68 delta 88 455 with a C head and a E head
#1
68 delta 88 455 with a C head and a E head
I brought a 455 out of a delta 88 and it has 1 c head and 1 e head. Can I use this combination. The guy who I brought this from did drive it as a daily driver but is this a good performance combination.
#6
Joe, way back when I bought my 1970 442 as a basket case it had one C and one E head. Its been a lot of years now, but I thought the spring height was different between the two heads. Could that be true... or just cobwebs in my memory? John
#7
John, you are correct.
The C heads do not have rotating keepers (68-69)
The E heads have rotating keepers on both intake and exhaust valves. But their spring pockets are the same depth I believe (70')
The G heads have one spring pocket taller than the other if I remember correctly, and only the exhaust valve rotates. (71')
The (72') Ga heads have the rotators on both intake and exhaust again and the pockets are equal again I think. Be careful here because they may have the same casting number, but not be the same.
Someone please correct me if I am mistaken on any of this.....kinda skimming off the top of my brain right now.
Here's a pic of the e head from another thread.
208894b_20.jpg
And.... the C head.
Also,take a hard look at these #7 heads from 1971. It's easy to see the staggered valve spring pockets by looking at the valve guide bosses.
The C heads do not have rotating keepers (68-69)
The E heads have rotating keepers on both intake and exhaust valves. But their spring pockets are the same depth I believe (70')
The G heads have one spring pocket taller than the other if I remember correctly, and only the exhaust valve rotates. (71')
The (72') Ga heads have the rotators on both intake and exhaust again and the pockets are equal again I think. Be careful here because they may have the same casting number, but not be the same.
Someone please correct me if I am mistaken on any of this.....kinda skimming off the top of my brain right now.
Here's a pic of the e head from another thread.
208894b_20.jpg
And.... the C head.
Also,take a hard look at these #7 heads from 1971. It's easy to see the staggered valve spring pockets by looking at the valve guide bosses.
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