Coolant sealer

[fekbmax]

Not anticipating any kinda leaks but thought about using some type of sealer .
Race engine, block fill, only 1-1/2" of block will see Coolant along with heads.
Whats a good sealer to run through in anyones opinion  ?

[cammerfe]

For a lot of years, Ford put Bars Leaks in all engines before the car was started for the first time. Just the pellets, not the water-soluble oi that's in the jar/can from the auto-parts store. Maybe they still do?

KS

[jayb]

I've had good luck with Moroso Ceramic Seal.

[fastback 427]

X2 on the moroso. Sealed up a couple big leaks with it and they stayed sealed. I've heard the formula for straight water works better than the one for antifreeze.

[fekbmax]

Thanks guys..