Do I need a Hole in my head? Techniques for Properly locating and drilling holes to mount manifolds
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- čas přidán 9. 04. 2024
- Pontiac cylinder heads are not all created equal, sometimes you need another hole in your head. Mounting exhaust manifolds and you realize the end holes aren’t there well there is a possibility they can be drilled and tapped. That us exactly what we do this go at the VVG.
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Working with your Dad. Priceless!
Indeed! Makes the adventure even better
Nice Father and Son project John!! Keep up the good work sir!!👍🏽
Thanks, will do!
Thanks for the tip Jon! Very clever using the manifold as a jig and creating bushings to center the manifold and to center and square the drill bit! Last time I took mine to a machine shop. Next time it'll be in my shop!!
Fantastic!! Nothing wrong with doing it yourself. Time involved is minimal, plus cast iron is easy to drill.
nice work guys. Great to have dad along for the ride Jon.
Always! He still has a few tricks up his sleeve to teach me.
Great tips for the DIY, I had the machine shop drill these out when they installed the hardened valve seats, no more leaky exhaust!
Right on! Cheap solution to prevent annoying exhaust leaks for sure
Pontiacs are always so fiddly. Good job Dad !
I was happy he had the time and the bushing ls already made up for this mod
Father and Son project time!!! Howdy Dad, THANK YOU for the hood tach!!!!
Thanks
Thanks and you're welcome.
Yup. I suspect on the next car in the shop we will be seeing a lot more of him
Really cool, brother playing car's with Dad and great tips 👍
Making great memories while Playing cars
Really cool having your Dad working with you. He probably forgot, more than you ever know. LOL That's what my dad used to tell me.
Having day hang out and play cars is nice,
Plus the next car in the shop is his so I bet we will be seeing a lot more of him
You always find a simple way to get things done! Nice job! Really good idea putting the tape around the bolts to center the manifold!
Glad you liked it! That was my dad’s idea and worked great.
Great tips!!
Glad you like them!
Good tips thanks👍
No problem 👍
Nice tip on keeping that bit straight and chamfering the hole. More knowledge to store in my brain for later. 👍
The more we share the better we all
Can be.
Great tip on adding the extra mount hole.
Thanks! Should help prevent annoying leaks
I forgot the reason some of them weren’t drilled and tapped. I know it used a different style manifold .
So far what I have seen the smaller valve pressed in stud heads don’t have end holes drilled out. This seems to be the trend 1970 and older. Newer heads all bets are off, some don’t even have a boss to be drilled out they are cast without the flat area. So good luck keeping header gaskets form blowing out.
would love to see how you install valley pan under intake
I will have to include that on the engine build. I already installed it.
I had a '75 350 block with 6X heads that was missing those same holes.
Odd how it seems to be hit or miss on the end bolt holes being drilled. Especially 6x heads I can’t recall any not being drilled of the ones I messed with but I totally believe it happened.
@@VinylVillageGarage
If its of any help , my 6X were from a 350 block that was casted 12/12/ 75. The engine came out of a '77 Grand Prix.
@@phillipthethird42 good to know
💪😎
Thanks for always being there buddy.
@VinylVillageGarage thank you for being you and making these awesome videos my friend
Why don't your heads have that hole from the factory? I believe mine do but I have to go back and check now. I have ordered Ram Air Long Branch Manifolds from Ram Air Restorations but I have been waiting for a very long time for them to be manufactured at the foundry. I am worried now that I won't have that hole.
Most cylinder heads have all the holes. For the most part should be fine. Later years the head isnt cast for the hole so you can’t drill it like I did in this video. If running factory log manifold ends holes were not needed, even the log style 1969 exhaust manifold doesn’t have provisions for the outer holes. I drilled them because ram air manifolds would have used all the holes.
Side note I am also on a wait list for ram air restorations been 4 months already so hopefully they can come Thru soon I will purchase another set for future use.
@@VinylVillageGarage I talked to him last week and he told me they should ship in 2 weeks, but I have been hearing that forever LOL
@@stevenpringle7813 I get a similar response “end of this month should have some”…..just not sure which month I suppose.
Zing powww
Getting it
Done!!