It should have 150 PSI per cylinder. If it has a reading of 90 LBS. are less on any given cylinder, Then the engine will idle rough at an idle. / engine miss.
You can't have anymore then 15 LBS. difference in any one cylinder.
150 LBS per cylinder is a good reading on a fresh are good running engine that's in good shape.
You may have only 120,130,140 or 150 LBS. That is your highest reading, And engine will run fine as long as there is no more then a 15 LB. difference in any given cylinder.
Hope this answers your question. A 100 or less LBS means the engine is tired / Worn out needs rebuilt.
Yes,
YES.
Yes.
When it was new it had 150 PSI. per cylinder
Yes.
A 1967 Chevy Impala with a 283 motor should run at a temperature between 180 and 195 degrees. The temperature is set by the thermostat which controls coolant flow.
Chevy built a 302 in the late sixties. It used a 327 block with a 283 crank.
No. The length is ok, but the journals are different.
Yes, it has the same bell housing bolt pattern.
Bad are burnt intake or exhaust valve. Pistion rings broken, Burned pistion. Blown head gasket. That is all that would cause no compression are a loss of compression.
YES. That is a direct bolt on with no problems. The heads will bolt on, but the compression ratio will be different. Depending on which heads and which pistons, the compression ratio could be a lot different.
The turbo 400 transmition is widely used, it just depends on what motor it was originally bolted to.