OCTOBER 2019 II CHEVY HIGH PERFORMANCE 69
17 | Our SP350 has undergone final decking and now it’s time for all those
pesky steps necessary to get a fresh engine fired. Because the engine is
generously lubricated during assembly, you don’t necessarily have to prime
the oiling system, but it is suggested. You can never have too much oil on
moving parts.19 | Items like the coolant temperature and
oil pressure sender can be in different locations
depending upon the engine you are replacing. Joel’s
350 had its coolant temperature sender toward the
back of the intake manifold. The SP350’s dual-plane
intake manifold sports a coolant temperature sender
in front, which means Joel will need to add length to
the lead wire.20 | Joel’s 850-cfm Holley from the old 350
will not be swapped to the SP350. However, the
dual-feed plumbing will be transferred to the Holley
750-cfm carburetor Chevrolet Performance has
provided. Joel admits his 850-cfm atomizer was too
large for the 350.
16 | When Joel
was decking
the engine he
discovered a torn
rubber engine
mount, which
could have been
catastrophic. He
opted for a fresh
pair of polyurethane
engine mounts from
Energy Suspension,
which will provide
durability and
vibration isolation.
18 | Joel gets
the Doug’s long-
tube ceramic-
coated headers
connected to
the exhaust
system. It is
always a good
idea to install
new gaskets and
check the system
for leaks.
21 | The 750-cfm Holley 4150 is placed and anchored. It’s a good idea to use an insulator gasket between
the carburetor and manifold to enable your Holley to run cooler. Chevrolet Performance provides the base
gasket and all hardware to get the job done.