Ch@0s Is Going LSX ... My swap

[Ch@0s]

The LS1 harness is done. I need to connect 6 12+ ING wires to the fuse block I bought and splice the wires that will be connecting to the C4 harness. I still haven't decided what type of loom I will be using. I plan on leaving the harness as is until I have worked out all the kinks. Note I left the labels on the wires I extended and labeled the end if I made a mistake I will be able to tell when the labels don't match.

[Ch@0s]

Let's talk about the fuel lines.

I ordered a Wix 33737, C5 fuel filter kit from Nook and Tranny(part# KIT-NATFFFLS1) and a an-6 3/8 quick connect for the fuel rail(part #644123) I accidentally ordered 2 but only need one.
I also had 16MM to an-6 fitting that were on my car before. I put on the return and supply hard lines.





This is how it fit. So I will use a an-6 Coupler then mount the filter where it sits and
measure my lines and order them premade. I might have to alter the heat shield but it fits in the same spot the old filter was.

[Ch@0s]

The C5 filter has an internal regulator. Only one line goes to the fuel rail. After looking at options as far as Teflon hoses go I decided to make my own.
FYI: you need Teflon hoses otherwise they will leak. Look for PTFE lines when ordering.

[Ch@0s]

Today was CK your work day. I consider this to be very important when working on wiring. Using a meter I checked all the wires for continuity and also checked that they were in the right pin location. Some of the wire colors are similar and its easy get them confused. I'm glad I did, I had two wires crossed and deleted a wire I needed. The Red 50 goes to the C4 wiring harness it needs to be connected to PCM/CCM Radio and the speedo wires on the C4 harness. oops

BTW Do not Delete the B8 PCM/CCM wire from the C4 harness you will need this.

I have 6 wires left that are ignition 12v:
2 from coil and injectors right and left.these will be connected to NJ1 ans INJ2 wires that fed my injectors before, they are fused.
2 O2 right and left they will go to the new fuse panel with 20 amp fuses.
12V to transmission and MAF will also go to new fuse panel I need to look up the fuse size.

I have 9 wires left from the PCM connectors.
Blue connector:
19 ign 12 volt switched.
20 battery always hot.
42 Cooling fan Control 1 to primary cooling fan relay.
57 battery positive always hot.
58 serial data to OBD 2 port #2

Red connector:
R9 fuel pump relay control to FP relay.
R10 Tach to Tach
R33 Cooling fan Control 2 and 3 to secondary cooling fan relay.
R50 VSS output to PCM/CCM and Speedo wires.
Heres the finished product I just need to order a little loom.

[Vette Jockey]

WOW! Great job

[PLRX]

[Vette Jockey]

[Ch@0s]

Originally Posted by PLRX

Originally Posted by Vette Jockey

I haven't touched the car in two weeks. I have however been planing and sourcing more parts. The last piece I ordered arrived today. I'm hoping to be able to spend all day on it Sunday.
I ordered
Straight Thermostat Housing for LS1 it allowed the use of a standard T-stat From CSR.
Lokar SS braided throttle cable from Jegs.
PS reservoir from TPI parts.
OBDII and VSS connectors from EFI connection.
C5 exhaust flanges from Vette Works.
Teflon SS black Fuel Line and fittings from ANfittingsdirect.
Denso O2 sensors from Rock Auto.

[Ch@0s]

I just have to say the guys at the local parts store have been great. I spent a some time looking at the radiator hoses behind the counter. Wow there are hundreds of hoses back there. After coming up empty I looked on the intraweb

I realized the stock C4 hose is the right shape and only needs like 5 inches to be perfect. With that in mind I searched for a 20" hose. I found this dayco hose #71981.


Hopefully i can pick one up locally tomorrow.

The stock bottom hose fit just right I cut off the 90 and it works nicely with my new housing.

[Ch@0s]

I spent 3 days after work looking at racks of hoses and no dice. We cross-referenced the dayco part# ordered an upper hose for a 98-02 Z28 and it fit perfectly. I also realized the heater hose that goes to the coolant reservoir is tapered at the end. I ordered a 91 stock hose I hope it works. If not I will have to fab one up. You guys with 89 or order Vettes are lucky.


I also put in my new Racetronix 255 pump. This kit is great and complete. It came with everything and some nice SS screws.

[Ch@0s]

The stock 91 hose from the coolant res to the WP worked great. My heater/radiator hoses are done with the exception of the steam line. I was going to mod the pump but I have decided to put a T in the line going to the radiator from the coolant res.
I have been away for business for a few days but look what I found upon my return.
B&M trans cooler hose and fitting and stainless Random Tech front Y with cats designed for the 97-99 C5 should bolt straight up to my manifolds. I hope i dont have to cut them up to fit. Cross your fingers.


I need to get to work.

[Ch@0s]

After about of week of trial and error I got my fuel lines done.
I flipped the fuel filter bracket and it bolted up almost where the stock filter went.I used 2 Aeroquip 90s and a union to connect the return line. I used one Aeroquip straight union for the main line. The fuel line to the rail was only a couple off feet long and runs nicely tucked against the frame rail. I'm going to clamp it in place when I run the trans cooler lines Sunday .. On a side note I was very impressed with the new style Russel quick connect to -6 AN connector. It actually screws in. I may go back and change the 2 on the filter later.

[Ch@0s]

I finished running the Transmission cooler lines yesterday. It fit nicely in between the A/C condenser and the radiator. I positioned it in front of my auxiliary fan.

[Vette Jockey]

Originally Posted by Ch@0s

I finished running the Transmission cooler lines yesterday. It fit nicely in between the A/C condenser and the radiator. I positioned it in front of my auxiliary fan.

[Ch@0s]

So I got under the car with my new cats today made made some calculations. Looks like I will end up cutting them like this and it will be a straight shot to the exhaust. Tomorrow, to the fab shop.

[Ch@0s]

I spent the day working on the car. Most of the time I spent trying to make the stock trans dipstick fit. I tried taking of the mounting tab off but in the end I kinked it and it's ruined now. I'm going to order a lokar trans and oil dipstick.

I got all the accessories on now.

[Ch@0s]

Today I installed the Lokar throttle cable. It was a pain I had to remove the drivers seat.

This first picture is the stock cable and the Lokar notice the black clip on the stock cable. You are going to want to replace the Lokar clip with it so cut your cable and replace it. You will thank me later.


You will notice in this pic I have replaced the clip and added 2 washers. The washer on the outside is a hair bigger. On the inside there is insulation around the cable so i used a washer that was just big enough to fit in the opening.



The cable fits nicely in the F-body bracket.

[Vette Jockey]

[Ch@0s]

Originally Posted by Vette Jockey

LOL here ya go:

I know you thought the manifolds were bolted up but they were just mocked up with no gasket. I took them off today and installed the Lokar oil and trans dipsticks and put them back on.
I also drilled some holes in the frame and put clamps on the transmission lines. I am not happy with the Lokar transmission line it does not like to bend. I will need to make some kind of bracket later and put it in a location where it will work better. I removed my old valve covers and replaced them with some powder coated covers. they were painted but were already starting to discolor.
Lets talk about brakes now.. I lucked out and ran into a good deal on some Baer brakes drilled and slotted rotors and ss brake lines. So tomorrow I will take a break.. an do the brakes.
Here are some pics.

Old vs new valve covers:



The Lokar dipsticks installed:



The Baer Calipers, Kinetic rotors and Goodridge SS brake lines:

[C4fan]