Original Message
Measure the bore and stroke
By Royce P - 12/22/2005 6:02:20 AM; IP 207.69.139.140
there really is no easier way to determine if you have a 390 or not. Any year 390 block is basically identical specification wise and any of them will perform equally well.

The heads on your car were originally either C7AE-A casting number between the spark plugs or C6AE-R. These are extremely common at any junk yard in the southwest United States. Expect to pay $50 - $100 for a pair of rebuildable cores. They come drilled for 8 or 14 bolts on the exhaust side. Don't worry about which you find. Any machinist can drill them if needed. Find the best set of heads that need the least machine work and go from there.

Exhaust manifolds for your application sell on Ebay daily for $100 - $200 depending on condition.

Royce
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Collapse <a href=../ForumFE/reply.aspx?ID=26467&Reply=26467><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor26467" onclick="return false;">67 390 GT Mustang</a>&nbsp;-- <font color=#0000ff>WACO, <i>12/21/2005</i></font><script type="text/javascript">
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 67 390 GT Mustang -- WACO, 12/21/2005
Measure the bore and stroke -- Royce P, 12/22/2005
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