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  1. #1
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    Default 318 Fireball rebuild

    Hi all,

    So my Valiant has been at the mechanics the past week, initially it was to figure out where this high pitched whining noise was coming from. While it was at the workshop they would start the car let it warm up and cool down and repeat and the noise seemed to disappear, sweet!

    I asked my mechanic if he could change the oil sump gasket, trans gasket and sector shaft seal as I've been leaving puddles of oil on the garage floor. When he took the oil sump off it as full of sludge and the oil screen was almost fully blocked. He found among the sludge bits of the thrust bearing or shim (can't remember which)

    Exciting news! I'm going to have it reconditioned, just a mild build. I have never built or had an engine reconditioned for me. I'll try and update the thread and add pictures when I can. If anyone has any suggestions on which which part brands I should or shouldn't use (cams, bearings) I'll take any advice.

  2. #2
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    If you trust your builder listen to his advice

  3. #3
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    Quote Originally Posted by desoto30 View Post
    If you trust your builder listen to his advice
    Good advice 👍

  4. #4
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    Default

    Hi all,

    No pics at the moment but things are moving forward. The engine will be out tomorrow, the trans is out and ready to be sent out to get stripped down to assess the condition.

    Tomorrow or possibly Wednesday the car will be delivered to my work where it will stay for a week or so. After hours and on the weekends I'll work on tidying up the engine bay and the other leftover bits from the engine (sump, alternator, starter motor)

    Some parts I've got are an edelbrock 2176 intake and an adapter, I've ordered a Holley 650 ultra double pumper and will be ordering some extractors soon. I'll be building a 2.5" stainless single exhaust with a flowmaster 44 series delta flow muffler once everything is back together. That's it for now.

    Thanks.

  5. #5
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    what heads & pistons have you decided to use?

  6. #6
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    Quote Originally Posted by desoto30 View Post
    what heads & pistons have you decided to use?
    The stock heads will be reconditioned, a set of j heads or aluminium heads would be best but that's something I could get later if I feel the need. As for pistons I'm not sure, I'll leave that one up to the mechanic to decide. Would you recommend getting stronger pistons and con rods?

    Thanks.

  7. #7
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    Quote Originally Posted by Winston! View Post
    Would you recommend getting stronger pistons and con rods?
    You'll most likely get a set of aftermarket cast style piston, which are OK for a mild build. Rods are fine, the only thing I would do is maybe get them resized with new rod bolts. Sometimes the cost of doing that is more than buying new scat rods though ...

  8. #8
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    Quote Originally Posted by paulzig View Post
    You'll most likely get a set of aftermarket cast style piston, which are OK for a mild build. Rods are fine, the only thing I would do is maybe get them resized with new rod bolts. Sometimes the cost of doing that is more than buying new scat rods though ...
    Thanks for the information, I'll pass it on. The engine will be blueprinted and balanced. I think I'd get stronger internal components for peace of mind even if it were a stock build.

  9. #9
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    as said Chrysler rods are plenty good. The problem with the pistons in virtually all those engines is they sit somewhere around 0.070'' down the bore the last one I did I used a piston like this https://www.uempistons.com/index.php...55da4148380f0d which raised the compression from it's dismal level to somehing decent. Being a fireball they already have reasonable comp. Just something for you & your builder to look at

  10. #10
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    Quote Originally Posted by desoto30 View Post
    as said Chrysler rods are plenty good. The problem with the pistons in virtually all those engines is they sit somewhere around 0.070'' down the bore the last one I did I used a piston like this https://www.uempistons.com/index.php...55da4148380f0d which raised the compression from it's dismal level to somehing decent. Being a fireball they already have reasonable comp. Just something for you & your builder to look at
    Thanks for the link!

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  12. #12
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    Engine out! Going to take a few parts to work to clean up, if I can sneak the sump and transmission crossmember and alternator case off to the powdercoaters next time we send our stock items would be great.

  13. #13
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    uploadfromtaptalk1434094932622.jpg

    A few items came in this week (carburetor, pacemakers, muffler, intake manifold bolts, billet turn buckle alternator bracket, throttle spring) still waiting on front sway bar and steering coupler rag. A reconditioned steering box and new alternator are next on the list.

    The engine has been stripped and is off to the machine shop Monday morning. There's not much else I can do as I've painted what I wanted in the engine bay and other bits like the sump, trans cross member, drive shaft.

  14. #14
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    A bit of bad news today, the block has 2 cracks and the 2 middle exhaust ports on the heads have been eroded beyond repair. A block and heads are going to be sourced by the machinist who knows a bloke with a cache of Chrysler parts.

    Roller rockers will be used and a .238 (hope that's right) crane cam is going in and KB pistons and file in rings will be used. Despite the bad news today I'm even more excited for what's to come of this build. The engine was awful before, constantly bogging down and stalling around corners, overheating because of the blockage, the large puff of smoke upon acceleration.

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    good to hear

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