LQ4 into a 3rd Gen/1972 Nova
Thread Starter
Joined: May 2007
Posts: 1,806
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From: Vancouver BC, Canada
Thanks for the compliments! I try to make this as clear and readable as possible with the hopes that it will help someone with a generic question or maybe a more specific problem, such as a turbo setup for a Nova
Pictures always help lots too!
Pictures always help lots too! Last edited by frojoe; Feb 7, 2011 at 12:59 AM.
Thread Starter
Joined: May 2007
Posts: 1,806
Likes: 46
From: Vancouver BC, Canada
Not too much progress to report. Back in school for my final term so away from the car, still whipped up some waterpump spacers in the school shop though...

This is the last stage that I left the hot side piping at, have to complete the merge and about an extra foot of pipe then it'll be done!

This is the last stage that I left the hot side piping at, have to complete the merge and about an extra foot of pipe then it'll be done!
I dont have much experience with my mill and it is in need of some serious alignment. I am limited on the tooling I have in my possesion. I am sure someone with your talents could do a much better job with what I have. I need to sell off my surface grinder. Its hydrualic fed. You interested??? Sell it to you cheap. Its a haus, all cast iron DoAll brand.
Thread Starter
Joined: May 2007
Posts: 1,806
Likes: 46
From: Vancouver BC, Canada
Hah as much as I'd LOVE to own a surface grinder, I simply wouldn't have the room in the garage to store it nor the money to have it shipped... sorry!
Took a weekend trip back to work on the car, got little done, but is still progress...


There is a minimum of a finger-width clearance next to the closest areas: block, a-arm cross shaft bolt, and waterpump heater outlets...

Took a weekend trip back to work on the car, got little done, but is still progress...


There is a minimum of a finger-width clearance next to the closest areas: block, a-arm cross shaft bolt, and waterpump heater outlets...

WOW! I leave the country for a couple of months and look at you go! I better get back on things or yours' will be rockin' before mine! A couple of things I thought of while catching up... When I did the alignment on my car I ended up using all of the upper a arm bolts. Meaning the A-arm pivot shaft is tipped all the way in (close to where your up pipe is) just a heads up. Also, after you finish your welding, be sure to surface your v-band flanges. they will be warped and will leak. Trust me on that. I used a belt sander (big one at custom metalcraft) On a side note I had to use the same sander on the manifold flanges for the Iltis, and it worked great. The head to manifold surface had damage. Have you given any thought to coil pack and wiring location yet? Are you going to coat your pipes? Give me a call next time you're back in town we'll get that beer.
Thread Starter
Joined: May 2007
Posts: 1,806
Likes: 46
From: Vancouver BC, Canada
Mark! You're back!!
I definitely thought of giving as much room around the a-arm cross shaft bolts as possible, and I've prettymuch pushed it to the max. There is enough room to completely remove the nut (see finger-clearance pcis) as well as tons of room in front to slip a wrench in there... I actually thoguht ahead!
Definintely going to resurface the turbo flange. My turbo came with a stainless steel gasket, will probably include that too.
As for the manifolds, they came with new stamped stainless gaskets as well, so unsure of whether or not I'll need to surface those.
The entire hotside will come off for blasting and ceramic coating (funny I have a school project now on ceramic coatings inside engines) once they're fully welded and mocked up to triple-check clearance/placement of everything.
Coil pack relocation will happen. The LS3 manifolds when flipped upside down actually give tons of spark plug clearance, especially since the plugs angle down as they exit the heads. I plan on using the bolt holes that fasten the coilpacks to the valvecovers to bolt them longitudinally (front to back) in a compact manner, then bolted to some braces supporting them to the block. Get them as low and far from hot pipe heat as possible. Most likely will require custom length plug cables though. I've seen this done a few times already and it looks compact & hidden.
Might use those insulator covers for the spark plug wires, but defintely will use them for the heater hoses coming into the waterpump there. Also on the fence about a turbo blanket or a coating on the hotside...
I definitely thought of giving as much room around the a-arm cross shaft bolts as possible, and I've prettymuch pushed it to the max. There is enough room to completely remove the nut (see finger-clearance pcis) as well as tons of room in front to slip a wrench in there... I actually thoguht ahead!
Definintely going to resurface the turbo flange. My turbo came with a stainless steel gasket, will probably include that too.
As for the manifolds, they came with new stamped stainless gaskets as well, so unsure of whether or not I'll need to surface those.
The entire hotside will come off for blasting and ceramic coating (funny I have a school project now on ceramic coatings inside engines) once they're fully welded and mocked up to triple-check clearance/placement of everything.
Coil pack relocation will happen. The LS3 manifolds when flipped upside down actually give tons of spark plug clearance, especially since the plugs angle down as they exit the heads. I plan on using the bolt holes that fasten the coilpacks to the valvecovers to bolt them longitudinally (front to back) in a compact manner, then bolted to some braces supporting them to the block. Get them as low and far from hot pipe heat as possible. Most likely will require custom length plug cables though. I've seen this done a few times already and it looks compact & hidden.
Might use those insulator covers for the spark plug wires, but defintely will use them for the heater hoses coming into the waterpump there. Also on the fence about a turbo blanket or a coating on the hotside...
this is awesome. have been thinking about a project for my son and I to do (he is 8). Definitely want a turbo'd machine that we can all cruise around in without my better half getting pissy about the fumes from gas and exhaust and such. Will try to stay in touch with this build...
Last edited by a6d9cmro; Jan 27, 2011 at 04:28 PM. Reason: don't want on facebook
Thread Starter
Joined: May 2007
Posts: 1,806
Likes: 46
From: Vancouver BC, Canada
Marktainium... No this is an aftermarket Turbonetics unit, I ditched the VGT Holset sadly because I realized it just wouldn't be close to effecient at the low boost I wanted on a 6.0L gas V8.
Turbonetics TC76 with F1 (68mm) wheel and 0.96 A/R hot side...


Much practice makes results that I kinda like!

Merge pipe all tacked together, SO MUCH time in this one...

Custom LQ4 Nova turbo hot side piping fully welded (sans wastegate flange). LOTS of time but I think the results speak for themselves, great clearance around everything and no mods to the engine bay required to fit the setup... I'm happy!



Turbonetics TC76 with F1 (68mm) wheel and 0.96 A/R hot side...


Much practice makes results that I kinda like!

Merge pipe all tacked together, SO MUCH time in this one...

Custom LQ4 Nova turbo hot side piping fully welded (sans wastegate flange). LOTS of time but I think the results speak for themselves, great clearance around everything and no mods to the engine bay required to fit the setup... I'm happy!









Your welding looks 10 times better than mine. I can't wait for a video of this car screaming down the road.

