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treessavoy · 01-02-2013, 07:50 PM

Tom,

The 915 head is a 1967 year only, the 516 head was produced for 383, 413, and 426W's from 1963 to 1967.

There are two types of 915's; one with the 1.60 exhaust valve and one with the 1.74 exhaust valve.

The 1967 915 head was designed for the GTX/RT 440ci only, all other big blocks that year used the 516 head.

JimR

01-02-2013, 07:50 PM	#9
treessavoy VIP Member Join Date: Feb 2009 Location: Dunnellon,FL Posts: 1,103 Likes: 0 Liked 4 Times in 4 Posts	Re: 66 Dodge 383/325/290 any good for SS? Tom, The 915 head is a 1967 year only, the 516 head was produced for 383, 413, and 426W's from 1963 to 1967. There are two types of 915's; one with the 1.60 exhaust valve and one with the 1.74 exhaust valve. The 1967 915 head was designed for the GTX/RT 440ci only, all other big blocks that year used the 516 head. JimR __________________ Jim Rountree