[FC] oem Oil Temp Sender ??? -- also <VV>

[James Davis]

GM produced a series of Corvair engine blocks (crankcase halves)  in 
the late 60's and early 70's know as "universal replacement 
blocks".  Some of these blocks were stamped with engine serial 
numbers and some lack the numbers.  If one of these blocks was 
installed in a car or FC, the dealer was to stamp the correct serial 
number on the block in the appropriate place although most did not. 
Universal replacement blocks came with the 60 oil pressure tap in the 
oil pan area plugged with a pipe plug, car dipstick boss was cast but 
plugged, the hole for the FC dipstick was cast and plugged, and the 
block was cast with the reliefs for the 2 and 15/16 stroke 
crankshaft.  Thus, these blocks could be used on any year and model 
Corvair.  These blocks were different from the TxxxxXXX , TxxxxXXA, 
TxxxxXXO, and TxxxxXXZ  engines which were short blocks (they came 
with the crankshaft and cam already installed).
Jim Davis



At 04:51 PM 6/29/2007, Chris & Bill Strickland wrote:
>Dear Experts --
>
>Yes, I am aware that the original 1960 Oil Pressure Sender was relocated
>from near the dip stick tube boss to the oil filter adapter because of
>leakage issues, but I didn't know (or don't remember) that the very
>early cars also had an oil temperature sender installed in a casting
>boss in the same area of the block, below the dipstick, instead of the
>cylinder head temp switch.  When was this change made?
>
>This becomes more curiouser to me, as I also have a 164 ci FC block that
>also has this OT boss, which is drilled and tapped. Did FC's continue to
>use the OT sender? Or was it just the same machining? Wouldn't this 
>boss  have at least been eliminated (saving aluminum) on the new 
>castings for the 164 motors?
>
>One other early (145 ci) car engine that I have has the plug in the oil
>galley passage by the dipstick and no OT boss.
>
>Bill Strickland
>
>
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