How we rebuilt our Buick Nailhead V-8 engine from rusty to roaring | Redline Rebuild Explained S3E3



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    Our 401 Buick Nailhead V-8 rebuild project was quite an ordeal. Many of you have followed along with our Redline Updates and already know a lot of the ins and outs of the problems we've had with this build. But, as we always do, Davin and Ben sit down to discuss the project as a whole, from dragging it out of field to putting it on the engine test stand and firing it up for the first time. If we didn't answer your questions in the video, post them in the comments and we'll do our best to respond!
    #RedlineRebuilds #NeverStopDriving #RedlineRebuildsBuickNailhead

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    1. Aaron

      Brilliant production. I loved that car but I seem to like rust more than solid metal. I enjoyed the walk through and talking about details that didn’t fit into the other episodes. Thank you so much for all the time and passion you put into your work

    2. Mouse Killaz

      I had 66, it would smoke the big ol tires until I threw a rod.

    3. jw '46


    4. Tom D

      Anyone else wearing headphones almost crap themselves when Davin sneezed at 42:20?

    5. Renato Medeiros

      usually how much does it take to fully restore such an engine?

    6. Jason Petrou

      You guys... I love this format!

    7. Landon Worrell


    8. Soni‘s Garage


    9. Just A Guy

      Fantastic video! Congratulations on the final build, you guys are great!

    10. fastyzzzff

      Loved followed it all cheers sir!

    11. Mike and Blaze

      Excellent video!! Thank you Davin and Ben for the walk through.

    12. billiondollardan

      The content Hagerty is publishing on DE-news has been fantastic. I love watching everything Davin does too

    13. Werewolf486

      Mine and my wife's question is where are you doing these rebuilds? Town and State?

    14. Scott Snider

      You guys should do a Ford FE. I would love to see that

    15. William Kiene

      Funny how GM had so many different V8 motors in the 1950s and 1960s? I guess they were experimenting a lot back then. This is a real good video channel......thanks everyone. Glad you saved one of these old motors.

    16. Raymond J Lawson III

      Did I miss something? Cause nobody seems to be asking. What're you gonna do with it? I'm thinkin' it's not goin' back in that old Wildcat. Seems like a shame at this point to stick it on a shelf.

    17. Muhammad Aminz

      what happen to the chasis if you just rebuild the engine??it's go to the junkyard or somebody take it to be a part car??

    18. jack wright

      Y'all should build a Ford 460. Hell, I would send y'all mine, as long as you send it back in working order. lol

    19. rafe33174

      Nice job but that guy touching the computer back and forth all the time ruined the video

    20. Jnl Jnl

      Interisting side note. When building a high rpm engine they dont go for round on the rod big end . they want it ovaled to where the hole is wider than it is tall as the big end will flex causing the sides of the rods to pinch in eliminating the oil clearance burning up the rod. Hence the term hotrod.😂

    21. Timothy Archer

      Wow! I think this has to be about the most extreme engine rebuild I've ever seen. This must have required at least 80--120 hours of hard manual labor, just to crack the case, break down the components, and clean out all of the mess. I've already seen the shorter post, where the time-lapse sequences of the restoration are featured. I was really impressed with the outcome, but so much more so, now, seeing all of the preliminaries. It's a commendable undertaking, to commit to saving an engine in such advanced condition of decay. I wish I could come work with you in your shop. That would be an amazing experience!

    22. Dave Brittain

      From crap to beauty!

    23. SpatialDragon

      Such an unusual engine design. Some brilliant ideas for the time and some that make you wonder...

    24. Brandon Greene

      This stuff is truely awesome! Thank you for all the insights and the disbursement of your years of knowledge. Subscribed!

    25. Aaron Long

      I'm sad to hear that the Wildcat can't be saved.

    26. Narciso Espinosa

      Keep the videos going, great knowledge sharing!!!!

    27. 88SC

      Any idea how it ended up in that shape? It had a hood covering the engine... did it sit through a flood? Always a shame to have to scrap old cores like this.

    28. no middle ground

      love the full length w/ color commentary ... episodically, i was lost when switching to other projects, which is cool, but this works for me.

    29. Jim Clarke

      Great looking car, needs a 455, judge))

    30. Muhammad Aminz

      i always want to see a redline rebuild explained for the 331 hemi..i've been searching for a long time..but never find it..please do a redline explained for hemi

    31. سوري وراسي مرفوع

      This is my dream car

    32. Skyline Fever

      15:36 I have heard of using nickel spray welding to add material to pitted valve seats, but that typically is only done to cylinder heads that are extremely rare. According to some of the nailhead experts who commented in earlier videos, rebuildable nailhead cores weren't too difficult to find.

    33. Avgwarhawk

      The rubber O-ring has worked for decade after decade.

    34. Noe Morales

      Muy buen trabajo mis chavos,felizidades.

    35. GoFood VN

      hihi videos veru good

    36. Jason King

      How do you decide which engines are good rebuild candidates? Ever considered a Willys F-134 engine?

    37. Bill Beyer

      Last time I rebuilt a motor with dual valve springs the cam maker was very specific about breaking the cam in with only the outer springs installed then installing the inners after break in.

    38. Jon Becker

      I’m shocked that engine was unusable 😂

    39. Colin Nicol

      Can’t believe you don’t wear gloves when working. Almost all the liquids you encounter on your builds are harmful in one form or another, and many are absorbed directly through the skin. The hydro carbon count in your blood stream must be sky high. You should have it checked.

      1. G K

        Colin Nicol - Millennial?

    40. moparedtn

      Davin makes this series. It's a genuine pleasure to watch each episode thanks to his combination of demeanor, expertise and humor. Just like with Tom on the barn finds series, Hagerty has chosen their hosts very well. Bonus: I have had Hagerty insurance on my '68 GTX for several years now and have had the unfortunate occasion of having to actually have a claim - and they performed flawlessly there, too. Quality all around. They've got a customer (and viewer) for life here! -Ed on the Ridge

    41. Mercmad

      Nail head as a nick name.. I'm pretty old but I remember them being called Nail valves because the valves in a 322 looked like a cheap nail,the heads were very thin with a skinny stem . My younger brother started to build a T bucket with a 332 and jag four speed on the back. (with over drive). This had been in a Allard Sports car and was real torque monster . A 401 is one of those old time engines where torque was more important than screaming revs as anyone who have driven a buick will tell you,while you're accelerating into license losing territory SBC's etc are screaming.i restored a 225 Electra for a friend a few years ago which had 425 on the aircleaner...that meant 425 ft/lbs Torque .Not bad for 1960.

    42. Ethan Hessong

      Rebuild a Ford FE or 385 series block.

    43. Darrin McSorley

      I love this. My late aunt had a mid 60’s Wildcat rag top, and it was her absolute pride. I am in my mid 50’s so only remember that car being about the same age as myself; metallic blue with I believe a white interior. That Buick stayed in our family for years, and it actually might still be in the possession of my cousin. Would love to know if the motor was a 401 or 425. Thank you so much for your videos, your historical perspective and attention to details. Very much appreciated!

    44. Jack Jacke

      Where do i go to get those tools n parts that walk over to the jobs by themselves? Handy!!!

    45. Beach&BoardFan

      Whats up with Davin? Was that a compromise between his parents, one wanted to name him david, and the other wanted to name him gavin?

    46. Marta Davies

      Where do all these engines end up? Do you have projects they go into? Or do they belong to customers? Id love to have my survivor Mustang's 289 all spiffed up with everything working again (original A/C and smog car). Great work as always... thank you for interesting content!

      1. Marta Davies

        I bet Ben could make a cool "Where are the Engines Now" video! ;) And, are you going to do a How We Rebuilt the Harley video?

      2. darnoldie

        Yeah, I'm curious about that as well. Where does a 401 Buick nail head find a home?

    47. Doc Strange

      How much would it cost to rebuild my 1986 Oldsmobile 5.0L 307cui?

      1. Kinsey Madeline

        @Doc Strange I think the issue with doing the 307 is that it can be tough and expensive to get more power out of them. You'll have much less options for heads, intake and exhaust. But then, as I say this, I'm considering a 351W build for my van, and it's not got a ton of aftermarket, but more than the 307.

      2. Kinsey Madeline

        @Skyline Fever I like that idea too.

      3. Skyline Fever

        I'm not sure. However, it may be worth seeing what you can pay for a rebuildable Olds 350 or 403 core and then rebuild one of those.

      4. Doc Strange

        @Kinsey Madeline I get that, but there is nothing wrong with the motor, I just wanted a price range. How much you swap an LS?

    48. Timothy LaPlante

      I'm pretty sure Cerakote is baked on to the exhaust manifold.

    49. Matthew Troiano

      If you had to do this again what kind of Klondike bar would it take?

      1. Wildcat66

        Preferably one from Kentucky they make the best

    50. Donk

      You guys make one hell of a team. Any chance of doing an old diesel or radial?

    51. chris walker

      So what happened to the body of the nailhead?

    52. John A

      Enjoy these Redline Rebuilds, Davin and Ben make a great team. What about something a little different, like a Corvair 6?

      1. Kinsey Madeline

        '68 Econoline SBF swap. 😁

    53. Duk A

      Это вам не Приору чинить!

    54. GTX 1080Ti

      ok, i was wondering why you guys werent uploading the redline update! guess you were busy doing this!

    55. Great laker

      I used a ridge reamer in the past and its designed not to go any further than the rest of the bore. You really would have to make an effort to screw it up or the reamer is made by some barefoot Chinaman in a shed.

    56. VetteKid

      I don't know about Buick's engine block inspection but I worked for a brief time at Caterpillar Tractor's now long gone building Mossville BB basic engine plant doing final inspection after machining and one of the things I looked for was thin casting flash that might break off when the engine ran and yes I removed it with a hammer and chisel.

    57. Racer 67

      Nothing is quite like what a freshly painted 60's v8 engine looks like when its brought back to its glory!

    58. Bruce Bennett

      if possible to ask, I would really like to know what type of Camera and set up was used for these Redline Rebuild vidoes?

    59. MétéoMan

      Davin = Genius

    60. André Gasparini

      where do you find the torque figures for so many different engines? Please

    61. uhfnutbar1

      when is it going on the dyno ?

    62. Richard Galli

      My first task would be to pressure wash the hell out of the engine and transmission

    63. Engir

      What is it going into?

      1. Bill Beyer

        @Engir he didn't say that he would just that it already had one.

      2. Engir

        @Bill Beyer I thought they had said in the video they where going to show us the engines new permanent home and then they did not?

      3. Bill Beyer

        William Volkmann uh no, that car went to the crusher. Did you even watch the video?

      4. William Volkmann

        the cover car coming off the roll off

    64. B. Allen

      Cost for rebuild?

      1. B. Allen

        @Wildcat66 only? If one had to pay a mechanic it would be thousands.

      2. Wildcat66

        I was able to rebuild a 401 for around $400

    65. netrioter

      meh...i would have went with the regular Buick V8, like a 300/340/350. Nailheads explode bigtime if you run them hard, everything cracks on them.

      1. theninjaproductions7

        netrioter they literally said in the first 5 minutes saying that they went with the nailhead because it was a unique engine.

    66. Mr. Roman

      28:31 what a beautiful color

      1. B. Allen

        @Mr. Roman Oh LMAO...yes.

      2. Mr. Roman

        @B. Allen the engine color. blue greenish

      3. B. Allen

        Rust color?