View Poll Results: WILL MY WELDS HOLD THE CRACKS IN THE BLOCK?
YES. THE WELDS WILL HOLD
0
0%
NO. ITS GONA BUST
7
87.50%
I DONT KNOW
1
12.50%
Voters: 8. You may not vote on this poll
check this out do you think it will work?
Thread Starter
Junior Member
Joined: Jul 2006
Posts: 60
Likes: 0
From: WINDER, GEORGIA
Car: 87 IROC-Z
Engine: POS 305
Transmission: 700-R4
Axle/Gears: DUNN0 STOCK DISK BREAK 10 BOLT
check this out do you think it will work?
i got ripped off on a 350 found out it is boared .060 and can save the cylinder walls by honing it out then found 2 crackes and started welding them shut then found 2 more so i welded them shut to do you think it will hold?
just posted to get some comments and input
thanks
nick
350 blocks are hard to find around here for cheap
nick
just posted to get some comments and input
thanks
nick
350 blocks are hard to find around here for cheap
nick
Supreme Member
iTrader: (12)
Joined: Feb 2006
Posts: 1,326
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From: Massillon, Ohio
Car: 87 TA
Engine: 350
Transmission: 700r4
Axle/Gears: 2.73
not sure if it's gonna hold...never seen anyone weld a block. I think you should find a good machine shop and have it magna fluxed and dipped.
Member
Joined: Sep 2005
Posts: 140
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From: Fairchild AFB, Wa/Oviedo FL
Car: 1995 Firebird Formula
Engine: LT1
Transmission: Th350/4k stall
Axle/Gears: 10 bolt with 3.42s
i highly doubt that they will hold up. and if they do it wont be for long. i would just get another block and start over.
Thread Starter
Junior Member
Joined: Jul 2006
Posts: 60
Likes: 0
From: WINDER, GEORGIA
Car: 87 IROC-Z
Engine: POS 305
Transmission: 700-R4
Axle/Gears: DUNN0 STOCK DISK BREAK 10 BOLT
dang
no one has any faith in me
lol
i dont know if it is going to work but dont have the funds for another blo0ck right now
nick
lol
i dont know if it is going to work but dont have the funds for another blo0ck right now
nick
Member
Joined: Mar 2006
Posts: 329
Likes: 0
Car: 1987 IROC 1991 RS
Engine: 5.7 TPI 5.0 TBI
Transmission: T-5 , 700R4
Axle/Gears: 2.73 twice
You already got it down to the bare block, its not worth it to put all that back into your motor for a disappointment. Could do more damage to new parts than its worth.
Member
Joined: Sep 2003
Posts: 183
Likes: 0
From: Bucks County Pa
Car: 85 Firebird
Engine: 355 Vortec TPI
Transmission: 700r4 with Pro-Built goodies
Axle/Gears: LS1 3.42 Posi Disc
I am pretty sure that if it holds, it will not hold for long. Weld is alot stronger then the surrounding metal. If the engine were to reach operating temperature the two different kinds of metals probably will not expand at the same rate causing block fatigue or cracking. Not to mention the vibrations and harmonics traveling through an engine block. I don't think it will hold. To each their own. -Bob
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Supreme Member
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Joined: Apr 2000
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Time to start looking for another block. The 350 I picked up for 50 bucks had cracks in the lifter valley so the machine shop sold me another block for 100 bucks. Also sold them the heads off the first 350 for 50 bucks 
Supreme Member
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Joined: Jul 2004
Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
welding cast iron is very tricky, you used a mig and normal steel wire didn't you? It'll crack.
I thought you welded in the cylinders, you just did the outside of the block, and the waterjackets?? I don't think it'll be a problem there, not a high stress area, but I still don't think those welds will hold for long.
A 350 block is rare in GEORGIA??
I thought you welded in the cylinders, you just did the outside of the block, and the waterjackets?? I don't think it'll be a problem there, not a high stress area, but I still don't think those welds will hold for long.
A 350 block is rare in GEORGIA??
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