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  1. Jyrki

    ST-400 Riviera '67

    Hi guys, I just purchased a beat-up 1967 Riviera. There's a severe shudder coming from the drivetrain. I have understood the ST-400 is a pretty stout unit, so I'm suspecting the 2-piece driveshaft. Any experience with that?
  2. Jyrki

    1967 Riviera

    Hi guys, I just purchased a '67 Riviera, my dream car. The same year as myself :D
  3. Jyrki

    Newbie with a 430

    Hi guys, I just bought a '67 Riviera, and all I know about Buick engines is the straight-8. The 430 engine runs bad, and sounds like it's got a flat lobe. The car was just unloaded from a sea container (USA->Finland), and I could barely drive it home. In case the engine needs an overhaul, where...
  4. Jyrki

    Aluminum 320 16-port crossflow head

    For your information, I have now started a project to design and produce a cast aluminum 16-port crossflow head for the 1936-52 320. It's going to cost a fortune to produce the first head, and probably a small fortune to produce successive heads, so demand will be limited, if non-existent. But...
  5. Jyrki

    320 Bore Spacing

    Does anyone have the 320 bore spacing dimensions at hand? I live in a metric world, and I'm lost with the fractions
  6. Jyrki

    Th700-r4

    Has anyone here used a Bendtsen's adapter to swap a TH700-R4 into a pre-dynaflow 40's Buick? If yes, did you have to modify the transmission tunnel? And did you fabricate something for the rear engine mount, or just used the transmission rear mount? I'm afraid omitting the rear engine mount...
  7. Jyrki

    ProCharged straight-8

    Finally getting somewhere with this: http://www.youtube.com/watch?v=7TFm-2dYlDQ
  8. Jyrki

    320 head cross-sections

    Does anyone have cross-sectional pictures of a cut-up 320 head, showing wall-thicknesses around ports ?
  9. Jyrki

    Cracked head

    Today I got my 320 head back from the shop, where they shaved .178" off the deck. I was really upset to find a crack on the deck, between cylinders, starting from a coolant hole on the spark plug side and leading to another coolant hole on the port side. There wasn't any crack when I took the...
  10. Jyrki

    Roller Tip Rocker Arms

    I got nope for answer from T&D Machine Products, and no answer from Rockerarms.com, so I got frustrated and designed my own. I'd like to get your thoughts about the design, especially regarding the oil supply. These are 1:65 theoretical ratio, with a fast opening/closing off-seat ramp. I'm using...
  11. Jyrki

    Pushrods

    What is the length of the stock 320 pushrod (solid cam)? I'm looking at the 3/8" titanium tubes that are sold on eBay at 12" lengths. Thinking of using the stock pushrod ends with a titanium tube - how cool would that be? But I fear that 12" might be just a tad too short?
  12. Jyrki

    Main studs, head bolts

    I'm wondering if anyone has found a suitable ARP p/n for 320 main studs or head bolts?
  13. Jyrki

    Valve Guides

    Anybody know where to get bronze valve guides for the 320, preferably for smaller 11/32" or 5/16" stems?
  14. Jyrki

    Mystery 248

    About a year ago I purchased an engine that was supposed to be a 320. When it finally arrived after two months of sea freight, it turned out to be a 248. Needless to say I was pissed. Now I'm trying to figure out what it is. It's got flattop pistons! Engine ID 1290710-2. Did the early 248's...
  15. Jyrki

    Where's everybody?

    It seems I'm the last one here, so I'll turn off the light when I leave :(
  16. Jyrki

    320 Combustion Chamber volume

    Has anyone measured the combustion chamber volume of a 320 head? I'm trying to figure out how much chamber filling would be needed, after going to a 3.594" overbore (350 cid), shaving the head .125", and shooting for 9:1 CR with flattop pistons.
  17. Jyrki

    320 Headers

    FYI: I sent my self-made headers to an exhaust shop to be ceramic coated. However they said it's easier to build new headers than strip the old chrome plating. Instead of reverse-engineering it all, I supplied measurements for the flanges. I'm telling you this because it will be possible for...
  18. Jyrki

    1946 Fuel gauge & sender

    Now that I dropped the tank from my 1946 Roadmaster, might as well ask about the fuel sender. When I bought my car as a project in 1997, I recall the seller told me the tank that followed the car wasn't original. He didn't know what it was, other than it came from an American car, maybe...
  19. Jyrki

    Crank mods

    I'd like to learn from other people's experience on lightening the stock crankshaft. What works and what doesn't? At some point Allleycat was in the process of modifying his 263 crank, but I haven't heard back. I was able to get a spare 320 short block that I'm going to build for serious power.
  20. Jyrki

    1936 Buick video

    I found a video clip of a 1936 Buick: http://bandmzcars.com/BuickLeavingWedding.html The owner is a member of this forum, 36Century, but unfortunately he's been offline for some time now.
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