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73 4X head identification
My early 73 T/A 455 has 4X heads dated H182. Yes and? I hear you ask.
Well up to press (I have owned the bird about a year) I had assumed these to be the original large chamber 455 application heads, especially since the block is also H182 dated. However I have just found the secondary stamping on the heads to be "3", which I believe to be early 73 400 application with 98cc chambers. Am I a lucky sun of a gun or could these still be large chamber 455 heads. The identical casting date is making me doubt my findings. Any info would be greatly appreciated. John |
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