Vortech Universal Small Block Chevy Carbureted User Manual
Page 12
P/N: 4GP020-015 v3.0, 2012-03-26
©2012 Vortech Engineering, Inc.
All Rights Reserved, Intl. Copr. Secured
2
Fig. 3-a
3. OIL dRAIN INSTALLATION (OIL-fEd UNITS ONLY)
A. To provide an oil drain for the supercharger, it
is necessary to make a hole in the oil pan.
Locate and mark the hole location. (See Fig.
3-a.) It is best to punch the hole rather than
drill.
B. Remove any paint from around the hole area.
C. Use a small center punch to perforate the
pan and expand the hole, switch to a larger
diameter punch and expand the hole further
to approximately Ø9/16". Most punches are
made from hexagon material and may be
placed in a socket with an extension to make
this procedure easier. Use caution so that the
hole is not enlarged too much and that the
punch does NOT contact the crankshaft.
D. Tap the hole with a 3/8"NPT tap approximate-
ly 1/4" deep. Pack the flutes of the tap with
heavy grease to hold the chips. Use a small
magnet to check for any stray chips.
E.
Thoroughly clean the threaded area. Apply a
small amount of silicone sealer to the new
threads. Apply more sealer to the supplied
3/8"NPT x 90° elbow and secure in the previ-
ously threaded hole. Make sure a seal is
formed all around the fitting. Rotate the fitting
so that the oil drain hose can be easily routed
to it. Apply sealer to the supplied 3/8"NPT x
1/2" beaded hose barb fitting and install in
the previously installed 90° elbow.
F.
Drain the engine oil, install a new filter and
refill with fresh oil.
NOTE: Removal of the oil pan may ease oil drain fit-
ting installation on some applications.
NOTE: This method of rolling over the lip of the hole
and tapping works well if carefully done and
should cause no problems.
IN-LINE
FOURTH BOLT
OIL PAN
OIL FILTER
PUNCH HOLE THROUGH
DOWN 2"
1"