74 Challenger with twins

[YellowThumper]

Passenger side is now 100% fully welded.
On to drivers side.

[daaboots]

Incredible work man! Can't wait to see this thing rip!

[YellowThumper]

Incredible work man! Can't wait to see this thing rip!

Thank you. Me as well. This has been a lengthy path.

[YellowThumper]

Oooh more....
Drivers header full welded.
Had to sand flange face to remove weld warpage.

[daaboots]

This makes me want to run a turbo on mine so bad!

[YellowThumper]

Mundane item update.
Oil feed and drain lines are now sorted. Will need to insulate the feeds.
Finished welding the turbo to intercooler piping. Top tube is what I started with. JY sourced tubes from a Volvo. Will clean up and repaint them later.
Moved on to the (I'm too old for this sh..) underside location. Cleaning and stripping the floors for weld.
Plenty of grinding necessary for proper fitment of the frame connectors.
Next up before welding them in will be removing the 5/16 fuel line replacing with 3/8" feed and return.
Also measure proper locations of e-brake cables to add clearance thru the new rails.

[YellowThumper]

Frame connectors fit, surfaces stripped and ready for weld.
Also happy to say, properly located clearance holes for the e-brake.
Tic tic tic...

[YellowThumper]

Work was several weeks ago.
Slowly getting over being sick.
Replaced fuel lines to now have both feed and return lines 3/8 diameter.
Replaced sending unit because previous new(ish) one was already bad. Float had fuel in it and the resistor coil had several dead spots what would cause irratic guage readings.
Unfortunately I had to drop tank because the float popped off when installing unit. It is tight because of the added return line.

[Brads70]

When/if you get sick of those aftermarket sending units you might consider one of these? I have one in mine.
https://www.tanksinc.com/index.cfm/page/ptype=product/product_id=478/category_id=68/mode=prod/prd478.htm

[YellowThumper]

When/if you get sick of those aftermarket sending units you might consider one of these? I have one in mine.
https://www.tanksinc.com/index.cfm/page/ptype=product/product_id=478/category_id=68/mode=prod/prd478.htm

Yes, the path I will be going with. Current is just to keep marching forward because it is still functional.
Last on the list will be replacing rear and gearing along with fuel tank and pump.

[YellowThumper]

Still not feeling good enough to be crawling and welding on underside, I changed focus to top side necessities.
After what was probably 6 different ideas and partially made iterations for relocating coils, I finally decided on space between valve covers and intake would be the best.
Other locations all had space constraint issues. Others had the coil wires being vastly too long.

L bracket mounted to fuel rail brackets. Screw on tabs to hang the coils from.
Functionally complete. Now for further refinement to clean it up.
Passenger side required relocation of tab on the coil to get them clocked to fit proper.

[YellowThumper]

Nothing like hacking up a rare M1 manifold to suit your needs.
Removed the 2 mounting posts to allow rotating the injector connections inbound. Outside real-estate will now be filled with coil brackets.

[6PKRTSE]

Awesome build. My next engine build will be a  twin turbo Hemi (last 3). First 3 are the current build.

[YellowThumper]

Coil mounting 4.0 (first 3 iterations all failed for various reasons).
Using the fuel rail mounting bolts to hang the coil brackets.
Basic angle steel cut and cleared where necessary.
Drivers side was easiest.
Passenger side I needed to cut tabs off coil brackets to clock them in a different rotation for clearance.
Functional now. Ugly will remain until EFI and motor swap is complete.
Focused drive to end goal.
Only what matters is what matters.

[YellowThumper]

Removed the old chrome covers. Believe they are 273 originals.
Frankensteined some newer ones to add more clearance. Will be welding on tabs to mount heat shielding along with containment tabs for plug wiring. Will dress them up a bit. But most of the ugly will remain. They are only temporary until the 5.9 Magnum is swapped in.