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Old 02-12-2024, 02:13 PM
MDSHARK81 MDSHARK81 is offline
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Default Shop to Weld repair crack in Cast Iron Exhaust Manifold in NJ/NY/PA area?

Hello Guys, just bead blasted my Pass side exhaust manifold (original to car), and found a crack. I’m looking to have it repaired. Looking for a shop somewhat local so I can drop off myself (no shipping)? Second question is how much should I expect to pay for the repair?

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Old 02-13-2024, 01:40 PM
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Formulabruce Formulabruce is offline
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This a R/A manifold? If so, some areas will re crack.
To weld cast Iron, first it must be heated up a lot, holes drilled at each end, and a "V" in the actual crack.
If its Not a R/A manifold, you may be able to find a nice replacement.
I have charged $100 for a correct small crack repair, more for bigger and more complicated.
I would assume a Engine rebuild shop could handle this.

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Old 02-13-2024, 02:45 PM
MDSHARK81 MDSHARK81 is offline
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Yes 455HO or RA IV manifold. I will ask local machine shops. Thanks for the ballpark on price, so I know what I’m looking at.

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Old 02-13-2024, 07:29 PM
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Norwood Norwood is offline
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You find a competent welder to do it for 100 I’d say you should jump on it before he changes his mind.

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Old 02-13-2024, 08:13 PM
tom s tom s is offline
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Check with a local dsl machine shop,they seem to do a lot of cast iron welding.Tom

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Old 02-15-2024, 01:27 AM
Baron Von Zeppelin Baron Von Zeppelin is offline
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Google "furnace welding" or cast iron welding in your area.

Might have to go abroad and search further out.
There is usually a shop in most states that repairs cracked blocks or cracked heads.
After furnace welding you might need to resurface the manifold gasket flanges to get re-trued.
Might as well do them both if they are off the car.

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