840 Head Question

[jfkheat]

I recently bought a set of 840 heads. What all engines were these used on? Are there dates that are more desirable than others? These are dated c 11 9 and c 24 9.
Thanks, James

[Hotrodpaul]

Those are nice dates for my 04C build L-78 396 Camaro. I have a freshly rebuilt 840 (Dec 68) and 291 (Aug 69) set of heads with new valves, springs, etc. Would you like to trade your heads. Let me know. Thanks,

Paul
713-306-1892

[JQ]

[ QUOTE ]
I recently bought a set of 840 heads. What all engines were these used on? Are there dates that are more desirable than others? These are dated c 11 9 and c 24 9.
Thanks, James

[/ QUOTE ] 840's came on late 67 through 69 375hp/396's, 435hp/427's (Corvette), and 425hp/427 equipped cars...