...and I know it's a half hour job. I've done it several times myself, it's really not that hard. I took just the head in to them a year ago to replace all of the valves and seats. That was the only part of the rebuild I was unsure of and wanted done right. Well, they didn't put a valve in right and it started hard from then on. More on that mistake later, but first: How long should it take to shim 1 valve and put the cam back in 30m check for compression 10m pull the head 30m replace all 3 intake valves 1 hr put it all back together 1 hr That's how long I think it would take if I did it. Does that sound about right? ~3 hours to replace the intake valves?