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Thread: Spitfire / Hemi build
          
   
   

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  1. #16
    34_40's Avatar
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    Quote Originally Posted by 40FordDeluxe View Post
    We need to fly that guy up here and have him walk around my Vette. I can only imagine what he would say then. LMAO!
    .

    Probably give'im heart failure! 8-)

  2. #17
    firebird77clone's Avatar
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    That dude on the video.. I'm totally picturing the groundskeeper character from caddyshack. I had no idea anyone in their actual rhetoric truly sounds that shot out.
    Mike P and 34_40 like this.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  3. #18
    johnboy is offline CHR Member Visit my Photo Gallery
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    We've got one locally.
    Its been said of him that he opens his mouth and lets the wind blow his tongue about.

    (...and yeah; it was me that said it...)
    Last edited by johnboy; 12-04-2018 at 01:30 PM.
    johnboy
    Mountain man.
    Some mistakes are too much fun to be made only once.

    '47 Ford sedan. 350 -- 350, Jaguar irs + ifs.
    '49 Morris Minor. Datsun 1500cc, 5sp manual, Marina front axle, Nissan rear axle.
    '51 Ford school bus. Chev 400 ci Vortec 5 sp manual + Gearvendors 2sp, 2000 Chev lwb dually chassis and axles.
    '64 A.C. Cobra replica. Ford 429, C6 auto, Torana ifs, Jaguar irs.

  4. #19
    Mike P's Avatar
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    "......We need to fly that guy up here and have him walk around my Vette. I can only imagine what he would say then....."


    Heck I'd pay to see that

    I'm guessing he would identify it as a 54 with a Blue Flame 6.....until he realized it doesn't have carbs or plugs.


    Anyway I sent you a PM Ryan.


    .
    40FordDeluxe likes this.
    I've NEVER seen a car come from the factory that couldn't be improved.....

  5. #20
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    Ryan, coming along well, I know it's a poor excuse but my keys in my pocket scratched my phone camera so bad every pic looks like it was took in a cloud! I will have to get my son to take some pics, yes I have acquired some sweet hemi parts as well. I will try to make a point to post something soon!
    40FordDeluxe likes this.
    Why is mine so big and yours so small, Chrysler FirePower

  6. #21
    Mike P's Avatar
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    I miss the days of the old caustic hot tanks. Years ago all the local machine shops went to Jet Washes. They do OK on dirt and grease but don't touch rust. Exterior rust on blocks and heads can be bead blasted off, but it's virtually impossible to clean the water passages.

    I've used citric acid to de-rust other stuff and have wanted to experiment on a block and heads.......this is the perfect candidate.


    I bought a 5 pound bag off Amazon and the largest plastic tub Walmart carries.


    Y Citric by M Patterson, on Flickr


    The first batch to go in was the spare set of rockers and shafts, main caps and HEMI heads. All this stuff had been sitting in the trunk of the Imperial for 40 some years and was coated with a hard rust. Five head bolts were rusted solid into the rocker stands on one set of rockers.


    Y RP by M Patterson, on Flickr


    I put the first batch in the tub filled it with enough water to completely submerge everything and mixed in about 2 pounds of the citric acid.


    Y Soak by M Patterson, on Flickr


    It took about 4 days and during that time I eventually added about another 2 pounds of the citric acid. I suspect it would have only taken a couple of days had I done this in the summer when it was warmer........It was only getting into the 60s during the day and almost freezing at night.


    I took the caps and rockers out after the 4 days (decided to give the heads an extra day). Those parts came out rust free and the head bolt tapped out with no problem. The rockers are still a little stiff on the shafts so I'm hitting them with penetrating oil before I take them apart.


    H3 by M Patterson, on Flickr



    As I said main purpose of going thru this was to get the rust out of the water jackets and I'm pretty happy with how that turned out.

    WJ by M Patterson, on Flickr


    The Poly heads are currently in the tub (with the same solution) and they should be ready to come out about the time I get the block out here.



    .
    Last edited by Mike P; 12-07-2018 at 03:25 AM.
    I've NEVER seen a car come from the factory that couldn't be improved.....

  7. #22
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    WOW.

    Citric acid...

    Isn't that vitamin C?
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  8. #23
    johnboy is offline CHR Member Visit my Photo Gallery
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    Crikey!
    Now that's a good trick to remember.
    To de-scale the internal passages of any big chunk of metal is virtually impossible.
    But that sounds almost too good to be true.
    And it's cheap too!
    johnboy
    Mountain man.
    Some mistakes are too much fun to be made only once.

    '47 Ford sedan. 350 -- 350, Jaguar irs + ifs.
    '49 Morris Minor. Datsun 1500cc, 5sp manual, Marina front axle, Nissan rear axle.
    '51 Ford school bus. Chev 400 ci Vortec 5 sp manual + Gearvendors 2sp, 2000 Chev lwb dually chassis and axles.
    '64 A.C. Cobra replica. Ford 429, C6 auto, Torana ifs, Jaguar irs.

  9. #24
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    Thanks for showing this. I remember a few times when I was younger I seen some engine parts coming back looking brand new. I always wondered what they used to use.
    Seth

    God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing. C.S.Lewis

  10. #25
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    Very nice Mike! I wonder if you added a couple nozzles, a water pump, and a livestock water heater if it would work even better? I may have to try this on a some cummins parts I have.

    .
    34_40 likes this.
    Ryan
    1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
    1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
    1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
    Tire Sizes

  11. #26
    Mike P's Avatar
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    “………Citric acid... Isn't that vitamin C?.......”

    No but both are found in citrus fruits. (yeah, I had to look it up )

    https://www.fooducate.com/app#!page=...B-AB4E18ED0BE3

    “…….I wonder if you added a couple nozzles, a water pump, and a livestock water heater if it would work even better?......

    I think you just described a Jet Wash Ryan.

    Keeping it warm would help….all I had was a small tank heater I used to keep it above freezing a couple of mornings.

    Dave over at the machine shop told me the caustic solution is still available and I’ve hears of guys using a 55 gal drum with a ring heater to make a poor mans’ hot tank. The problem is getting rid of the solution after you’re done or it gets to the point where it’s not working anymore.

    I’ve used vinegar to de-rust stuff in the past and the smell gets pretty intense and unpleasant (to me anyway). It’s also more expensive than the citric acid. The citric acid doesn’t have near the smell and what you smell mostly is kind of lemon scented. Basically when you’re done de-rusting what you have left over is rusty un-sweetened lemonade.

    .
    I've NEVER seen a car come from the factory that couldn't be improved.....

  12. #27
    Mike P's Avatar
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    It's been mostly cleaning and inspecting parts. One of the Hemi heads is pretty badly pitted and going to take a fair amount of milling. Dave and I have been discussing options to save it if I can't find a replacement. The other head looks good and once it was cleaned up I got it CCed to get a base line of where we were at with that one.

    Chamber volume came in between 100 and 102 CCs (from what I can find advertised volume is 103 CCs).


    HH by M Patterson, on Flickr


    I also got the first pair of Poly heads cleaned up. The intake side looks just like a first Gen Chrysler Hemi. The exhaust side ports are considerably smaller than the HEMI head but still decent size for a 354 CI engine.

    P3 by M Patterson, on Flickr


    P4 by M Patterson, on Flickr


    The first surprise I found on the Poly heads was the weight. Almost every article about the Chrysler Poly heads says something to the effect that they were developed as a "cheaper and lighter head and valve train" alternative to the HEMI heads. On the cheaper and simpler side they succeeded pretty well. As far as weight, the bare HEMI head I weighed came in at 64 pounds........ the bare Poly 63 pounds


    The bigger surprise was chamber volume. Common belief (including mine) is that Poly heads have a much smaller combustion chamber than the Hemi heads and that when doing a head swap to convert a Poly to a Hemi that a piston change is required to get the compression back up. A glance at the chambers would seem to confirm that.

    P2 by M Patterson, on Flickr


    Actually CCing the chambers tells a completely different story. On the first 2 heads that I checked chamber volume ranged between 102 to 104 CC (the 104 cc chamber was on the other head). Practically speaking going from Poly to Hemi or the other way around will not cause a compression change.


    P1 by M Patterson, on Flickr


    Once I get the other pair of heads cleaned and inspected we'll make the decision on what two to build. These 301 Poly heads and the 331 2 bbl heads use a 1.812 intake valves. I've already picked up a set of the 331 4bbl/354 intake valves that are 1.94s. All the Poly heads used a 1.5 exhaust valve and Dave and I are currently looking into a cheaper and larger alternative to the stock exhaust valve.


    I've also been looking at the options for a roller cam.......any of the HEMI guys out running a street roller cam they would recommend?



    .
    I've NEVER seen a car come from the factory that couldn't be improved.....

  13. #28
    40FordDeluxe's Avatar
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    I wish I could give you any ideas. I'm considering getting a roller cam for mine just to help reduce issues.
    Mike P likes this.
    Ryan
    1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
    1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
    1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
    Tire Sizes

  14. #29
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    Mike, If you are after a recommendation get on Facebook and find Nick Smithberg from Smithberg racing. This guy is a genius on early hemi's (I bet he knows polys too) he competed in the Engine Masters with Gene Adams team and is real sharp. He stunned everyone this past year with a variable length intake runner system on a early hemi that adjusted while the motor was on the dyno! He is very willing to help also, and strangely he is a young guy who loves the early stuff. I am going roller on my 392 build but it has .525 lift, thus the reason for the roller rockers, knocking out being a "economical choice".
    Mike P, 53 Chevy5 and 40FordDeluxe like this.
    Why is mine so big and yours so small, Chrysler FirePower

  15. #30
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    With 100 cc heads on a 350 size motor it will take a pretty good dome on the piston top to get compression where you want it------biggest issue it the different valve locations/angles-------you'll need pistons that will clear both sets of valves

    A roller cam is piece of cake-talk to one of the cam companies and have them grind you what you want for use of motor-------might have a problem will cam cores so you may need to regrind it on one of your old cams-----
    By popular opinions-just a grumpy old man key board bully--But really, if you are going to ask for help on an internet site, at least answer questions about what you are asking about-----

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