750 crank welding with pics

[racer7x]

Here are 2 pics of where 750 cranks are to be welded...

[Lancealoft]

Why do you weld the cranks? :/

[BF!]

So they don't get out of "Phaze" ie:bend,twist,rotate

[spokewheel]

when the gear on the crank shaft twists at what crank degree does it need to be set at or where should the conecting rods need to be set so it will work again.

[opsled]

On a stock engine the # 3-4 cylinders should be exactly 90* off from the # 1-2 cylinders. When veiwed from the recoil end of the crank with the # 1 cylinder's rod pin at 12:00 # 2 will be at 6:00, # 3 will be at 3:00 and # 4 will be at 9:00. On the 180'd engines I have seen 1 and 4 will run together and 2-3 will do the same. I guess they can also be set to run 1-3 and 2-4 together in 180'd configuration but I havn't seen any done that way. This is not something that should be done by someone that isn't qualified and doesn't have the proper equipment. This is a job for a GOOD!! crankshop to do.

opsled