621 bellhousing

[Rixls6]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rixls6</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">And Truck application differences too.
</div></div>
But the truck bellhousing isn't a 621. </div></div>


Sure it is.
GMC &amp; Chevrolet G-10 &amp; G-20 series trucks with 283cid. &amp; 307cid. used it,starting in 1967 up to I think 1978 models.
After that,the #464697 bellhousing superseded it. </div></div>

You're saying that the bellhousing pictured on the left, with the different bulged area at the bottom has the same casting number on it as the one on the right???