I believe the 6v optima has around 1000 CCA. Mine has 800+ so they must have improved it since I bought mine. One word of caution is don't let it run down. I left my dome light on for more than a week. The battery wasn't completely dead but wouldn't turn fast enough to fire the engine. It was dead enough that when I charged it back up it kept trying to pull so many amps it kept tripping the circuit breaker on my 10 amp charger. I eventually got it charged but it was a bit of a hassle. If you have access to a high output commercial grade charger it might not be an issue.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.