thenova70ss

iTrader: (2)

Guys i am about to start my LS1 Swap i have an LS1 & 4L60e out of a 1998 T/A . I will be needing a lot of help as we go i am NEW to the LS1 World i have worked on LS1 cars but never Put a LS1 in a Older Car i have done a couple TBI change overs for Friends in a 1969 Truck and a 1985 5 speed Truck i built for me.

The Pic of the car is my 1972 Nova i have had this car for 18 years i drove it to High School took it to Prom and all the Good High School stuff you do growing up this car is like one of my Kids and i am looking to make it a Driver so i can take it on the Hot Rod Power Tour and stuff like that right now it has a 355 making about 420HP with a 150 shot of NOS but just not happy with Drag Racing any more and wont to drive the car and have fun with it and get 15+MPG.

So THANKS to any one that helps me with this Build i know i am gone to NEED it .

70Nova SS

First your going to need about $6k-$9K depending on how crazy you get. Used parts save the most money and you'd be surprised what a little spray paint can do. When I did my swap 4 years ago there weren't as many parts available. There are several stickys at the top of Conversions and Hybrids that helped me with my swap. Now there are several Novas on LS1Tech.com to help out also. If you do a search for what you want, 9 times out of 10 its been asked before. Good Luck, my swap took about a year tracking down parts and time to work on it, should be quicker for the new guys to do an LS swap.

thenova70ss

iTrader: (2)

THANKS 70Nova

I got the Motor and Trans i am sale the motor thats in my car to pay for the LS1 its out of a 1998 T/A one thing i need to know and have not found is can i use a Wiring Harness and ECM out of lets say a 1999 Up on the 1998 i have been looking but have not found out yet if i can use a Newer Harness and ECM.

I have a guy here in Arkansas that is gone to do the Harness for the Standalone Operation and he all so said he can Flash the ECM for me.


All so have some frinds that work at S&P so i think i can get a good deal on some of the parts i need from them.

THANKS GUYS.

crosstraining

iTrader: (1)

https://ls1tech.com/forums/conversio...ap-thread.html

thenova70ss

iTrader: (2)

THANKS Crosstraining but most of those Threads are not finished and are like a Year Old. I will get some more pic of my car and motor in a couple of weeks i just Ordered some Headers off of Ebay some made by Kook's has any one ever used header's by them on there LS1 Swap.

I all so called S&P to day and talked to one of my Friends that works there and i ordered some motor mounts and Dip stick and some other parts i need.

70Nova SS

S&P has some nice stuff but, can be kinda pricey. I used one of their wiring harnesses for my 5.3 swap and was less than impressed. They sent me a LS1 harness from another company so they're just a middle man so don't expect any questions answered if something isn't right. The LS1 harness didn't work with my setup(5.3/4L60E) because on 5.3 motors the O2's are grounded @ the PCM and not the sensor. Took me several months and calling a couple people to work it out. Speartech answered all my questions even when they didn't have to. Don't personnally know the guy but if I ever need another wiring harness that I won't have to cut up to make work, I'm calling Speartech.

deuce4935

iTrader: (2)

Yes you can use the 99+ harness and pcm on your 98' engine.

thenova70ss

iTrader: (2)

What do I need to do to use the 99 and newer ecm and harness? I know my motor is drive by wire that should make the swap Ezer

frojoe

iTrader: (10)

The info is still valid tho

-TheBandit-

iTrader: (1)

Did you put '68 fenders on that? The marker lights aren't right for a '72.

thenova70ss

iTrader: (2)

nope just used the 68 markers I liked the look of them more. And I would tell all the people that rode in it that it was just a little 307. Lol

LS1MCSS

iTrader: (18)

What part of Arkansas are you in? Your motor should be drive by cable, not wire. The temp sensor is different on a 98 than 99 and newer. If you go to a newer harness/pcm you'll need to change it.

thenova70ss

iTrader: (2)

I am in south west Arkansas little town called Kirby its about 40 miles south of Hot Springs. Yep I should have side Cable was not thinking.

jomomma

iTrader: (39)

other than the temp sensor, i think i had no other problems swapping in an 01 fbody haness and pcm. your tuner will thank you for that swap!

thenova70ss

iTrader: (2)

So all i should need to change is the Temp Sensor? And you used a Harness out of an 01.

This is the Info i am looking for if that all that needs changed then i will just get a EMC and Harness out of a 01 are newer.

What year did they start the drive by Wire on the LS1 motors?

jomomma

iTrader: (39)

yes, get a 99-up temp sensor. all fbodys were cable driven throttlebodys. i think 04 is when they started drive by wire.

brngrhd

is that the only difference? all other sensors are the same? same crank tooth count?

thenova70ss

iTrader: (2)

THANKS for all the GREAT Info Guys i am looking on Ebay a guy will make me a Harness for a 99 up LS1 for $350.00 and i found a Guys that sales the 99 ECM and will Flash it all for 135.00 so i will have in the Harness and ECM is $490.00 and that not to bad at all.

I am thinking i can get all this done for around $2000.00 Bucks found the Flue Pump on ebay for $99.00 Walbro 255 Inline Pump and found the Corvette Filter for 38.00 bucks.

I have a Fuel Cell in my car now with two Lines one i used for my NOS and the other one was for the Fuel pump so the Fuel hook up is no big deal and i have a B&M shifter so that all ready to go looks like i just need to get all the parts here and start some work.

jomomma

iTrader: (39)

the relucter tooth count is the same for fbodys. i think it was different on later years. you might look at the classified section on the board here for a harness and pcm. you can get the pair a little cheaper sometimes.

jomomma

iTrader: (39)

i think you might come out a little cheaper also if you let a tuner like frost (tunedbyfrost.com) sell you a new pcm with the correct tune in it for your application. you can go to his website or pm him here.