1988 Monte Carlo SS
LS1/T56 Change-over page
2001 Project Updates
07/01/01 Fuel line installation
I missed my June date for at least trying to fire up the
motor :>( Oh well, I'm not that far away. Unfortunately I will be
leaving town for a 3 week seminar beginning July 9th so progress will come to a stand
still shortly until the end of July.
I'll install the fuel pump into the gas tank and get the
high pressure flex line to connect the gas tank next.
07/07/01 Fuel pump and tank installation
I prepped the Walbro 340 pump and gas tank for final
- The OEM fuel supply line was severely crimped as it passed
through the top of the fuel sending unit housing. I went ahead and replaced this
piece with a new 3/8" steel tube soldered in place to eliminate this restriction.
- I was a little disappointed with the Walbro fuel pump
electrical connections because they were not a direct fit with the existing connectors as
advertised. I had to cut the connectors off of my TBI pump connections and crimp fit
the wire ends to the Walbro connectors to make the electrical connections fit properly.
Here is the pump installed to the TBI sending
unit with the new pump and screen attached ready to be dropped into the gas tank.
- The short middle return line that connects the body mounted
solid fuel lines to the gas tank via rubber lines was only a 1/4" diameter line for
some reason. I went ahead and formed a new 5/16" diameter line to replace this
- This view shows the fuel
line connections from the tank routed and connected to the body mounted hard lines
with double clamps for extra safety on the high pressure supply and return lines.
of the heat shield to cover the rubber fuel lines connecting directly above the
passenger exhaust tailpipe completes the rear fuel system installation except for the
The last remaining item for the fuel system is the wiring
and will consist of a new lead running from the alternator via a relay to supply +12V
minimum to the electric pump at all times.
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