Originally Posted by Angrybird 12
The original design for the Z/28 used the smallest V8 available, it was a high revving small 302 CI 5L engine. Not a 427. If they ever bring out a new Z/28, I bet it will use the new Corvette 5.5L engine.
The original Z/28 used an engine that qualified for Trans Am racing that had a 5 liter displacement cap. No other reason for the 302 than that.
A modern day Z/28 has no such cap so why limit it?
I don't think the 5.5L is anything other than a racing engine which also is limited in displacement.