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Post Info TOPIC: 1991 V3500 Engine Rebuild/Upgrade



- Mike -
Puyallup, WA


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1991 V3500 Engine Rebuild/Upgrade
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Yes, most hose ends are female but I have seen male ones out there on Summit's site. A male to male union fitting is also cheap.

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

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



-Urethane Dave - Alger, WA Moderator

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ehjorten wrote:

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


 Is this what You are looking for?

https://www.summitracing.com/parts/vpe-24006/overview/

 

 



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Dave P.

Resident Giant
11.44 @ 118.43



-Urethane Dave - Alger, WA Moderator

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Posts: 4377
Date:
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ehjorten wrote:

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


 Is this what You are looking for?

 

I can't make a link work. Go to Summit and search this, Vibrant Performance Hose End Fittings 24006, it's a -6 male hose end.

 

 



-- Edited by Dave on Wednesday 5th of July 2017 09:51:45 PM

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- Erik -
Snohomish, WA


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Posts: 434
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That looks like what would work Dave! However, I am going to use the teflon lined hose, so I need the fittings for the teflon liner. I guess I'll just use a -6 Union fitting. Thanks though!

I did get a few things crossed off of my list last night...
New oil filter for the LS, filled with oil and installed
Rear 2-piece driveshaft is all installed and lubed
Converter bolts are all installed and torqued
Gear shift mechanism all re-installed and adjusted
Transfer case shifter all installed and lubed

Only about 50 more things to do before this pig gets fired-up!

Ben...you beat me!



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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


-Urethane Dave - Alger, WA Moderator

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Yup, no Aeroquip male hose end, so a union it is.

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Dave P.

Resident Giant
11.44 @ 118.43




- Erik -
Snohomish, WA


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Posts: 434
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Went through the intake valley and installed a new gasket and knock sensor grommets. Did the LS knock sensor TSB. Checked the knock sensors then put a loop of RTV around the valley cover at both knock sensors. Left the back section open for any water to escape. I left the rear foam block on the intake manifold, but once I installed the intake and examined the installation I thought better of it. I was able to remove the rear foam block with the intake manifold installed!

Intake Manifold Installed



-- Edited by ehjorten on Saturday 15th of July 2017 04:16:49 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



- Erik -
Snohomish, WA


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Posts: 434
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Trial fit my Schoenfeld 1302LS1 headers this weekend...and they fit like crap!!! Not sure what to do now?!

The driver's side actually fit great, with excellent plug access and could use the stock spark plug wires with the aluminum boot shields. However, the collector was too high and tight to the gear selector linkage! It needs to be about 3" lower and it would be perfect! The slip fit collector is going to rub on the linkage and there is no room for engine and chassis movement. Put a V-Band flange on it and forget it!!! The O2 sensor bung was totally in the wrong location and would present an installation and fitment challenge!

The passenger's side was totally frustrating!!! I could not fit it between the engine and frame-rail! The engine is totally centered and in the stock location, but it was a no-go!!! I couldn't even evaluate the fit, except that it wouldn't!

Schoenfeld says these headers fits: 1967 to early 1999 Truck. Says fits K10 Chevy Blazer 4 wheel drive. If that were the case then they should fit my 1991 V3500 just the same!

It is so frustrating because I had the stock Big Block 454 in this truck with this 4L80e transmission and full length headers and they fit in the truck and you could install them and remove them without lifting the engine.

What to do now???

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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
Date:
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Standing back and looking at the thing...and then using my phone inclinometer app, I realized that my engine is sitting with about 4° rearward slant (that's great!) and is heeled-over to the passenger's side 2°?! With the intake manifold on, I can see it more clearly. The top of the intake manifold is off of the centerline of the firewall by about an inch. I wonder if my frame is slightly off, or if just all of the bolt holes and fasteners have enough slop for it to tilt that much?! It won't solve all of my header issues, but maybe it will allow the RH header to fit?

__________________
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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