Here are the specifications for the Buick 215 Series engine.
These are scans from a 63 manual.
Click on the thumbnails for the larger image – each is about 220K – 320K.
General capacities, Cylinder head nut tightening sequence, valve specs, bearing journal sizes, battery specs. Spark plug, timing, distributor, firing order,
Point gap – .016, Dwell – 28′-32′Plugs for v8 are 45-FFS, .035″ gap
Time for a standard is 5′ BTC, 7.5′ for auto.
Tune up specs, piston and pin specs. These are scans from an old manual for the Buick/Olds 215 v8: