one on my engine stand.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#12 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,525
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Re: Need some help! cracked blocked
If it were mine, I would have no problem having that welded up and putting an insert for the head bolt
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#13 | |
Registered User
Join Date: Jan 2011
Location: North little Rock, Arkansas
Posts: 471
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Re: Need some help! cracked blocked
Quote:
__________________
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 ![]() |
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#14 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: Need some help! cracked blocked
Good time to upgrade to a 292? It is my understanding, that the tall deck blocks didnt have that issue (read from Leo's book of inlines). Bigger is also better
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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250, block, chevy, crack |
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