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Old 11-08-2012, 09:36 AM   #1 (permalink)
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DIY V8 build old school style

Well after months of planning and aquiring parts i started the project
My V8 conversion using a mixture of old school power and new technology.

Plan : pull the LE5 and drop a carbureted 350 V8 with 700r4 manual shifting capability automatic.

I wanted to control the engine and bolt ons with new circuits and let the existing computer control the inside of the car as well as lighting systems and safety features

The car is almost complete just working on small issues while I drive it to work in the day time.

The original time limit was 9 days to do the conversion but after some delays it has taken longer than anticipated but defintely worth the wait when it fired up



I dont want any flaming or negative comments cluttering this thread! I built it the way i wanted it.
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Old 11-08-2012, 09:42 AM   #2 (permalink)
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Here is the beast awaiting it's new home
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Old 11-08-2012, 09:45 AM   #3 (permalink)
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Sounds like fun to me! cant wait for more pictures and video!
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Old 11-08-2012, 10:07 AM   #4 (permalink)
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Dang! Man! Good for you!

I'll be fascinated to learn how you integrate the 'old' engine with the car's ECM/BCM. Please give all the details you can. Thanks!
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Old 11-08-2012, 11:19 AM   #5 (permalink)
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The carb fit under the hood?
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Old 11-08-2012, 12:46 PM   #6 (permalink)
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The carb fit under the hood?
It does under the rk sport hood
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Old 11-08-2012, 01:08 PM   #7 (permalink)
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Sounds like fun to me! cant wait for more pictures and video!
This will be very interesting!!!
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Old 11-08-2012, 02:53 PM   #8 (permalink)
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More info! Sounds like it'd be sweet but have ya' got a video to show us?
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Old 11-08-2012, 03:21 PM   #9 (permalink)
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More info! Sounds like it'd be sweet but have ya' got a video to show us?
I do have videos but I am posting the build pics and leading up to that

What most people don't know is that the factory SBC engine mounts are spaced as wide as the LS series V8 but the SBC mounts sit forward about 3 inches. I had to make custom mounts to allow the engine to sit under the hood in the same relative location as the LE5
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Old 11-08-2012, 03:23 PM   #10 (permalink)
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Here is the mock 350 block i used to make mounts and prefit everything the mock block only weighs 15lbs

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Old 11-09-2012, 09:49 AM   #11 (permalink)
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What's the power output?

I assume you live in an area that doesn't require smog testing. Around here you are not allowed to install an older engine than the year of the car (unless it looks right - any FI SBC would probably be allowed in any car that was of a year after they went to FI, but no carbbed motors).
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Old 11-09-2012, 10:03 AM   #12 (permalink)
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Kept it mild only 365hp 410 torque yeah no smog testing here but i wont have to worry anyway the next addition is dual fuel either propane or gas i wouls pass with propane
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Old 11-09-2012, 10:32 AM   #13 (permalink)
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Congrats on your project. My question is what is your goal here? Do you want to make your ride track worthy or like me just want V8 power and great sound? Actually the best sounding engine I've heard is a small block with a four barrels and a wild cam that has a mean crackle while idling. I am really interested to see how well the V8 swap will go and getting some good info. Good Luck
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Old 11-09-2012, 10:42 AM   #14 (permalink)
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Kept it mild only 365hp 410 torque yeah no smog testing here but i wont have to worry anyway the next addition is dual fuel either propane or gas i wouls pass with propane
You're lucky! Here they inspect and if you have any changed or missing smog equipment (e.g. CAT) you fail even if your emmissions are below the limit - makes no sense, I know. I've been running a turbo on my 88 Fiero for 20 years and they've only noticed it once and when asked I just said 'They came that way' and the minimum wage kid plugging in the test gear believed me.
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1958 MGA Twin Cam (race car)
1962 MGA Deluxe Coupe
1965 Jensen CV8
1969 MGC roadster
1969 Lamborghini Islero S
1971 Jensen Interceptor
1988 Pontiac Fiero GT
2009 Pontiac Solstice GXP Coupe

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Old 11-09-2012, 11:11 AM   #15 (permalink)
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The party is over in CO. We now have State owned and operated Dyno emissions machines. They plug into the computer and check the code history. And believe me, as soon as they opened the hood on your project; they would probably impound your car.

On a side note: You haven't lived until you watch the State of CO run your car up to 70 MPH on a Dyno and the only amount of safety precaution they take is a tire block in front of one front tire; not even the hint of a strap to hold the car down. I had the audacity to question them once, and I was honored to receive a second tire block in front of the other tire.


This is a very cool project, I look forward to seeing the finished product.
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