f135

Does anybody know if all 4 bolts holes for the water pump are through holes into the coolant passage? The top driver side on mine snapped and need to know how to drill through before re-tapping.

What's the best ( fit and function)Fan to replace the standard 4 Blade Steel Fan?

Cross posting from the 20 series section https://forum.ih8mud.com/threads/early-f135-cam-rocker-bolts.1324507/

Working on reassembling the early (1960) F135 engine for the FJ28 “Lara” project and found one of the rockers cracked and some bolts stripped. The rockers are extra tall, almost 3”. I’m not sure how late they made the engines like that, but mid-60s at least were shorter. Bolts are about 5.75”...

$150 plus the ride from Burbank.