OT/chevy engine

The 348 & 409's (W engine) were still 90 degree motors. The only way I can figure any one mistaking it to be anything other than 90 degree is that the cylinder decks were milled off at at an odd angle. The surface of the heads were basically flat and the large open combustion chamber was formed by the wedge left at the top of the cylinder. The bores and crank throws were still 90 degrees apart.

Check out this months Car Craft and theres a big story in there about building a vintage 409 into a 500hp 481 stroker by boring .060 and triming the main journals on a 454 crankshaft to fit in the old the W block. Kind of a waste really, I'm sure they could have bought an equally potent more reliable 502 crate engine for less simoleans.

Give it a shot, never know. And GM did have dual point distributers in more than one engine, including the "twin six". What a monster, like 712 cubes and 2 small two barrels. Potential!!!

The dual points were in the commom box that mounted the twin 6 cyl distributor heads, no points/condenser in the distributor heads, just the rotor and cap for a high voltage rotary switch. I believe each point/condenser set in the common housing switched a seperate coil for each distributor head.
I dont know that any of the stock Chevy V8 truck or industrial stuff used dual points. The only one I remember was the iron case corvette unit with mechanical tacometer drive.

Now's the time really need one of those old reliable counter top AC or Delco shop manuals...before everything went to CD or mainframe computer. They had eveything in them including cross referencing. Should never throw old manuals out, but I'm guilty of...

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