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Here's what the heads are-3904390 1966-67 396/427 Closed . 325, 350 L-34/L-35 390, 400, L-36/L-68 98.4cc. Are these heads decent?
Couldn't read the bellhousing numbers but I found the numbers on the passenger side of the block, under the alternator. That number is T1100CXX, plus some smaller numbers. Can the block be identified with this number?
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The BBc heads are not a bad head for a closed chamber head, i had a set of them. They come with small valves too, i had 2.19/1.88 put in the set i had. Better power gains from an open chamber set of heads.
I have the same heads on my motor and were told they were pretty good I had 2/19s and 1/88s put in too also had thm decked .020 and opened up slightly then put in all ss valves was told they were gonna make some pretty good power . planning on getting a set of the proform aluminum next year when I stroke the motor to 505