55.2-59 57 Fleetside C4 build - The 1947 - Present Chevrolet & GMC Truck Message Board Network

57FleetsideC4 · 01-17-2021, 11:29 AM

Starting to patch up the cab in the left plenum, A and B pillar and step area. My welding is not the greatest but will not fall apart. Steve

57FleetsideC4 · 01-17-2021, 11:44 AM

While I was patching the cab up I was thinking about what powertrain I was going to use. I settled on a 6.0 LS with a 4L80E trans from Just Chevy Trucks in Maine. This is one of there Hypermax builds in which they install rebuilt 5.3 heads on a 6.0 for more compression, new roller cam, lifters, cam bearings, oil pump and timing chains. They dyno the engine, tune a pcm to your specs with a stand alone wire harness. My engine made 472 h.p. at the crank which should move this truck good. They also supplied the 4L80E completely rebuilt. They did the engine, trans, harness and all associated parts like pcm, fuel pedal (mine will be DBW)and gaskets all for $4500 delivered to my door which I think is a good deal. Steve

57FleetsideC4 · 01-17-2021, 02:46 PM

After getting the engine and trans settled went back on the cab. First was finalizing the B pillar and inner cab corner I test fit the step which did not go well. The step rocker was at least a 1/2" below the cab corner. Should have known when the inner cab corner was to high and cut it down. someone had done cab corners and put them in to high on the body. After replace the out cab corners was able to get it aligned much better. The first test fit of the right door went well an gaps not too bad. Steve

57FleetsideC4 · 01-17-2021, 03:44 PM

Some more pics. This of the left side same area plus the fuel filler hole. Steve

57FleetsideC4 · 01-17-2021, 04:01 PM

After the cab work needed to test fit the LS engine and trans just to Make sure it fits. It was tight but fits great. I used the Dirty Dingo slider mounts which raises the engine 1/4" over other mounts and I needed it to clear the rack. these mounts allow the engine to be slid where you need it. Steve

5winElJefe · 01-19-2021, 05:43 PM

Looks like a great start to a project. Killer deal on the engine/trans setup. 472hp ought to move her along pretty mightily!

57FleetsideC4 · 01-20-2021, 07:35 PM

Quote:

Originally Posted by 5winElJefe

Looks like a great start to a project. Killer deal on the engine/trans setup. 472hp ought to move her along pretty mightily!

Thank You. I did not think I could go wrong for the price. A good friend used the same company for his 49 pickup only he used a 5.3/4L60E combo and runs great. Steve

01-17-2021, 11:29 AM	#1
57FleetsideC4 Registered User Join Date: Oct 2020 Location: CHURCHVILLE NY Posts: 454	Re: 57 Fleetside C4 build Starting to patch up the cab in the left plenum, A and B pillar and step area. My welding is not the greatest but will not fall apart. Steve Attached Images

01-17-2021, 11:44 AM	#2
57FleetsideC4 Registered User Join Date: Oct 2020 Location: CHURCHVILLE NY Posts: 454	Re: 57 Fleetside C4 build While I was patching the cab up I was thinking about what powertrain I was going to use. I settled on a 6.0 LS with a 4L80E trans from Just Chevy Trucks in Maine. This is one of there Hypermax builds in which they install rebuilt 5.3 heads on a 6.0 for more compression, new roller cam, lifters, cam bearings, oil pump and timing chains. They dyno the engine, tune a pcm to your specs with a stand alone wire harness. My engine made 472 h.p. at the crank which should move this truck good. They also supplied the 4L80E completely rebuilt. They did the engine, trans, harness and all associated parts like pcm, fuel pedal (mine will be DBW)and gaskets all for $4500 delivered to my door which I think is a good deal. Steve Attached Images Last edited by 57FleetsideC4; 01-20-2021 at 07:30 PM.

01-17-2021, 02:46 PM	#3
57FleetsideC4 Registered User Join Date: Oct 2020 Location: CHURCHVILLE NY Posts: 454	Re: 57 Fleetside C4 build After getting the engine and trans settled went back on the cab. First was finalizing the B pillar and inner cab corner I test fit the step which did not go well. The step rocker was at least a 1/2" below the cab corner. Should have known when the inner cab corner was to high and cut it down. someone had done cab corners and put them in to high on the body. After replace the out cab corners was able to get it aligned much better. The first test fit of the right door went well an gaps not too bad. Steve Attached Images

01-17-2021, 03:44 PM	#4
57FleetsideC4 Registered User Join Date: Oct 2020 Location: CHURCHVILLE NY Posts: 454	Re: 57 Fleetside C4 build Some more pics. This of the left side same area plus the fuel filler hole. Steve Attached Images

01-17-2021, 04:01 PM	#5
57FleetsideC4 Registered User Join Date: Oct 2020 Location: CHURCHVILLE NY Posts: 454	Re: 57 Fleetside C4 build After the cab work needed to test fit the LS engine and trans just to Make sure it fits. It was tight but fits great. I used the Dirty Dingo slider mounts which raises the engine 1/4" over other mounts and I needed it to clear the rack. these mounts allow the engine to be slid where you need it. Steve Attached Images

01-19-2021, 05:43 PM	#6
5winElJefe Registered User Join Date: Aug 2019 Location: Prosper, TX Posts: 4	Re: 57 Fleetside C4 build Looks like a great start to a project. Killer deal on the engine/trans setup. 472hp ought to move her along pretty mightily! __________________ “Perseverance is the hard work you do after you get tired of doing the hard work you already did.” ― Newt Gingrich 1975 Toyota FJ40 1952 GMC 5 window 1963 Falcon Convertible



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