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Original Message
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| C6AE-R. The only way to go!! |
| By Tim johnson - 09/19/2002 3:10:57 PM; IP 216.222.116.195 |
Heads used on 352 and 390 engines are interchangeable.
The C6AE-R head is an outstanding cylinder head that was also standard equipment on the 66 7 Liter (428) Galaxie as well as the 66 352.
I have personally compared the C6-R head side by side with the C8OE-N Cobra Jet head. Here's what I found.
The only differences are that the intake runner on the C6-R head take about 10cc's more fluid due to the the lower angle of the intake port, and the exhaust port has a small downturned lip at the roof on the exhaust port.
So here's what I'd do to make these heads really work well for street performance. You can pick and choose as you see fit.
Pocket port the exhaust bowel. Remove the approximately 1/8" downturned lip (this will make the exhaust port like the CJ's).
Install hardened exhaust seats then fit the heads with CJ valves.
You'll end up with near CJ performance at a fraction of the price. Oh! you have the option of drilling the exhaust to convert to the 16 bolt CJ exhaust pattern for better exhaust manifold sealing.
Other neat things to do for hot street performance is to replace the rocker shaft spacer springs springs with solid spacers. Use head studs instead of the old bolts, and buy billit aluminum rocker shaft stands.
Anyway, hope that this post has been helpful!
TJ |
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