[Sapphire Shelby]

Hello all,

Can someone tell me what the stock combustion chamber size is on a 69 302 head? I have looked all over the head for a casting number but have been unable to find one. The only thing that I have found is a 302 with a 69 cast underneath it and what I believe to be only a partial casting number of C90. This is why I am assuming it to be a 69 casting. Any help would be appreciated.

Thanks

[65BlueHorse]

All i can find is 69 truck heads for a 302 casting number C9TE-C which were 69cc. '69 boss 302 heads cast number C9ZE had 61-64cc chambers and '69 351 heads cast number C9OE were 60cc

[Sapphire Shelby]

Thanks for the help 65bluehorse. I am sure that the casting is a C9O however, so I don't think the combustion chambers are quite 69cc.

[rocky289]

If all else fails.
Block up the ports & plug hole.
Fill the chamber with liquid of your choice.
Measure the amount of liquid used.

[72 fastback]

They are 58.2 ccs if they dooe on them. I had two sets and recently sold one. They came originally with 1.78I and 1.45e valves.

[Sapphire Shelby]

Originally Posted by 65BlueHorse

All i can find is 69 truck heads for a 302 casting number C9TE-C which were 69cc. '69 boss 302 heads cast number C9ZE had 61-64cc chambers and '69 351 heads cast number C9OE were 60cc

65BlueHorse,

Thanks for the updated info. I, too, did some research on my heads. Like I previously stated the heads have 302 with a 69 cast into them. There is also a 302 cast into the top side of the head by the valves. Now here is where things get funny. I found the same info you did about the 69 351 heads with the C9OE. The thing that is funny is that upon looking better I found the exact same C9OE casting on my heads. I made sure to completely clean the casting number. I verified that the bottom loop on the nine didn't actually make a full circle creating an eight, it is definitely a nine. I can not find any reference to a 302 C9OE head at all, even though the heads clearly have 302 cast into them. Can anyone shed some light onto this?

[Ivy66GT]

1969 cars used a 302 head C9OE-E for a 2V 302 with 9.5:1 compression. Combustion chamber volume was 56.7-59.7cc. The similar truck heads, C9TE-C were marked with a T in the rocker arm area, were the same combustion shape and volume but were not used on cars.

[Sapphire Shelby]

Originally Posted by Ivy66GT

1969 cars used a 302 head C9OE-E for a 2V 302 with 9.5:1 compression. Combustion chamber volume was 56.7-59.7cc. The similar truck heads, C9TE-C were marked with a T in the rocker arm area, were the same combustion shape and volume but were not used on cars.

Thanks for the info Ivy66GT