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68 Chevy II Build

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Old 06-01-2014, 06:12 PM
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Been doing a lot of research and absorbing what I can. I've never messed with EFI or turbos before so it's all new to me. So here is the car and it was running a high winding SBC 5k converter and 4.88s ran 10.7 @ 125 like clockwork but wasn't street able at all.
Old 06-01-2014, 06:22 PM
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I was the same as you last year started researching and picked up an lq4 built it over the winter and have been driving and tuning for a month or so . love it. it is the best thing I ever did to my nova. drives like a new car and has power to spare. if you have any questions about ls efi nova conversions id be happy to help if I can.

good looking nova.
Old 06-01-2014, 06:32 PM
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So I pulled the 383 and sold it to get the funds rolling. Picked up a 90k mile L33 for $850 and got underway.

Pulled the stock tank and sumped it with a setup from Jegs.


Then pulled the 12 bolt out and ditched the 4.88s for some 3.42s strange 33 spline spool and a TA rear support.


A big thanks to Jarrett (Stock48) for taking the time with me to get the right parts ordered.
Magic ISKY cam
Yank 3,400
S475 96mm T4 1.1 Housing
KB log manifold
Tooley dual spring kit/pushrods
Trunion upgrade
LS7 lifters
LS9 gaskets
ARP head studs
Holley pan
Car Shop Inc mounts ( Fit Perfect engine fell into place )
Griffin radiator and contour dual fans.

That's where in at for now, updates soon to follow.



Had to notch this drivers side manifold to clear the steering box.


Last edited by 68II; 06-01-2014 at 06:41 PM.
Old 06-01-2014, 06:37 PM
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Originally Posted by yenkomike
I was the same as you last year started researching and picked up an lq4 built it over the winter and have been driving and tuning for a month or so . love it. it is the best thing I ever did to my nova. drives like a new car and has power to spare. if you have any questions about ls efi nova conversions id be happy to help if I can.

good looking nova.
Thanks man I'll definitely have a lot of questions coming once the fabrication and mechanicals are done. I'm ordering the Holley HP EFI once I get a little further along.
Old 06-01-2014, 06:40 PM
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Looks like you are in good hands.

Ron
Old 06-01-2014, 07:09 PM
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stock48 will steer you right. nice start and that's a good buy on that l33.
Old 06-04-2014, 04:32 PM
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Got a couple more things done. Fit the radiator and welded some tabs on to mount the Contour fans. Came out pretty good.


Then put the 80lb Injectors in. I used 5/8 spacers with M6 1.00 pitch 30mm long for the stock rails. Also a cable throttle body from a 02 truck.



Hope to get the intercooler and piping fitted this weekend, will update then.
Old 06-04-2014, 07:30 PM
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looks good so far, I know you have a 2in cowl on there, but would the truck intake fit under a stock hood? Also I didnt know anything about efi or wiring and that holley efi was a breeze to setup.
Old 06-04-2014, 07:47 PM
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What engine management do you plan on using?
Old 06-05-2014, 04:38 AM
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Originally Posted by turboventura
looks good so far, I know you have a 2in cowl on there, but would the truck intake fit under a stock hood? Also I didnt know anything about efi or wiring and that holley efi was a breeze to setup.
I actually have the stock hood that I'm going to put back on the car. The intake is well below the fenders, I'll take a measurement tonight and post it up.
Old 06-05-2014, 04:39 AM
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Originally Posted by 98Camarod
What engine management do you plan on using?
Holley HP EFI
Old 06-05-2014, 11:43 AM
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Looks like a great start. Keep posting pics.
Old 06-05-2014, 01:57 PM
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Sick! Another boosted nova!
Old 06-05-2014, 02:22 PM
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We know how those Nova guys are....
Old 06-05-2014, 02:39 PM
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Anyone else that's done a Nova, what should I get to do the throttle cable and pedal setup? The car has a mechanical throttle with linkage now so I don't know if the later ones used a cable pedal setup? Thanks in advance for any info.

* Also I have the throttle cable bracket that mounts on the intake from that 02 silverado, if that helps any with cable selection.
Old 06-05-2014, 02:49 PM
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My 69 had a cable throttle. I think you can get a pedal assembly from the later nova or maybe a Camaro.

I broke down and bought the Lokar LS cable. They make quality stuff. I'm sure others can tell you what stick GM cable can be used.
Old 06-05-2014, 02:52 PM
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Ok cool thanks, did you use the stock bracket or does it come with a new one? Thanks
Old 06-05-2014, 03:27 PM
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My 72 is cable as well.
Old 06-05-2014, 08:39 PM
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Originally Posted by 68II
Ok cool thanks, did you use the stock bracket or does it come with a new one? Thanks
I have a ProFlow intake and it came with a bracket
Old 06-05-2014, 11:15 PM
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cool build.. looking forward to the results of another nova guy..
im trying to plan out how to get an intercooler in my 67 now..lol never enough


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