LS Engine Fuel and Spark System

As you all know, we picked up our project engine from Dave's Goldenwest Truck wrecking yard. With a surplus of these engines at their disposal, they had what we needed at the right price. After the trip to the wrecking yard, we tore into the motor and realized that these engines are in better shape than most people would like to think they are.

Over the course of the last two issues, we have touched on several aspects of an engine rebuild. We discussed obtaining the engine block, installing the Holley/Weiand intake system, and setting up the engine's bottom end. To help in these various build processes, we used Milodon equipment to protect the engine. The Milodon Oil Pan is also shorter than many of the industry's aftermarket solutions, making it ideal for Lowriding because it doesn't hang bellow the car frame.

It's been an interesting build up, as the more progress we make, the more I wonder why people are so intimidated by engine rebuilds. This is part of the reason that we decided to do it ourselves and document the build, in order to show you guys what it would take to prepare one of these engines before transplanting it into your ride. As I mentioned in the last issue, we plan on showing you everything, including the obstacles that we encountered while getting this 5.3 engine together. We knew we were going to need to make a few trips to our local Chevrolet Dealer to purchase some of the necessary dealer-only items, but that is not as bad as it sounds.

This month, we will show you the fuel and spark system, as well as the process of replacing old sensors with new sensors. Now follow along, as we work on this LS technology.

Note: As of right now we have a total of 32 hours invested into this junkyard jewel We have made a few trips to our local Rotolo Cheverolet dealers as well as to our local auto parts.

1 Our 5.3 that we picked up from Dave's Goldenwest was ready to be worked on.
1 Our 5.3 that we picked up from Dave's Goldenwest was ready to be worked on.
2 As we are completely refurbishing the engine, we needed to polish these old valve covers.We took our valve covers to Victor's Polishing in Pomona, where we knew their crew would make sure to send them back in a show-quality finish.
2 As we are completely refurbishing the engine, we needed to polish these old valve cove
3 The old crank shaft sensor was replaced to make sure that the engine computer received the right data while running.
3 The old crank shaft sensor was replaced to make sure that the engine computer received

4 Since the engine was going to bolt up as a stock 350, we installed these Holley engine mount relocate brackets. These brackets will place your motor mounts as if it were a stock 350 engine.
4 Since the engine was going to bolt up as a stock 350, we installed these Holley engine
5 As you can see, the tapered Allen wrench bolts will remain flat, and now you can add your 350 motor mounts.
5 As you can see, the tapered Allen wrench bolts will remain flat, and now you can add yo
6 The stock fuel rails were removed when the intake was updated.

7 The injectors were placed onto the intake.
8 The Professional Products fuel rail slipped on, leaving the fuel system to be assembled in sections.
8 The Professional Products fuel rail slipped on, leaving the fuel system to be assembled
9 To feed the air into the intake, we used a Professional Products throttle body, which helps to combust the fuel in the intake.
9 To feed the air into the intake, we used a Professional Products throttle body, which h

10 These sensors need to be transferred onto the new throttle body.
11 The fuel rail bridge composed from flex fuel line will feed the other injectors. This line can be updated with hard-lines once the engine is ready and running.
11 The fuel rail bridge composed from flex fuel line will feed the other injectors. This
12 Since this engine was being set up with a mechanical throttle body, we had the chance to use a Lokar cable bracket that will be modified once we have our transmission dialed in.
12 Since this engine was being set up with a mechanical throttle body, we had the chance

13 These little things make dressing up an engine so easy.
14 The fuel system was complete and waiting to be fed with fuel.
15 The polished valve covers that we received from Victor's Polishing were ready to dress up this engine.
15 The polished valve covers that we received from Victor's Polishing were ready to dress

16 For spark we used MSD's ignition coil packs.
17 To hold the MSD coils, we used Hamburgers' LS1 coil bracket, which not only looked good, it also cut down the weight.
17 To hold the MSD coils, we used Hamburgers' LS1 coil bracket, which not only looked goo
18 The assembled coil and brackets were bolted down and went on with ease.
18 The assembled coil and brackets were bolted down and went on with ease.

19 To assure a strong spark, we used the MSD spark plug cable.
20 The fuel and spark components were assembled, getting us closer to completion. This engine will be completed and ready for Dyno tuning in no time!
20 The fuel and spark components were assembled, getting us closer to completion. This en

SOURCE
MSD Ignition El Paso 915-857-5200 www.MSDIgnition.com	Weiand www.holley.com
Lokar 10924 Murdock Drive Knoxville TN 37932 877-469-7440 www.lokar.com	Dave's Goldenwest Auto Wrecking 6972 Garden Grove Blvd. Westminster CA 92683 714-898-4343
Milodon Inc. 2250 Agate Court Simi Valley CA 93065 805-577-5950 www.milodon.com	ARP Fasteners 1863 Eastman Avenue Ventura CA 93003 800-826-3045 www.arpfasteners.com
Professional Products 12705 South Van Ness Avenue Hawthorne CA 90250 323-779-2020 www.professional-products.com	Hamburger Performance Products 12438 Putnam Street Whittier CA 90602 562-921-0404 www.hamburgersperformance.com