Timing belt question

I got my timing belt replaced a couple of days ago at the local dealer. On the invoice they said most of the parts and under those parts 42-- something cc's its in the 4200's. I thought my 3.4L was something like 3300 cc's.

Whats up with the invoice

 

OP ,just wondering because mine will need changing soon...how long did it take,how much did they charge to do it? Thanks.

 

I dropped it off at 9am, they called and said it was ready around 4:30 pmsame day. Total cost with 20% coupon was $800 or so. For timing belt, cam seals, water pump, coolant, AC flush, alternator & ribbed belt, oil seals, etc.

 

Well that isn't as bad as I thought it would be.It looks like a bitch to do on your own.Thanks