I have a rebuilt 56 235 in my 54 3/4 ton. It has hydraulic lifters. My question is this. Do you need to warm the motor when you live in Az. with 85 degree mornings? The lifters will quiet down in 5 to 6 blocks. We have about 3,000 miles on the truck. It drove with no problems from Missouri to Arizona in Feb. The lifters have never changed their clicking duration in the 3,000 miles.
Thanks
Sharon