when did the 460 externally balanced?
Lead Driver
Joined: Mar 2000
Posts: 9,359
Likes: 1
From: Hampstead, NC
External balance was 79 and newer I believe. You can easily identify an external balance motor by looking at the spacer behind the balancer: smooth, round spacer = internal balanced; hatchet spacer = external balanced.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
Scottie, how do you know it's a 78 casting? is that what the emission tag says or are you seeing a 78 casting number? Mike is correct 79 is when they did the switch but some casting numbers look like D8TE but that number doesn't exist is why I was asking.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
Stormy, you might want to look at those motors again, they were 429s not 460s, and the 429 truck motors did have steel cranks. The 460s never had a steel crank from ford.
Last edited by monsterbaby; Nov 17, 2006 at 01:04 AM.
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Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
Aren't those truck 429 motor cranks different than a car 429? I believe the crank snout is longer and has a larger dia.
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Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
yes they are bigger diameter snout, and the dampener is a lot larger too. the main and rod journals are the same diameter though, and the snout can be turned down to passenger car size, but with the new forged cranks coming onto the market the real question is why spend the money to have it machined.
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