Keith,
In answer to your question, will a .060" over bore make your 1800 run hot,
the answer is "Maybe"
The variable is the wall thickness of a particular block. If a block (any
block) is bored too much, the wall become thin enough to be pourous (sp?).
What that point of "too much" is,will vary from block to block.
But generally speaking, the 1800 B series engine has enought meat to handle
a .060" overbore with no problems. The fact is, the first "step" in making a
big bore out of a B series is to bore .080" oversize which will give you
about 1920 cc. A few of my local club members have done so with no ill
effects (other then the fact the car will scare the Hell of you in a straight
line!)
It's very possible the person who told you the car would run hot at .060
over had one done by a less than precise machinist who (1) fitted the pistons
too tight (2) bored the block off center, (3) failed to properly clean the
block prior to working and the water passages were less than full flowing, or
(4) all of the above
Rick Morrison
|