CE block

[fireZ]

I looked at a 68 Z28 this morning with a CE block in it. The fellow that has the car is in his mid 60s and said the engine was replaced after the original froze and cracked one cold winter. My question is the car is a 02E car of 1968 and the CE block has a casting date of September 67 date code,so is the CE block way to early for this car?

[JohnZ]

Not necessarily - what's the block casting number?

[fireZ]

The casting #  ends in 678 as my original in my other 68 Z

[red69]

I was under the impression that CE blocks were only installed in a warrenty situation. Did dealers also install them as replacements? I'm assuming the freezing up wuold not be warrenty. Pat

[firstgenaddict]

Warranty or over the counter...

[JohnZ]

The original intent of the "CE" designation was so the accountants could keep track of the exact number of engines replaced under provisions of the 5/50 powertrain warranty vs. normal business customer-paid or over-the-counter engines, but many "CE" short-blocks (or fitted blocks) ended up going through the normal business channels, especially near the end of the liability period for the 5/50 warranty program.