No need to order. A correct 235 gasket will not have the coolant holes
(affectionately referred to as steam holes) in between the siamesed cylinders.
The 261 gasket, as will the block, will have the holes. An 848 head will not
have the coolant holes. This may be your problem as Bob stated. To drill the
holes, line a 261 head gasket correctly up to the head (alignment pins are a
good thing) and lightly punch a start where the 6 holes are to go. I prefer to
match the size of the block holes, and slightly angle the head passages *in* (5
to 10 degrees works). I've had problems in the past of not finding a water
jacket if the holes are drilled vertically. Keep in mind an off center passage
in the head may lead to cracking in the future. Just be very careful, as this
can be accomplished at home (however an air pallette drill press to handle the
weight of the head would come in darn handy). Good Luck!
>>> <JAL12147@aol.com> 09/19/99 06:09AM >>>
In a message dated 9/19/99 1:10:05 AM Eastern Daylight Time, miq@teleport.com
writes:
<< As was already mentioned by Bob ADler, did you drill all the steam holes in
the 235 head for the 261? There are 6 total in addition to the stock 235
holes. >>
I didn't drill any holes in the head. I compared it to the 261 gasket and
there are holes that appear to go into a water jacket (I stuck an awl into
them). There are two holes between 1 & 2, 3 & 4 and 5 & 6, 6 total. I
don't have a 235 gasket to compare it to, but will order one.
John
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|