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diagram of coolant flow on 3500

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  • #1

    diagram of coolant flow on 3500

    well im just waiting for my cam and reluctor wheel and i was doing some other small things untill they get here.

    one problem i have is i dont know where any of the stock 3500s coolant hoses go and come from. specificly i just need the basics, radiator in and out and heater core in and out. my car has no other provisions for coolant.

    any info would be great!
    3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
    96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
    2012 Chevy Sonic Turbo 6spd
    1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.
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  • #2
    The water pump big inlet on the bottom comes from the bottom of the radiator. The coolant thermostat neck goes to top of radiator. Black hard pipe coming from top of water pump comes from heater core. The black hard pipe coming from lower intake manifold goes to heater core. And on mine there is a coolant reservoir that has 2 small lines going to top of radiator, and from the thermostat neck, and then a medium one going to the big hose that goes to the bottom of the radiator..
    sigpic New 2010 project (click image)
    1994 3100 BERETTA. 200,000+ miles
     16.0 1/4 mile when stock. Now ???
    Original L82 Longblock     with LA1, LX9, LX5 parts
    Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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    • #3
      ok thanks! the fiero has the reservoir up front, and its just a overflow, so there is no need for all the extra stuff. all i have is a heater core and radiator
      3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
      96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
      2012 Chevy Sonic Turbo 6spd
      1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.

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      • #4
        is there picture diagrams of whats what and where it goes? that would help me understand a bit better.
        ENGINE HAS INTERNAL DAMAGE. THIS MOTOR WILL BE TAKEN OUT OF THE FIERO AND REPAIRED IN TIME. UNTIL THEN, A L67 WILL RESIDE IN ITS PLACE

        87 fiero gt 5spd 3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe, 2.5 inch ex, flowtech muff, 7730 ecm, moates.net APU1, self tuning *learning* (GOT FROM MY BROTHER, divorce reasons.)

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        • #5
          3400.
          that black steel pipe that runs to heater core.... can i just omit that and get the top hole welded shut? Then weld shut the heater core hole in the LIM?
          I currently got it looped (no heater core), I wasn't sure if it part of the flow system or not.
          sigpicHow to make High performance Emissions:
          A "true" High flow converter, straight pipe.
          Low/No flow EGR valve, block off plate.
          Carbon canister and purge valve mod, place in large 30 Gallon can, cover, and place curbside, the city will do the rest.
          PCV valve and vent tube, reroute to exhaust to dump where it belongs, on the ground. Or add breathers and let it all free.

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          • #6
            I had a pic at one time, no idea where it went. Not on my websites at least.

            You want to keep the heater core coolant lines connected at least. Superdave tried just blocking both off and kept getting air bubbles and overheating.

            Not sure if this helps any
            sigpic New 2010 project (click image)
            1994 3100 BERETTA. 200,000+ miles
             16.0 1/4 mile when stock. Now ???
            Original L82 Longblock             with LA1, LX9, LX5 parts
            Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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