March 18, 2025, 08:14:38 PM

Author Topic: Jim's 87 5.3 th350 carb build  (Read 2748 times)

Offline SbcJim

Jim's 87 5.3 th350 carb build
« on: May 08, 2011, 08:05:26 PM »
When I first bought the car, nearly 9 years ago, it was a bone stock N/A 4 lug car.  I bought it from a neighbor when I was 15 and was given a decent deal on it.  Originally the car was a pile-it was not very well taken care of, rust was starting in the rear quarters, and there was a dent that a basketball would fit in the rear driver's quarter.  Because I wanted a car that was built not bought, I did the majority of the body work and repainted it in a makeshift booth.  The car looked pretty good especially for some high school kid doing the work-me.  A picture of which can be seen below.



The next thing was to address the horsepower.  When I was 17, I did a TII engine and tranny swap.  I did multiple mods to the car and it was pretty quick, but not quick enough.  I pulled the engine and tranny to do a complete build-full bridge, B.W. S462, Tial 40mm, custom SS exhaust manifold, N20 progressive injection, meth/h20 injection, etc. etc. etc.  When I got the car running and going I was going to get it tuned.  What I quickly found is that not many people wanted to tune the car because of all the mods done to it.  I was always told it was a ticking timebomb  that would most likely not make it past dyno tuning.  So, instead of traveling to a reputable tuner, I said piss on it and parted it out. The picture of the engine bay can be seen below before the part out.



I decided to go with the Lsx platform because of the reliability and $$-lets face it, they're cheap.  I bought the 5.3 for $250 from a local salvage yard with just under 100k on the odo.  I got it home cleaned it up and decided to carb it rather than EFI.  I was looking to mix the old school with new school technology.  I just did a couple of mods to it, I just want to drive the car and next winter I plan to go all out and turbocharge, maybe N20, and valvetrain upgrade.  As for mods now, I have an MSD 6010 ignition control, holley street avenger,  edlebrock single plane intake, holley blue fuel pump, f-body exhaust manifolds and a couple of other small things.  This past weekend I finally got to work on it a little bit and started it up for the first time.  I will tell you what, it is like this engine just wanted to run.  I pushed the start button once for maybe 1-2 seconds.  The car fired right up and was driveable right then and there.  I didn't have to do some dance, talke nice to the engine, crank for 20-30 seconds, etc. like I would with the rotary.  As of now, the car needs new paint, I have 5 spoke sportmaxes, I have to clean the interior, build and exhaust, and hide some wires.   With open manifold, this thing sounds like a beast.







LM7, PSI Harness, Truck ECU, LS1 Intake, SSR Long Tube Headers, Ported & Shaved 243 Heads, LS7 Lifters, S4 Turbo II Rear Diff, 4l80e, Jakes Performance Black Box, Nitrous Outlet 150 hp Shot, 228/228 TSP Cam, Beehive Springs, Pro-Sport Gauges, Autopower 6pt Cage, FD Seats....etc., etc., etc.

Offline FabChild

Re: Jim's 87 5.3 th350 carb build
« Reply #1 on: May 16, 2011, 04:09:56 AM »
Car looks real fun to drive!
1987 TurboII
Dynasty 200SD
CoolMate1... :D  https://www.facebook.com/JLRFAB

Offline SbcJim

Re: Jim's 87 5.3 th350 carb build
« Reply #2 on: May 16, 2011, 03:38:47 PM »
Its getting there.  The car is about done, I need to run an exhaust system yet-just have the manifolds, tuck the wires away, then its off to body work.  It is getting painted fire engine red.  I have a buddy that went to an auction that had 1000's of gallons of fire truck paint.  He bought several hundred gallons for $50 and gave me a couple.  It is some pretty tough stuff-the paint shop decided to close its doors after the owner died; or something along those lines.   
LM7, PSI Harness, Truck ECU, LS1 Intake, SSR Long Tube Headers, Ported & Shaved 243 Heads, LS7 Lifters, S4 Turbo II Rear Diff, 4l80e, Jakes Performance Black Box, Nitrous Outlet 150 hp Shot, 228/228 TSP Cam, Beehive Springs, Pro-Sport Gauges, Autopower 6pt Cage, FD Seats....etc., etc., etc.

Offline N2v8fcs

Re: Jim's 87 5.3 th350 carb build
« Reply #3 on: May 17, 2011, 05:17:27 PM »
are you going to spray this motor?
:drive:
new personal best 11.45 @ 120 mph N/A car...9.11 @152 mph for the turbo car.


1987 FC  355 SBC, T-5, T2 rear        retired 5-4-11
1991 FC  383 SBC, sold to Dad. Now 5.3 w 76mm turbo, G-force T-5, 8.8 Ronin rear 
1990 FC  370 CID 6.0 w 88mm turbo, Powerglide, Ronin 8.8 w 3.15 gears

Offline SbcJim

Re: Jim's 87 5.3 th350 carb build
« Reply #4 on: May 19, 2011, 07:42:07 PM »
Yeah the idea is to do a nitrous setup with some sort of valvetrain upgrade-something from TSP.
LM7, PSI Harness, Truck ECU, LS1 Intake, SSR Long Tube Headers, Ported & Shaved 243 Heads, LS7 Lifters, S4 Turbo II Rear Diff, 4l80e, Jakes Performance Black Box, Nitrous Outlet 150 hp Shot, 228/228 TSP Cam, Beehive Springs, Pro-Sport Gauges, Autopower 6pt Cage, FD Seats....etc., etc., etc.