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Projects High compression heads worth it?

Discussion in 'The Hokey Ass Message Board' started by Rex Jolles, Aug 29, 2022.

?
  1. Dual carb kit

    38.5%
  2. High compression heads

    30.8%
  3. Mill the stock heads

    50.5%
Multiple votes are allowed.
  1. well I haven't checked, maybe a bird stuffed some twigs in there, i'll shine a flashlight down there when I get home. I need to go get gas again though. I have a locking gas cap as well I bought off one of the guys at the motorcycle shop just in case. There's no way it leaked out over the 1 day I was out of town
     
  2. j427
    Joined: Aug 5, 2008
    Posts: 113

    j427
    Member
    from Ga

    Just to ad a note. May be a little hard getting John W Lawsons book. He passed away a few months ago. Never be any more.
     
  3. G-son
    Joined: Dec 19, 2012
    Posts: 1,410

    G-son
    Member
    from Sweden

    Just because the writer is dead doesn't have to have any effect on reprinting the books. Which is good for anyone who likes to read classic litterature, the bible or anything else written long ago.
     
  4. 34 5W Paul
    Joined: Mar 27, 2020
    Posts: 352

    34 5W Paul
    Member
    from Fresno CA

    Good on ya Rex. Keep at it. If I missed you checking the compression, I apologize.
    Sure, the carb needs to be right, but without some cylinder pressure, she won't make power.
    If I were you (a 16 year old kid in HS working part time) I'd do a compression test and see where she sits. One of the earlier posts noted 140psi in each cylinder. Where is your motor compression wise? That blowby can be a non factor or an issue. My first car was a worn out ex highway patrol car I paid $250 of my own hard-earned money at the tender age of 16. My money, not gift money.
    I tried everything to wake up the tired engine. I was hoping the rings were just stuck in the ring lands and some heat cycles and shade tree tricks would get them to seal again. Nope. Smoked like a freight train. You said yours only smokes at startup, so you are better off than I was. I'd still do a compression check right away.
    In my case, I (being nearly broke and in HS) ended up leaving the engine in the car and did a hone and re-ring job on it. Worked great, very low cost. Made better power and no blue smoke wherever I went.
    If you get the carb nailed and have solid compression, then think about the angle mill of the heads. I just had some milled .070" for $100 locally.
     
    Elcohaulic likes this.
  5. Elcohaulic
    Joined: Dec 27, 2017
    Posts: 2,213

    Elcohaulic

    You want to build your engine to run on 87 octane not 93. One thing all us old SOBs learned in the seventies and eightys was you don't need to run 11 or 12 compression to make good power. 9 is were its at.
    Dual carbs are a pain in the ass also. Either run a two barrel or a four barrel.
    If this engine runs decent now leave the deep parts alone and give it a good tune up with a valve adjustment.
    Check for vacuum leaks.
    Make sure the fuel pump is getting fed. Gas line with holes in it will not leak fuel it will suck air in and the engine will run like crap.
    Make sure the brakes are not dragging and holding you back.

    Check out all the little things. Stay away from the glitter and glamer parts.
     
  6. Yeah I still gotta make the long trip to the gas station and back with the gas can first, if I ever catch the guy who siphoned that gas i'm gonna kill him. Yeah I worked hard for that money, some of it was old birthday money but most of it was from doing odd jobs (shoveling snow, office boy, etc.) my neighbor keeps complaining about it being an "eyesore" and the seats are "obscene" what does he know anyway he's a new york hipster who just moved here I'll check the compression soon
     
  7. ironfly28
    Joined: Dec 22, 2003
    Posts: 1,028

    ironfly28
    Member
    from Orange, CA

    For $800 you could yank the flatty and put a small block in it. Or maybe a nailhead or an olds motor. I'm a flathead guy...but I don't build them for performance I build them because it's more convenient for me to throw away Money at home than going all the way to Vegas.
     
    NoelC and 34 5W Paul like this.
  8. No way man
     
    210superair likes this.
  9. Budget36
    Joined: Nov 29, 2014
    Posts: 14,362

    Budget36
    Member

    Damn, I’m sorry to hear of his passing. I had his book many years ago, I loaned it out and haven’t seen it since.
     
    Rex Jolles likes this.
  10. Updates:

    Fiddled with it today, the gas wasn't gone the car was just being wacky because now it's fine.

    I got it idling really smooth, you have to rev it a lot before it goes to a smooth idle. You have to keep it revved high until that smooths out then slowly let it back down to idle for it to be nice, quiet and smooth. But then if you even do so much as touch the gas pedal it immediately stalls. Strange, but progress.

    Do remember it's been a while since I started it (until today) and it's cold (the car was warmed up)
     
  11. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 13,726

    Bandit Billy
    ALLIANCE MEMBER

    Do you have a mate with a known, reliable carb, that you can fit to your engine? It would narrow down the possibilities. I had a buddy come over the other night with a poorly running engine, he thought it was valve train or compression. I took the street demon off my Olds and stuck it on his intake, and it ran great. Problem solved...well not really, I took my carb back. He can find his own.
     
  12. Unfortunately I don't, but I did take the carb apart before, nothing seemed out of place except for that the needle in the bowl got stuck sometimes
     

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