jclayc

iTrader: (8)

For those of you running aftermarket heads, many (like Trick Flow) don't come with steam holes for venting. Did you drill and tap them to re-establish the vents? Did you leave them out and not worry about it? I understand the function of the steam vents is to allow air out of the system at the highest point (the heads) and prevent localized overheating but I also worry about blowing out head gaskets if the block is set up for steam vents but the heads are not.

vmapper

iTrader: (8)

Drill Tap all four corners on AFR heads.

jclayc

iTrader: (8)

just got my engine back and, contrary to what the Trick Flow site says, they do have steam holes on all 4 corners. I'm going to give a -4 AN setup a try: http://www.ebay.com/itm/141063124830

AAIIIC

iTrader: (19)

C&R has an -AN vent kit for that same price on Summit. Not that it's a terribly complicated thing to make, so the generic ebay one might be fine, but I just figured I'd mention it since C&R makes good stuff.

I just found that the other day and have been debating adding that sort of setup to my car.