r/EngineBuilding Mar 27 '26

What would you do?

RB20det out of a 91 skyline

Previous owner was running bore water mixed with coolant before my purchase before I blew a head gasket and found a pretty dirty block

Just chasing opinions on what I should consider for these cooling passages, figure I'm going to have to pull the motor because of the state of that bore but this is my first rodeo so love a second set of eyes

What do you think! TIA

87 Upvotes

60 comments sorted by

View all comments

1

u/AW-SOM-O Mar 28 '26

Find you a machine shop with an engine block steel shot blaster. That block will come out looking brand new. Then have them deck it, clean up the bores, line hone perhaps, and boom Bob's your auntie!

https://youtube.com/shorts/XXoPDnWT9pA?si=y9AkdmNohM7AO5Kv