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Mopar Steve · 03-29-2008, 10:04 PM

The '68 Road Runner 383 had 440 internals. The 906 heads have nicer ports, but have open chambers. The '66 383 516's are closed chamber heads.

cyclecyko, Are you going to run the 325 hp combo in your wagon?

03-29-2008, 10:04 PM	#4
Mopar Steve Junior Member Join Date: Mar 2008 Location: New Castle, PA Posts: 92 Likes: 0 Liked 1 Time in 1 Post	Re: 66 coronet wagon stocker The '68 Road Runner 383 had 440 internals. The 906 heads have nicer ports, but have open chambers. The '66 383 516's are closed chamber heads. cyclecyko, Are you going to run the 325 hp combo in your wagon?