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Post Info TOPIC: LQ4 conversion, Take II


- Big George -

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LQ4 conversion, Take II
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getting it done!


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George Kettler

SOLD 70 Elky 496/th400 3/.90
68 RatVette
68 Camaro Ragtop




- Erik -
Snohomish, WA


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What headers are you running on that, and how did they fit? The ones on my '91 Crew Cab are not fitting very well, and people say the Schoenfeld headers fit so great! NO...No they don't!

The driver's side header fits pretty good, but the collector is WAY too tight to the gear selector mechanism for my 4L80e. I've got at least 3 more inches it could drop and still be above the bottom of the frame rail.

The passener's side has plenty of room, not sure why they made the headers all sweep back, right on top of the transmission bellhousing ear?! I guess it is to give room for the starter, but I think you could route them a different way and still have room for the starter. I don't really want to sawzall off the ear of the bellhousing like people say you have to do.

I would think that whatever you are running would fit for me too!

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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 -
Olalla, Wa


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Sorry for the late response Erik. These are cheap stainless headers from eBay. I'll have to look up the seller.

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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400




- Mike -
Olalla, Wa


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Took the radiator out of box today and bolted it up, fits great!

I need to decide what to do about fuel line before mounting the tank. I'd like to use the stock 3/8 hard line, but not sure about the higher pressure and slip on hose with clamps? I'd also have to cut the line about a foot shorter up front and attach the soft line to the rail. Maybe flairing the end and hose clamps would be sufficient? Anyway, very many little items still need done, rad hoses, power steering lines, water temp gauge fitting adapter, wiring, et.

 

Also mounted up the race car passenger seat, just need to string the belts through and figure out a mount for the headrest.



-- Edited by 66SSFan on Monday 14th of August 2017 05:49:25 PM

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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400



-Urethane Dave - Alger, WA Moderator

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Nice!

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Dave P.

Resident Giant
11.44 @ 118.43



- The Craigslist Ninja -

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Dave wrote:

Nice!


 x2



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- Mike -
Olalla, Wa


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Vaporworx tank is in.



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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400



- Beemer Brett - Redmond, WA

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Damn that's a nice setup. I need to drop my tank as sending unit seemed to stop working and I think hose from pump is letting pressure drop. Engine hard to start slightly.

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



-Urethane Dave - Alger, WA Moderator

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That is nice.

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Ben


- RAMBO -Mill Creek, WASite Administrator

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So is that tank baffled/trap doors/ inside as well as the internal pump?

Very nice!



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Ben R.

1968 Chevelle 300 - 454 / 4spd




- Erik -
Snohomish, WA


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I would say from the looks of the sending unit top, that it is a modern venturi sump module. No need for baffling in the tank. The fuel pump sits in it's own sump that is filled with fuel via a venturi jet that fills the sump from the main tank.

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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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The Parker fleet is getting almost as large as the Berg fleet!



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

http://www.chevelles.com/showroom/data/500/showpic1.jpg
http://www.chevelles.com/showroom/da...ium/motor2.JPG
http://www.chevelles.com/showroom/data/500/breakout.JPG



- Mike -
Olalla, Wa


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ehjorten wrote:

I would say from the looks of the sending unit top, that it is a modern venturi sump module. No need for baffling in the tank. The fuel pump sits in it's own sump that is filled with fuel via a venturi jet that fills the sump from the main tank.


 This. 

Its a 2010 Camaro pump in an internal surge tank like the OEM uses. Returns over-pressure internal, no return line needed. Guys on LS1tech claim down to 1/2 a gallon on the track before surging!



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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400




- Mike -
Olalla, Wa


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Any opinions on fuel line? Should I run my factory 3/8 hard line with rubber hose at each end? The engine side hose would have to be long and run over the back of the engine to connect at the rear driver side rail. Or run a new hard line on the drivers side front to back and use two short pieces of soft line? Or run all new soft line front to back?

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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400



- Beemer Brett - Redmond, WA

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I'm a big fan of teflon lined stainless braided hose with an fittings.

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



-Urethane Dave - Alger, WA Moderator

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Brettd85 wrote:

I'm a big fan of teflon lined stainless braided hose with an fittings.


 You'll be time and money ahead by just using Aeroquip Teflon stainless hose. That is what I redid the fuel system on the Chevelle with 5 years ago. Lot easier then trying to adapt. With the pressures the LS needs, I don't think I'd even try rubber.



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- Mike -
Puyallup, WA


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If you feel up to it you could put a SS hardline and clips for a '66/67 GTO in there (driver side fuel line for a Pontiac V8) from Inline Tube. I would cut the ends of the hardline (farther back for the front portion), flare and do the AN hose route.

Fairly reasonable to do it that way with high quality components and it will fit like factory.  Not to mention you never know what the inside of the original hardline looks like.



-- Edited by cobaltchev67 on Wednesday 16th of August 2017 03:50:32 PM



-- Edited by cobaltchev67 on Wednesday 16th of August 2017 05:32:37 PM

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'67 Chevelle -- 383ci, Jerico DR4 4 speed -- 3.19 1st gearset, Gear Vendors Overdrive/Underdrive, Strange S60 w/3.54 gears

'70 Camaro -- In the works TT 6.0L, 4L80E, ??? rear end 




- Mike -
Olalla, Wa


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20' of PTFE -6 hose is $179 from summit!

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'66 SS Chevelle LQ4/4L80E

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

'65 GTO 455/th400



- Beemer Brett - Redmond, WA

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Yes, but a few fittings and clamps and you are done. Long lasting leak free line.

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




- wondah whooooaman-
Colorado Springs


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66SSFan wrote:

20' of PTFE -6 hose is $179 from summit!


 I'll give ya $200 for the goatbiggrin



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

http://www.chevelles.com/showroom/data/500/showpic1.jpg
http://www.chevelles.com/showroom/da...ium/motor2.JPG
http://www.chevelles.com/showroom/data/500/breakout.JPG
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