Avengeance

iTrader: (4)

Im planning on building a motor for my SS in the near future.... Ive been doing a lot of research lately.

One of the questions I have is at what point should o ringing be considered? My goals are 800+ whp..... procharged, and possibly going bigger in the future. Is o ringing at that level way too overkill? What kind of costs are associated with o ringing when building a motor?

Thanks...

lazylongboarder

iTrader: (2)

I've got similar goals for my TT 347. I'm curious about this as well, even though I think the answer will be 18-20+ psi.

Bump

Phil99vette

iTrader: (11)

@ 800HP, A Cometic + a properly machined deck and 3/4" deck head will work good.

G Engines

An o-ring is never an over kill way to seal a combustion chamber. they will support much more cylinder pressure with out failing. It normally runs about $250 to o-ring the head gaskets also cost less than a cometic gasket and can be reused if necessary. I recommend this when using more than 20 psi of boost or more than 500 hp of nitrous.

Phil99vette

iTrader: (11)

At 1200-1400 you need to have it o-ring'd. A double o-ring is the only setup that we've seen that will hold EVERYTHING you can throw at it. You will break the piston or head before the setup leaks.

EPP

iTrader: (22)

You have to figure out what your goals are, 800 to 1000 rwhp can be done with AFR heads, ARP head studs and GM MLS gaskets. Bob

jomomma

iTrader: (39)

im @ 15psi with pump gas/meth. seems ok. of course i want to turn it up with race gas to 18-20 psi. would you chance it with a setup like mine without oringing the heads? im running ported 243`s with arp studs all over.

ls1290

iTrader: (20)

Agree. The cost of doing is minimal in the grand scheme.

cjg454ss

iTrader: (27)

i would do it on any ls trying to make power. the oring is tried and true, very inexpensive and at 800hp you would never have to worry about a blown head gasket.

Coming up this spring, im going to push the stock l92 heads with a basic o ring setup to see when they push water. setup is a 400+ cubes with a 98mm.

98Z28CobraKiller

iTrader: (17)

I wouldn't go thru the trouble of oringing a stock head with a stock deck. The oring will not keep the head from flexing/lifting. Save the money on the oringing and buy a thick deck head. Then if you discover that you are having problems popping headgaskets, that's when you need the orings.

Beaflag VonRathburg

iTrader: (176)

^ The price difference between heads is still pretty large once you start pricing it all out. TEA has their service priced at $125 for both heads. That's pretty good insurance for a small amount of money.

cjg454ss

iTrader: (27)

lol your basing that on what? thick decks help but for whats he is doing i wouldnt WASTE the money. I personally have run 25+psi with a pt88mm on a 370 with the block oringed. standard arp studs, nothing special. not one single sign of pushing water either.