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Post Info TOPIC: 1991 V3500 Engine Rebuild/Upgrade



- Erik -
Snohomish, WA


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1991 V3500 Engine Rebuild/Upgrade
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In case anyone missed it, I now have the Comp Cams LS crank socket and the AlignIt tools from SacCityCorvette for aligning the front and rear covers. I need to get updated adapters for my cam measuring fixture so it will fit the LS Metric bolt holes.

I have been thinking about milling the heads about 0.030" off to bump up the compression on the LQ4, but thinking about putting it all back together and measuring pushrods, then ordering custom pushrods has me a little put off on the time and delay to get it all done. I have some Comp Cams pushrod length checkers. Not sure if they are the right size and length. They were for Gen I stuff. - Checked...I got 5/16" Comp Cams Length checkers in like 5 different sizes, so I am good to go!

Anyone ever done this on non-adjustable valve-train? I hear you get it set for zero-lash when everything is together and then look for like 0.050 - 0.080" preload on the stock lifters? The idea of doing this seems to push my timeline back a few weeks when I am trying to get the engine put in the truck.



-- Edited by ehjorten on Monday 6th of March 2017 04:13:33 PM

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Mike -
Puyallup, WA


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In regards to your post before today, I installed Lunati Dual Gold valvesprings to match, can check the PN# if you like.  I had the stock cam re-cut @ .591" lift at the valve(.600" is the max for stock rockers) and duration is 220something/230something @ .050".

I would think your directions for measuring and pre-load for pushrods are good.



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'67 Chevelle -- 383ci, Jerico DR4, S60 3.54

'70 Camaro -- In the works TT 6.0L, 4L80E, 12 bolt ??? ratio




- Erik -
Snohomish, WA


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Checked P/V clearance with clay. The Clearance looked awfully tight to the naked eye, but putting a caliper on it, it does have room to take about 0.030" off and still have at least 0.080" on the Intake and 0.100" on the Exhaust.

Dropped the heads off to have the valve seals redone, springs swapped to LS6/LS9 valve springs and mill a little off. Not going to go enough to require new pushrods. Probably push it up a couple tenths to 9.6:1. Good enough for a big truck.

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Erik -
Snohomish, WA


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Posts: 434
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Brought my DBW Pedal into work and powered it up with an adjustable DC power pack. I confirmed that my pedal is wired correctly and sensor 1 and sensor 2 are within the proper output voltage range that the 2004 TAC module requires.

Now I am certain that my 1999 6.5 Turbo Diesel pedal will properly interface the 2004 LS and that I re-pinned the pedal connector properly. A few pin swaps into the correct connector cavities according to the diagrams for the 1999 and 2004 pedals was all that it took.

I am starting to dive into the wiring nightmare on this project.

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Erik -
Snohomish, WA


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Posts: 434
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Anybody know a good place to get fuel hose assemblies reworked? I have my factory hardlines that have rubber hoses crimped to them. Mainly it is just a few inches of hose that ties into the fuel tank selector. With putting in the LS engine and the higher HP, I am weary of just reusing the stock, 25 year old hose with those hardlines.

I would like to cut-off the crimped ferrule, remove the old section of fuel hose and crimp on a new one. I really want to keep as much of the stock hardline as possible and just adapt it to the LS. I know I could just run long length of AN line and fittings, but that is kind of bulky and more expensive. I have seen people cut off the ferrules and then use those Oetiker clamps to secure the new hose. I could do that and I have the Oetiker crimpers. It seems that an A/C shop that makes custom A/C lines would be close to what I was looking for.

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted


- The Craigslist Ninja -

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On the fuel line, can you cut the rubber section ofF and slide an -AN collar and fitting and flair to adapt your hard line to -AN?



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12.03 @ 113.5 mph
11's here I come



- Erik -
Snohomish, WA


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Posts: 434
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Eric;

What you do is saw cut with a hacksaw blade or a dremel with a cutting wheel...butterfly the existing crimp connector and then you can pull the old hose off. Finish removing the crimp collar and then it is ready to redo with a new hose and crimp collar. places like Russell do make a special fitting that goes over the shoulder part of the crimp and you can fit on an AN line. You might have to cut-off the barb at the end of the line. It is really made for adapting to quick-connect hardlines.

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- wondah whooooaman-
Colorado Springs


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LostNFound66 wrote:

On the fuel line, can you cut the rubber section ofF and slide an -AN collar and fitting and flair to adapt your hard line to -AN?


Yes, I can post some pics if you need them. 



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Mark
69 Chevelle SS
"Carpe Jugulum"
"Only those who have never learned self-restraint fear reasonable discipline" T.R. Fehrenbach

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Ben


- RAMBO -Mill Creek, WASite Administrator

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The thrashers corner napa advertises that they make hydraulic lines... Not sure if that would be good enough for what you want.


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Ben R.

1968 Chevelle 300 - 454 / 4spd




- Erik -
Snohomish, WA


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I think I'm just gonna be going the Oetiker clamp route. I did find what I think is the correct crimper and ferrules. The guys that run in the Porsche Concours circles are using them to make new fuel lines for cars they really care about correctness on. The tool however is a little over $1,500 and the crimp collars are about $5 a piece!

I did see a guy that was making his own crimps with a die set he made for use in a standard press and I also found a tool that fits in a vise and has separable dies. I thought I could make my own die, but too much effort for no real gain!

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Mike -
Puyallup, WA


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Posts: 2529
Date:
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It may just be easier/more cost effective to have Inline Tube make you a set of replacement hardlines in stainless steel with an AN fitting on it...or do your own from a bulk 20ft section if you have an AN flaring tool.



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'67 Chevelle -- 383ci, Jerico DR4, S60 3.54

'70 Camaro -- In the works TT 6.0L, 4L80E, 12 bolt ??? ratio



- Beemer Brett - Redmond, WA

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Personally I would run steel braided teflon lined hose with an fittings.


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1966 Chevelle, 1972 K20, 1967 GTO, 1955 210 Coupe, 1969 Chevelle




- Erik -
Snohomish, WA


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Posts: 434
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Not really a fan of AN fittings unless it's a race car or show car. With AN you need a different adapter for every different connection, the fittings are bulky and it gets pricey.



-- Edited by ehjorten on Wednesday 24th of May 2017 06:56:25 AM

__________________
Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Erik -
Snohomish, WA


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Posts: 434
Date:
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Been finishing up the fuel tank installs and routing hoses and fuel lines.

Now I am making some GM Quick Disconnect flares to go between the Corvette Filter Regulator and to the LS fuel rail!

KZqBAOTljP2AwxbKjk5_OJDqT0-9MAoIt9sQQKpE



-- Edited by ehjorten on Friday 23rd of June 2017 09:18:45 AM

__________________
Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted


- Beemer Brett - Redmond, WA

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Nice tool!

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1966 Chevelle, 1972 K20, 1967 GTO, 1955 210 Coupe, 1969 Chevelle




- Mike -
Olalla, Wa


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I like the tools!

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http://www.u11racing.com

'66 SS Chevelle LQ4/4L80E

'65 Malibu SS (Best of 10.86 @ 125mph 1.51 60')

'65 GTO

Ben


- RAMBO -Mill Creek, WASite Administrator

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Looks like it can do that kind of form!

did you get the 37 degree AN die as well?


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Ben R.

1968 Chevelle 300 - 454 / 4spd




- Erik -
Snohomish, WA


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This kit has 45° Double Flare, GM O-Ring Fuel line flare, Push-connect, and the new Metric bubble flare. No AN Dies, but I could get those.

__________________
Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Erik -
Snohomish, WA


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Posts: 434
Date:
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Well...major progress in the last few days! I got my fuel system all finished...just need to run the AN line from the frame up to the fuel rail. This LS is a returnless system, so I am running the Corvette filter/regulator mounted in the rail and then only need to run one line to the engine.

I got the engine final mounted in the truck, transmission installed and transfer case installed! All of the heavy bits are in their home and everything lined up and fits rather nicely!

I also spent and entire day pouring through my truck wiring manual and figuring out which wire is which, labelling wires, pulling my cruise control wiring out, removing the stock cruise control module and vacuum line, and removing the entire powertrain wiring harness and stock PCM.

Oh, and I also put my steering column back together with the new Cruise control stalk.

__________________
Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted



- Erik -
Snohomish, WA


Status: Offline
Posts: 434
Date:
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Trying to figure out my flex-line for fuel from frame rail to back of intake manifold and I'm getting confused...

So I have a new line bent and ready to jumper off to the GM Quick Disconnect on the LQ4 fuel rail. It is a returnless system, so I only need the one -6 AN line from my 3/8" hardline in the frame.

So...what I have seen is that I need a tube sleeve and tube nut for the 3/8" line. Eric Waugh had those that he gave me; thank you Eric!

Earl's makes a really nice GM QD Connector that has the metal retaining barbs and the secondary clip, so that is figured out.

What is not figured out and is giving me some grief is the components that I need for the line. It seems that all of the hose ends are female, but I need a male hose end to connect to my tube nut?! I don't have a lot of experience with AN lines, so what gives? Do I need a male to male adapter?

Thanks for any help!



-- Edited by ehjorten on Wednesday 5th of July 2017 11:21:18 AM

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Erik
'69 Chevelle Sport Coupe, EFI355, TH350
'68 Chevrolet C10 Stepside Project, 292, t-56, C4 IRS (project)
'77 Chevrolet K20 Silverado LWB, 400CI, TH400
'91 Chevrolet V3500, TBI Gen V 454, 4L80E, Lifted
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