Recent content by Jyrki

  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 :(
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