rworcester

I think I've made enough progress on my engine swap that it's time for a build thread. I'm in the process of yanking out the 383 stroker SBC that's been in the car for about 20 years in a couple different trim levels and swapping in a 2004 gen IV SBE 6.0L LQ4 and feed it with a Borg Warner S475 turbo w/ T4 flange.






10.5:1 383 SBC with TPI fuel injection that came out of the car

rworcester

This parts cleaner was the MVP of the rebuild



Old rods/pistons cleaned up really well



75mm S475 and a 50mm TurboSmart Hypergate wastegate





.660" Titanium Springs, custom Comp Cam





The plan











Finished up the long block

rworcester

Mock-up motor and our truck manifold headed to the turbo





I designed the bracket in SolidWorks and had a shop make it for me. It does well supporting the 40+ lb turbo







Crossover. We went back and tucked it up to the pan about another inch to gain ground clearance.

rworcester

Cleaned and pressure washed the engine bay, then painted it all black















mock-up wastegate pipe. It won't tie into the downpipe though

rworcester

4 corner Trick Flow steam vent installed



Oil feed and return lines on



Cold side piped up to intake











Dual trans cooler with jumper tube behind the radiator



The intercooler disappears when the bumper is on

rworcester

I'll have some more updates this weekend when I get back to working on it. I ordered a new 3" driveshaft, downpipe 4" pipe, we'll button up the cooling system and front accessory drive, and we'll be working on stripping down the wiring harness.

silent_assassin

subscribing

rworcester

Got the cooling system, installed as well as the charge pipe up to the intake manifold. Mocking up downpipe now.

MY_2K_Z

iTrader: (1)

What is the upper radiator hose you used looks like what I need

rworcester

Its the stock truck upper hose, any 4.8, 5.3 or 6.0 truck will have the same one. We trimmed off the ends and made it fit the car, then spliced in the steam vent drain in the middle there.

truckdoug

iTrader: (25)

I dig it. Was a 50/50 toss up to build a squarebody truck or a malibu. love the way those cars look. kindof a muscular boxy vibe.

rworcester

Now the car has seen the street and the track, here are some pictures of the finished (as finished as a street /strip car can be) product. Made 10 psi on a 7 lb spring and pulled hard. I need to address an ignition problem because it is pooping and breaking up over 5000 RPM but other than that and the O2 sensor issue it's running well. Very happy with the finished engine bay.

truckdoug

iTrader: (25)

nice work man, looks great

rworcester

Thanks. It's definitely rewarding having designed and built the whole combo in our garage on nights and weekends. There's countless hours in the build since March but the lessons learned outweigh the hours lost.

4EyedTurd1

iTrader: (1)

Looks good, where did you get the T4 flange with a round inlet?

truckdoug

iTrader: (25)

what plugs/gap?

rworcester

I got it from Ebay. It's a single piece, seems solid enough. You can search for "T4 flange to 3" pipe adapter" and it was $45 sold by HSMachine

rworcester

NGK-TR6 with the stock gap. We're going to go back in and gap them all a little smaller, maybe .030" to start with and see if that fixes my popping/ misfire issue above 5000 RPM with load.

truckdoug

iTrader: (25)

oh yeah thats your problem for sure. i did .025 like denmah does and all was good.

01cherryreds10

iTrader: (9)

So whats the car run?