Hemmings Motor News Blog Blog

Hemmings Motor News Blog

Hemmings Motor News has been around since 1954. We're proud of our heritage, but we're also more than the Hemmings full of classifieds that your father subscribed to. Aside from new editorial content every month in Hemmings, we have three monthly magazines: Hemmings Muscle Machines, Hemmings Classic Car and Hemmings Sports and Exotic Car.

While our editors traverse the country to find the best content for those magazines, we find other oddities related to the old-car hobby that we really had no place for - until now. With this blog, we're giving you a behind-the-scenes look at what we see and what we do during the course of putting out some of the finest automotive magazines you'll ever read.

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Repairing Cracked Blocks and Heads

Posted September 20, 2010 12:47 PM by dstrohl

"One of the most frustrating problems encountered during the restoration or repair of a vintage automobile is scarcity of engine parts. When a vehicle has been out of production for a decade or more, there are only so many blocks, crankshafts, connecting rods and cylinder heads remaining in existence. And like land, they aren't going to make any more.

But if you're the proud owner of a head or block that seems usable as little else but a door stop or oversized paperweight, you may be able to circumvent the time, effort and expense of locating a replacement."

The 1980s seem to have been a great time for DIY because it appears DIYers never had any idea they couldn't do something. Cracked block or head? I'll just weld it up. But it's made of cast-iron? Okay, so I'll weld it up at face-melting temperatures. Dave Emanuel showed us how race engine builder Al Dicksen did it in an article from December 1983.

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Re: Repairing Cracked Blocks and Heads

09/21/2010 2:58 PM

We used to weld cast iron on tractors a lot back in the late 60's and early 70's on the farm. The trick was to chase the crack quickly with a low temp rod. Ofter you would create new, smaller spiderweb cracks off of the original crack but when you got one closed up to just at it's end, you would then stick the welding rod straight into the end of the crack and break it off. Grind her down gently and paint it. Almost good as new.

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Re: Repairing Cracked Blocks and Heads

09/22/2010 1:41 PM

Oops, sorry. I thought this was about the mods.

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#3
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Repairing Cracked Blocks and Heads

09/22/2010 5:03 PM

Ooooh! Ouch. That's harsh!

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