85 lwb turbo 5.3 build - The 1947 - Present Chevrolet & GMC Truck Message Board Network

85burb · 10-28-2012, 11:30 PM

Ok this is a new one for me. I did a 6.0 in my burb but it was carbed then aftermarket efi. This one will be factory efi with turbo. Never had or built a turbo motor before. So i will be needing some help. I plan to get a 5.3 and change the ring gap and maybe a cam and head studs. But no heads or crank/rods. Would like 500 hp to the ground. I have looked on the ls1tech site and the lowest on there i can find with a 5.3 and turbo is 550. Should not be too hard to get that power mostly stock. We went around and around about what to do with this truck and it has been for sale for a while with no real takers. So i finally talked wife into keeping it. YAY. Now the fun starts. It will be a slow build as i dont even have the motor yet. I have my eye on just chevy trucks.com they have a ebay store that sells stand alone motors. All pullouts and come with a current performance harness and ecm. I have seen 5.3 with stand alone for under 1000 bucks. Has anyone used them or that harness? Not sure what size turbo yet. I have tons of resurch to do on that. Should be a fun swap. So here are some pics of the truck. Any advice will be appreciated.

High ho silverado · 10-29-2012, 01:36 AM

Keep an eye out on craigslist, I'm constently seeing turbo/supercharger kits on there used or jus used for mock up at a pretty good price, atleast in my area. If u talk to these guys they can tell u what u need to use to make these setups work. As far as motors there is a place out of Texas that u can submit offers too and they usually take them, I offered 550 on a 75,000 mile 5.3 and they said ok, I had to back out tho because a 6.0 fell in my lap and I decided to go that route instead. Shipping was 250 flat rate and they would work with me on the warrenty. If I can find the eBay site again ill let u know what it is if ur interested. Looks like a cool build and will be following.
Posted via Mobile Device

Wasted Income · 10-29-2012, 10:31 AM

For a goal as low as 500 rwhp, I wouldn't bother dicking with the ring gap. Lots of guys making way more than that on bone stock bottom ends.

85burb · 10-29-2012, 01:49 PM

That is just a starting goal. I figure when I have to motor out will be the best time to do it. I don't really know what to expect for power yet.
Posted via Mobile Device

85burb · 10-30-2012, 11:12 PM

Well i put in some emails to different turbo companys. Already got a email back from one asking about the motor specs. So hope i can figure that part out. What kinda fueling mods will be needed? Bigger injectors? Fuel pressure regulators? I plan on ls1/6 type manifold with aftermarket rails and -6 or -8 fuel line. But not sure on sizes cause this is my first efi build with factory stuff.

Wasted Income · 10-31-2012, 09:50 AM

My last setup was a Borg Warner S475, stock truck rails with regulator, stock truck intake, stock truck TB, Siemens 60 lb/hr injectors, Bosch 044 fuel pump, -6 feed line. Pushed my 4300 lb LWB into the 11s with a 5.3L and 4L80E.

High ho silverado · 10-31-2012, 10:48 AM

As far as intake the truck intakes make the better torque and hp for the bang, I've seen and read a ton on the stock intakes and dyno testing and they did the best till I get into the ls3 and ls6 but they are head specific and then the lsx intakes are another story too. Like wasted incomes set up is all ud need as long as u have a good tuner for it, the tune is the hard part. There are tons of diff turbos on the market and a sh*t load on the used market, I've seen lots of whole ls1 setups using stock truck manis and the do all the hard part of welding and making the tubes and everything on craigslist for under 400 some even with injectors and most of the stuff u need.

I'm sure ther is tons of help on here and I can't wait to see how it goes, I've been thinkin hard on doing one too and am hoping ur build makes my mind up for me.
Posted via Mobile Device

Wasted Income · 10-31-2012, 02:39 PM

Yeah the tune took a lot of work to get right. I did it all myself with EFI Live, on the street. I was real conservative with the fueling and timing, so there was a bunch left on the table.

I'm redoing my setup again now with an Edelbrock Pro-Flo intake, Aeromotive rails/regulator, Fuelab pump, -10 feed from a sumped tank, megasquirt ms3x engine management, a different turbo, and revised hotside plumbing.

Hoping for a little better than high 11s with the new setup.

85burb · 10-31-2012, 05:11 PM

So all i need is bigger injecters? That would save tons of money. I will be most likely putting a tank in the bed. And using a external pump cause i cant find any internal pumps and would like to move my factory fuel tank to the trash can. I think it has crap in it. I am not sure who will be doing the tune. I dont know anyone for that. I know a shop with a dyno but not sure if he tunes. I think he may. Hope so anyways.

A nother question is would it be best to buy a motor that comes with a modifyed harness. or make one. I know where to get a 5.3 with current performance harness for 1100. But i am new to both turbo and factory efi so i dont know if speed density tune will be needed or not. I would like to keep it cause some people say it drives better with a maf. Any ideas?

Wasted Income · 10-31-2012, 06:39 PM

Screw the MAF. You don't need it for perfect drivability with a good tune. EFI Live open loop speed density on a COS5 2/3 bar operating system is what I've used for many swaps with good success.
Posted via Mobile Device

68GMCCustom · 10-31-2012, 07:06 PM

IIRC most guys that run boost are running in speed density instead of using a MAF?

85burb · 10-31-2012, 08:22 PM

I know the guys running big boost like over 1000hp dont. Sounds cheaper to me. Not sure about the operating system or what not. Open loop though it kinda weard. Dont cars run better in closed loop cause they use all the motors sensors to figure the fuel and spark tables? I would asume anyone that can tune the motor can turn that on and off? What about mail order tunes? Are they worth the money?

clinebarger · 11-01-2012, 12:08 AM

85burb, Is that the truck with the TH375?? Good trans for a boosted truck.

85burb · 11-01-2012, 12:13 AM

Quote:

Originally Posted by clinebarger

85burb, Is that the truck with the TH375?? Good trans for a boosted truck.

Yes it is. I need to have it built. Would a 400 be better or just have the 375 built?

clinebarger · 11-01-2012, 12:41 AM

Quote:

Originally Posted by 85burb

Yes it is. I need to have it built. Would a 400 be better or just have the 375 built?

Build the TH375, The only "weaker" part is the output shaft, Breaking it would still be a badge of honor

clinebarger · 11-01-2012, 09:24 PM

Quote:

Originally Posted by 85burb

I know the guys running big boost like over 1000hp dont. Sounds cheaper to me. Not sure about the operating system or what not. Open loop though it kinda weard. Dont cars run better in closed loop cause they use all the motors sensors to figure the fuel and spark tables? I would asume anyone that can tune the motor can turn that on and off? What about mail order tunes? Are they worth the money?

Part throttle Closed loop Speed density tuning is still optional.
At WOT they enter open loop anyway.

68GMCCustom · 11-01-2012, 10:34 PM

I've been a eaton/magnuson fan.....but I have to admit...Procharger has a great new boost solution.

videos/power-adders/procharger-introduces-revolutionary-programmable-ratio-supercharger/

85burb · 11-01-2012, 11:24 PM

Wow that is very cool. I am sure those are crazy expensive. Prices for some of the non-fancy ones are like way over 5k. I am sure that programable one is crazy high. That technology never worked real good in a transmission so maybe it will be ok on a supercharger with out the hole cars weight on it.

Wasted Income · 11-02-2012, 09:31 AM

Quote:

Originally Posted by 85burb

I am sure those are crazy expensive.

LOL, but a ball bearing, billet wheel turbo isn't? You need to consider the WHOLE cost to make the comparison...the turbo, oil feed and drain lines and fittings, wastegate, flanges, v-bands, mandrel bends, welding, coating of the hotside.
Intercooler, mounting, silicone hoses, aluminum charge pipe tubing, etc.

The cost might be closer than you think when you add it all up, espeically if you farm out some/all of the fabrication.

85burb · 11-02-2012, 11:11 PM

I never said the turbo was a lot cheaper. It is more affordable for me. A few hundred here and there is a lot easier then a 5k all at once for my budget.

So after finding out i will prob need speed density tune would it make sense to buy a motor that already has a modifyed harness and programed ecm that uses a maf or to just get a motor with a stock ecm and harness?

Wasted Income · 11-05-2012, 10:04 AM

I would go with the stock harness and ecm, since it will need to be reflashed specific to your setup anyway.

85burb · 11-05-2012, 07:30 PM

Ok that is kinda what I was thing but had to ask.

May have trucks 350 sold this weekend!
Posted via Mobile Device

69trk · 11-07-2012, 08:33 PM

I'm doing the holley dominator efi complete kit... It's around 2500 but is self learns which would save some money from having it tuned all the time...

85burb · 11-07-2012, 09:05 PM

I am pretty sure my motor will be gone buy Sunday. I have 3 people interested. Who ever shells out the money first gets it. And I have a motor I want. It's a 04 5.3 so it should have the better ls2 rods in it I have read.
Posted via Mobile Device

clinebarger · 11-07-2012, 09:37 PM

The stock Gen III engine management system is one of the greatest EFI systems ever developed. GM could buy Holley with the money they spent developing their EFI.

Get the tuning right & You dont need it tuned ever again unless you change something & that's what HP Tuners & EFI Live is for.

Most/Good tuners dont charge full price after the first tune.

10-28-2012, 11:30 PM	#1
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	85 lwb turbo 5.3 build Ok this is a new one for me. I did a 6.0 in my burb but it was carbed then aftermarket efi. This one will be factory efi with turbo. Never had or built a turbo motor before. So i will be needing some help. I plan to get a 5.3 and change the ring gap and maybe a cam and head studs. But no heads or crank/rods. Would like 500 hp to the ground. I have looked on the ls1tech site and the lowest on there i can find with a 5.3 and turbo is 550. Should not be too hard to get that power mostly stock. We went around and around about what to do with this truck and it has been for sale for a while with no real takers. So i finally talked wife into keeping it. YAY. Now the fun starts. It will be a slow build as i dont even have the motor yet. I have my eye on just chevy trucks.com they have a ebay store that sells stand alone motors. All pullouts and come with a current performance harness and ecm. I have seen 5.3 with stand alone for under 1000 bucks. Has anyone used them or that harness? Not sure what size turbo yet. I have tons of resurch to do on that. Should be a fun swap. So here are some pics of the truck. Any advice will be appreciated. Attached Images __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

10-29-2012, 01:36 AM	#2
High ho silverado Registered User Join Date: Sep 2012 Location: clearmont mo. Posts: 75	Re: 85 lwb turbo 5.3 build Keep an eye out on craigslist, I'm constently seeing turbo/supercharger kits on there used or jus used for mock up at a pretty good price, atleast in my area. If u talk to these guys they can tell u what u need to use to make these setups work. As far as motors there is a place out of Texas that u can submit offers too and they usually take them, I offered 550 on a 75,000 mile 5.3 and they said ok, I had to back out tho because a 6.0 fell in my lap and I decided to go that route instead. Shipping was 250 flat rate and they would work with me on the warrenty. If I can find the eBay site again ill let u know what it is if ur interested. Looks like a cool build and will be following. Posted via Mobile Device __________________ Dan G Lift it, fat chicks cant jump! 83 Chevy shortbed 4x4: 6.0 ls powered 97 Chevy 3/4 ton ex cab 454: work horse 00 Chevy camaro: daily driver 83 Chevy 3/4 ton: dads old rig

10-29-2012, 10:31 AM	#3
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: 85 lwb turbo 5.3 build For a goal as low as 500 rwhp, I wouldn't bother dicking with the ring gap. Lots of guys making way more than that on bone stock bottom ends. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

10-29-2012, 01:49 PM	#4
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build That is just a starting goal. I figure when I have to motor out will be the best time to do it. I don't really know what to expect for power yet. Posted via Mobile Device __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

10-30-2012, 11:12 PM	#5
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build Well i put in some emails to different turbo companys. Already got a email back from one asking about the motor specs. So hope i can figure that part out. What kinda fueling mods will be needed? Bigger injectors? Fuel pressure regulators? I plan on ls1/6 type manifold with aftermarket rails and -6 or -8 fuel line. But not sure on sizes cause this is my first efi build with factory stuff. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

10-31-2012, 09:50 AM	#6
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: 85 lwb turbo 5.3 build My last setup was a Borg Warner S475, stock truck rails with regulator, stock truck intake, stock truck TB, Siemens 60 lb/hr injectors, Bosch 044 fuel pump, -6 feed line. Pushed my 4300 lb LWB into the 11s with a 5.3L and 4L80E. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

10-31-2012, 10:48 AM	#7
High ho silverado Registered User Join Date: Sep 2012 Location: clearmont mo. Posts: 75	Re: 85 lwb turbo 5.3 build As far as intake the truck intakes make the better torque and hp for the bang, I've seen and read a ton on the stock intakes and dyno testing and they did the best till I get into the ls3 and ls6 but they are head specific and then the lsx intakes are another story too. Like wasted incomes set up is all ud need as long as u have a good tuner for it, the tune is the hard part. There are tons of diff turbos on the market and a sht load on the used market, I've seen lots of whole ls1 setups using stock truck manis and the do all the hard part of welding and making the tubes and everything on craigslist for under 400 some even with injectors and most of the stuff u need. I'm sure ther is tons of help on here and I can't wait to see how it goes, I've been thinkin hard on doing one too and am hoping ur build makes my mind up for me. Posted via Mobile Device* __________________ Dan G Lift it, fat chicks cant jump! 83 Chevy shortbed 4x4: 6.0 ls powered 97 Chevy 3/4 ton ex cab 454: work horse 00 Chevy camaro: daily driver 83 Chevy 3/4 ton: dads old rig

10-31-2012, 02:39 PM	#8
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: 85 lwb turbo 5.3 build Yeah the tune took a lot of work to get right. I did it all myself with EFI Live, on the street. I was real conservative with the fueling and timing, so there was a bunch left on the table. I'm redoing my setup again now with an Edelbrock Pro-Flo intake, Aeromotive rails/regulator, Fuelab pump, -10 feed from a sumped tank, megasquirt ms3x engine management, a different turbo, and revised hotside plumbing. Hoping for a little better than high 11s with the new setup. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

10-31-2012, 05:11 PM	#9
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build So all i need is bigger injecters? That would save tons of money. I will be most likely putting a tank in the bed. And using a external pump cause i cant find any internal pumps and would like to move my factory fuel tank to the trash can. I think it has crap in it. I am not sure who will be doing the tune. I dont know anyone for that. I know a shop with a dyno but not sure if he tunes. I think he may. Hope so anyways. A nother question is would it be best to buy a motor that comes with a modifyed harness. or make one. I know where to get a 5.3 with current performance harness for 1100. But i am new to both turbo and factory efi so i dont know if speed density tune will be needed or not. I would like to keep it cause some people say it drives better with a maf. Any ideas? __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

10-31-2012, 06:39 PM	#10
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: 85 lwb turbo 5.3 build Screw the MAF. You don't need it for perfect drivability with a good tune. EFI Live open loop speed density on a COS5 2/3 bar operating system is what I've used for many swaps with good success. Posted via Mobile Device __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

10-31-2012, 07:06 PM	#11
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 85 lwb turbo 5.3 build IIRC most guys that run boost are running in speed density instead of using a MAF? __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

10-31-2012, 08:22 PM	#12
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build I know the guys running big boost like over 1000hp dont. Sounds cheaper to me. Not sure about the operating system or what not. Open loop though it kinda weard. Dont cars run better in closed loop cause they use all the motors sensors to figure the fuel and spark tables? I would asume anyone that can tune the motor can turn that on and off? What about mail order tunes? Are they worth the money? __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

11-01-2012, 12:08 AM	#13
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 85 lwb turbo 5.3 build 85burb, Is that the truck with the TH375?? Good trans for a boosted truck.

11-01-2012, 10:34 PM	#17
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 85 lwb turbo 5.3 build I've been a eaton/magnuson fan.....but I have to admit...Procharger has a great new boost solution. videos/power-adders/procharger-introduces-revolutionary-programmable-ratio-supercharger/ __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

11-01-2012, 11:24 PM	#18
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build Wow that is very cool. I am sure those are crazy expensive. Prices for some of the non-fancy ones are like way over 5k. I am sure that programable one is crazy high. That technology never worked real good in a transmission so maybe it will be ok on a supercharger with out the hole cars weight on it. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle



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11-02-2012, 11:11 PM	#20
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build I never said the turbo was a lot cheaper. It is more affordable for me. A few hundred here and there is a lot easier then a 5k all at once for my budget. So after finding out i will prob need speed density tune would it make sense to buy a motor that already has a modifyed harness and programed ecm that uses a maf or to just get a motor with a stock ecm and harness? __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

11-05-2012, 10:04 AM	#21
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: 85 lwb turbo 5.3 build I would go with the stock harness and ecm, since it will need to be reflashed specific to your setup anyway. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

11-05-2012, 07:30 PM	#22
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build Ok that is kinda what I was thing but had to ask. May have trucks 350 sold this weekend! Posted via Mobile Device __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

11-07-2012, 08:33 PM	#23
69trk Registered User Join Date: Oct 2006 Location: bridgecreek ok. Posts: 1,214	Re: 85 lwb turbo 5.3 build I'm doing the holley dominator efi complete kit... It's around 2500 but is self learns which would save some money from having it tuned all the time... __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81

11-07-2012, 09:05 PM	#24
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: 85 lwb turbo 5.3 build I am pretty sure my motor will be gone buy Sunday. I have 3 people interested. Who ever shells out the money first gets it. And I have a motor I want. It's a 04 5.3 so it should have the better ls2 rods in it I have read. Posted via Mobile Device __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

11-07-2012, 09:37 PM	#25
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 85 lwb turbo 5.3 build The stock Gen III engine management system is one of the greatest EFI systems ever developed. GM could buy Holley with the money they spent developing their EFI. Get the tuning right & You dont need it tuned ever again unless you change something & that's what HP Tuners & EFI Live is for. Most/Good tuners dont charge full price after the first tune.

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