Conversions & Swaps LSX Engines in Non-LSX Vehicles
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86 C10 LS 5 speed fun driver

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Old Aug 9, 2021 | 02:56 PM
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Default 86 C10 LS 5 speed fun driver

I caught the virus this past winter but not the one all over the news, I came down with the squarebody bug a while back after finishing my Chevelle. I've been quietly spending every waking moment I can find working on it so I haven't even started a build thread. Now that its running and driving (but not yet finished) I'll take a few minutes to share my covid build, here it is guys. I picked up this super clean rust free 86 Silverado back in March. It was a 2wd short box 305/4 speed Silverado running and driving with 108,000 miles. The original paint was peeling and the previous owner had started stripping it before moving on. I really wanted to build something clean and simple with no forced induction, stick shift, low weight and some good handling so a pickup seemed like the perfect choice. After stripping to bare metal and shaving the drip rail moldings and hood ornament I had the truck resprayed in the original light blue metallic but changed from the dark blue to a Harley Davidson silver for the top and bottom. I added the sport mirrors and 73-80 lower trim as well. The truck now has a full QA1 coil over setup in the front with 6 piston wilwoods and an axle flip in the rear while I wait to get the QA1 torque arm rear setup. The rear axle is now a Mosier full floater 9" with 4.11 detroit trutrac and 4 piston willwoods. The engine is now an ls3 based 428 stroker with GPI 281cc ported ls3 heads,GPI SS4 cam, Fast LSXR intake and Holley Terminator X efi. The trans is an AR5 5 speed with FabBot conversion kit and ls7 clutch. On the inside I replaced the dash pad and carpet but I'm waiting on a custom bench, the gauges are squarebody syndicate series from Dakota Digital. So far I could not be happier, the noises this thing makes going through the gears coming out 3" x pipe exaust and cherry bomb salute mufflers is like a childhood dream come true! Eventually I want get this thing on an autocross track and kill some cones.








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Old Aug 9, 2021 | 02:59 PM
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Clean ride!!
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Old Aug 9, 2021 | 03:06 PM
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Default Here are some before pictures

This is how I found the pickup in March and during the build these past months.














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Old Aug 9, 2021 | 04:12 PM
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That turned out great! I wish those were rust-free, up Northeast. Great find and build

Last edited by Jimbo1367; Aug 13, 2021 at 03:05 AM.
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Old Aug 11, 2021 | 05:18 PM
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Default c10 ls3

your truck looks awesome. can you please spill the beans about the suspension? im trying to decide which route i want to take on my suspension for my 1968 c10 with a ly6/tr6060. this engine tranny combo is too much thee stock suspension, even though the suspension has been rebuilt.
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Old Aug 11, 2021 | 08:51 PM
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im just running the qa1 front full coil over conversion and sway bar with wilwood pro spindles. I’m still waiting on the qa1 torque arm rear coil over setup.
I wish I had a truck arm rear like a 68.

Originally Posted by dec010974
your truck looks awesome. can you please spill the beans about the suspension? im trying to decide which route i want to take on my suspension for my 1968 c10 with a ly6/tr6060. this engine tranny combo is too much thee stock suspension, even though the suspension has been rebuilt.
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Old Apr 3, 2022 | 07:20 PM
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Beautiful truck.

what size whee/tire combo?

i am building a K5 with AR5 and wondering what shifter you used?



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Old Apr 4, 2022 | 10:57 AM
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18" wheels, 295 in the rear 255 in the front. I used the FabBot shifter with a lokar handle.
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Old Apr 26, 2023 | 06:45 PM
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Beautiful build!! I am currently LS swapping my 85 C-10, and I decided on an AR5 as well.

What transmission crossmember did you go with, and did you have to have a custom driveshaft made??

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Old Apr 26, 2023 | 09:20 PM
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Tejas steel works crossmember and custom driveshaft
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Old Apr 28, 2023 | 04:14 PM
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Originally Posted by Sodak66
18" wheels, 295 in the rear 255 in the front. I used the FabBot shifter with a lokar handle.
It's a shame they don't make that in anything wider than a 10". I love the look and would put them on my Chevelle, but they're too small
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Old Mar 11, 2025 | 09:36 PM
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Great job
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