LT1/4 timing chain slack

[Dr. Evil]

In the middle of a elec water pump install and pulled the timing cover to remove the water pump drive. The current LT4 chain has roughly 30k on it. If I rotate the crank to pull the slack out of the timing chain on the pull side I have right at 1/2" of slack. About every SBC has some slack in it but I couldnt find a spec that specifies how much is too much. Does this seem excessive?

[vetteman9368]

Russ, when i did the electric pump on my LT-1 i did a regular (non LT-1, hyd roller) Cloyes double roller chain as i noticed the same thing you did

[1981Z06Vette]

Originally Posted by vetteman9368

Russ, when i did the electric pump on my LT-1 i did a regular (non LT-1, hyd roller) Cloyes double roller chain as i noticed the same thing you did

I used the same chain...much cheaper than the alternatives.