Drilling steam holes in sbc 400 heads

Got some holes to drill but this video starts outside on a morning walk with Sullivan the shop dog.

[@CK-mf6du]

Lol fun fact, I said oh my gosh a split second before you when that piece dropped lol. Great minds think alike 😂. And thank you for the information BTW! I'm researching this for a stockish/mild built 400. Not a fan of the 1.72" intake valves stock, planning on different heads.

[@wheels2199]

I just found your channel and I’m glad I did. Your shop is awesome and very well equipped, and the most important thing in the shop is the dog. You have exactly what I am in the process of building, a fully equipped shop. I want to be able to handle anything that comes through the door, that is my goal. Now add the puppy into it and it doesn’t get any better than that. Great video and give that little guy a belly rub from me!! Eddie wheels 😬🧑🏻‍🦽👍 From NJ.

[@bcbloc02]

I am suspicious that isn't the first time that level has been in the floor! lol Glad your shop supervisor is feeling better! Old Baily feeling rough after a head over heels trip down the stairs the other day. Poor old feller.

[@kooldoozer]

I dig that air float table. Never seen that before. Now I want one LOL ! ! !

[@josephfine3394]

Never knew the one row was angled. Nice tutorial, good clean job. Best part of the video is Sully! What a good boy!!

[@dgc940]

So Ive ran them here in Extremely HOT Texas with and without drilling them with zero issues? The new dart 400 block also dont have them and its Siamese cylinder's too? Thats on iron heads. Looks like the aluminum heads would work better anyway at getting rid of the heat?

[@otisbailey5455]

Thanks for the tutorial.

[@tkovac4912]

I've wondered why the top row is necessary. The bottom makes sense since the bores are siamesed and air can definitely get trapped under there as the water jacket is filled. But wouldn't the top side fill normally to the top of the block deck just like any other sbc without issue?

[@carltauber2939]

Great to see Sully back in the water, sad to see him riding in the canoe instead of swimming along side. Do those holes in the heads communicate with matching holes into the water jacket of the block?

[@TrPrecisionMachining]

very good job

[@scotts439]

Beautiful dog! Hey how are you anchoring the head down at an angle like that? I am trying to figure out some new clamping methods for my S&G machine. could you show the bottom piece?

[@bobwilson758]

Hand drilled my cyl. Heads 3/16 “. Tits - Never a bit of trouble . 1.94 intake valve

[@clemzahrobsky2137]

GM racing said if not operated under 3000 RPMS no need for the steam holes

[@prevost8686]

Why are the steam holes on the intake side drilled at angle?

[@rayhuggart5214]

Good to keep your dog away from metal chips and shavings. A friend of mine lost a dog because it ate a bunch of stell filings. The cutting oil they used had animal fat in it and the dog couldn't resist. Poor thing.

[@matsandersen6119]

sbc 400" heads already have the holes

[@hilltopmachineworks2131]

My Shepherd and chow like water. My Husky Shepherd mix doesn't. No water source close by so we just fill up a plastic kidde pool.

[@joshuagarvey9362]

Nice morning walking through A weed farm lol.

[@nextgen1939]

Nice kwik way head shop.

[@j.campbellscmb1740]

FNG here, what is the purpose of the steam hole?