Is it acceptable practice to weld on a crank to add weight?

probably has to be done in a very specific fashion and then rebalanced. But I don't know jack...so wait for a response from someone who does

The usual way to add weight is drill a hole and add mallory metal and then weld the plug in

be sure they put the Mallory in the SIDE of the counterweight and not on the OD.
KS

I've seen huge amounts of weld on counterweights. Pretty ugly but probably worked OK. Things are much prettier and cleaner now..

Barry Rabotnick
Survivalmotorsports.com

We balanced the cast 390 crank to work with heavy TRWs and CJ rods on the original 434 version of my motor

Honestly, if you can make up the weight with weld, there isnt anything wrong with it. Like Barry said though, it can look ugly to people who dont know why its there.

The problem is if you need a lot of weight, the weld wont do it.


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- 70 Fastback Mustang, 489 cid FE, TKO-600 5 speed, 3.70 9 inch
- 71 F100 shortbed 4x4, 397 cid FE, headers, Street Dominator, 280H, 5 lug Dana 60, 4 speed

I always wondered how/why Mallory metal was used.