i just had the motor rebuilt and im wondering does in make a difference to use brass or steel freeze plugs in the motor thanks james

They need to be brass for marine use.

What boat teck said, steel will go away fast.

James,
I always use brass but ... if the engine is a closed system with antifreeze, it should not make a difference. If it is "raw" water cooled then it most certainly needs brass.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

Thanks Again

I even run brass in the race car no antifreeze.