New to Big Blocks

yes, but you need to pull the oil pump driveshaft as the gear is part of it and use a priming tool/shaft which has no gear.
neil.
yes the below are 383 but the idea's the same....
driveshaft
https://www.summitracing.com/search...ily/mopar-big-block-b/drive-gear-included/yespriming tool
https://www.summitracing.com/search...Ascending&keyword=mopar oil pump priming tool