Quote:
Originally Posted by JJDeville
Yes, the one I have seen online had the same modifications. I read an article from back in the day where the were building all of the 455 engine identical to each other. They sourced used engines and bored them to 462 for a basically new engine. The article stated that they also used a specific head for 9.2 compression ratio and enlarged the valves to 1.77. My car has 6X heads though I don’t know if they are 6X-4 or 6X-8.
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My bet is 6X-8's if they went to trouble of zero decking the block
Most likely 6X-4's if not decked. Might ck the secondary code on the 6X's.