Which head bolts enter a water passage?

Gearbanger 101 said:

Really not a big deal unless he's planning to run a pile of cylinder pressure, or has heat cycled them a couple of times already. I've used TTY bolts more than once plenty of times in the past with ZERO issue.

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I'm not sure whats hes done either but if it was me i would just buy new ones ! my philosophy is do it once do it right! not that your idea wouldn't work or wont work! but for myself id rather do it the way Ive been taught and not have to do it over again! just piece of mind i guess and to each his or her own! it was just another idea among many others to toss around!

If the headbolts are not arps or the equivalent, they should be.

Matt

I have to disagree, TTY bolts don't need to be replaced if you never started the motor. The flex issue the bolts go through is due to heating and cooling. If you never started the motor, you can remove them and retourque them with no problems.

I know engine builders who told me that when I went through a similar issue. One of the heads I was originally going to use was decked too far so the intake wouldn't bolt down. I had a good engine builder go over another set of heads for me and I asked him this exact question. He told me to get new head gaskets, but because the motor was never started, I could reuse the bolts with no problems. Two years of daily driving, 20+ passes on motor, and 10+ passes on spray I have no problems.

I've had problems with non torque to yield factory head bolts and had problems.... IMO factory head bolts are only good for their first use. ARP ones are CHEAP insurance so I see no need to skimp on that.

BTW, there are 5 head bolts on the bottom, 5 on the top... Not 4.

Always good to check, instead of having a milkshake for the oil! I used Permatex blue on all of my studs, not just the lowers.

Use ARP thread sealer (or similar), or Black RTV for the lower outside bolts.

TTY bolts get a bad rep. They can be reused without an issue. Lots of "backyard" builds are done this way without issues.

^^^I agree completely.