DSRCAM

iTrader: (3)

ok im installing my heads this afternoon and was wonderin if there's anything i can use to clean the bolts with, i did it the day i took the heads of but that was like seven months ago and it didnt seem like there was a whole lot in there... thanks for the help in advance...

NHRAFORMULA00

iTrader: (2)

get a cheap air blower like under 10$ at meanards with a long nozzle and blow it out.the kind that will go all the way to the bottom of the hole.

69LT1Bird

iTrader: (1)

Brake cleaner and a shop vac. Use the vac first, clean hole with brake clean and repeat. The brake clean will evaporate when all of the coolant is gone.

andrew69_04

iTrader: (148)

Arent LS1 head bolts torque to yield?? if they are you better not use your old ones back. go buy some new ones so you dont run into other problems.

ss1129

iTrader: (16)

I ducttaped a straw to the shop vac tube and used that to suck everything out.

raven_450

iTrader: (3)

+1 this method worked well for me aswell

GuitsBoy

iTrader: (4)

If the coolant has dried or caked up, you might want to run a thread chase or tap to clean teh threads. You can make one out of an old head bolt by notching down one side.

After that, maybe stray out with brake cleaner to get rid of any solids in there. Then do the shop vac + drinking straw trick to empty them out.

CodeName Z06

You could run shop towels down the hole to soak up the coolant if you dont have a shop vac