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Welding cast engine block

General Tech Talk

Moderators: toaddog, TWISTY, V8Patrol, Moderators

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Posts: 1175
Joined: Wed Jul 27, 2005 10:17 pm
Location: Mirboo North

Welding cast engine block

Post by 6.5 rangie »

Need some tips on welding cast engine block (253). It has cracked at the 2 centre head bolts closest to the valley, the threaded cast has cracked right off and i have to weld it back on but i only have an Arc.
Hoping i can just heat the area and weld, any tips would be good.
Can post pics tomorrow.
Oh and engine is still in the car
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Joined: Sun Jun 12, 2005 11:00 pm
Location: Yinnar South, Vic

Post by cloughy »

In za bin it goes
Wanted: Car trailer or beaver tail truck, let me know what you got
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Post by 6.5 rangie »

Thanks Cloughy you're a great help
Posts: 48
Joined: Wed Jan 14, 2004 11:00 pm
Location: Thomastown, Vic

Re: Welding cast engine block

Post by GQPatrol V8 »

6.5 rangie wrote:Need some tips on welding cast engine block (253). It has cracked at the 2 centre head bolts closest to the valley, the threaded cast has cracked right off and i have to weld it back on but i only have an Arc.
Hoping i can just heat the area and weld, any tips would be good.
Can post pics tomorrow.
Oh and engine is still in the car
If you mean the bosses that are cast in a lifter valley have broken off this is common , they are only supposed to be torqued to a much lower tension. Late Holden V8's (VN onwards) do not even have these bolt holes drilled, They are not used at all. Go ahead and just put the heads back on and don't use those bolts.

Shane
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Location: Mirboo North

Post by 6.5 rangie »

Thats the ones
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