ToxicWS6

lookin at switchin to a griffin radiator, was wondering how needed the steam port was, i was going to get a welder at work to weld in a bung on it but dont think thats going to be able to be done anymore, could i just cap off the lines and be fine?

}BlueFire{

iTrader: (8)

Steam port is needed to relieve the pressure in the heads

2000PewterT/A

Do not cap off the lines, you will have a boatload of problems including over heating in the heads and air blocks in the system.

ToxicWS6

ight lol, i think im gunna tap my waterpump then for the steam port, thanks guys!

bww3588

iTrader: (49)

If you can't get it welded to the radiator for whatever reason, you can drill and tap your water pump and run that line there.

Meierznutz

iTrader: (1)

I have an LS in a Mazda Miata. I used a griffin Rad and it sits just a bit below the steam ports so I drilled the waterpump and installed a t with a plug on the top end to make filling easier. Once the rad is full I pull the plug out and the car takes almost another 1/2 gal before the bubbles stop burping out the plug's hole. Never had a cooling issue after that.
Good Luck... Chris