455 HO Engine WC Code 4Spd

[68bird400HO]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: The Boss</div><div class="ubbcode-body">Likely came out of a Formula - the WC code was the Ram Air code which was also used in the GTO. Although they would occasionally show up in TA's the TA was not considered a Ram Air application and had different carb numbers as well. </div></div>

Actually, that is not correct. Ram-Air and non-Ram-Air used the same block codes. In 71 there were 3 455HO block codes, WC (455HO with M22), WL (455HO with 3-speed manual (yes there were a few built)), and YE (455HO with Th400). In 72 they had 4 455HO block codes, an auto and manual trans version for each &quot;with&quot; and &quot;without&quot; unitized distributor.