This is from an old post, may or may not help.
From: Ft Worth, Tx
Registered: Aug 2000
posted 04-02-2001 11:34 PM
Hello every body,
I didn't die I have just been busy trying to make a living.
Well The LT1 count is now at 13 done and more in line. I was in the process of doing a
Lt4, and super charger, hoping for + or - 600 HP. I thought I had bought a new crate LT4
and intake off of ebay, but it apears I have been burned. In case any one might be
interested this guy's name is Michael Kaido, from Marietta Ga.I really need to find him or
my $ 4350.00. If any one knows anything about ebay fraud please let my know.
Now for the LT1 stuff;
The Camaro LT1 AC compressor will not clear the cross member without mods. I like the
looks of the Camaro set up better. If you use the Vette set up the Comp is not a
problem, but not as good looks wise to me.
If you use the 4L60E tranny the 4 SPD cross member is most desireable, and GM still sell
them.Even with this cross member, there needs to be a mod done to clear the tranny
pan. This will be a cut out or heat and dent from near center out toward the pass
side.You will also need to extend the shelf on the cross member that the lower side of
the mount bolts to, about 1 1/2 inches. I have the part # 3912573, $55.75 list price from G.M. dealer.The tail
housing needs to be the one with the rear mount on it. These are from the Caprice, Buick
Roadmaster, ect. The 6 spd is much more involved, to long for here.
As for the harness, I redo the GM harness, as it is a good harness. I have not started
taking just the harness in to do without the car yet.I have also thought about making up
directions. I think most any one can do a harness with help, and besides time spent on
your streetrod is NOT money spent right. But if you have to go buy an after market
harness that's money spent. Buy your engine with a harness.
When looking for your engine be sure it has the harness, accesories, air intake elbow,
mass air flow meter, flywheel, starter, and electric smog pump if your car takes a smog
If you are going to run an auto tranny be sure your setup includes the 4L60E tranny that
came with it, or that the orig set up, and ECU are for the auto tranny.This stuff will just
all plug in from the orig harness, and the E tranny works super.
Not to put in an add here, but I can rebuild your tranny if you are in need.
The drive shaft will need shortened. Normally 2 1/2 inches but I always wait and measure
The throttle is a snap. Try to get the orig throttle cable, cut the end button off the
cable, so you can pull a foot to 18 inches of the cable up inside the outter housing, when
this is done cut the whole thing off just a little past the back of the engine. Now feed
the inner cable out, and you should have plenty of slack to reach the orig throttle arm.
Get a cable clamp like goes on a Briggs throttle cable. You may need to drill the hole out
just a little where the cable goes through. a 7/16 Snap-On socket will just fit in the
butter fly to hold it wide open, be careful not to let it fall in. Now put the Briggs end on
the cable, hold the acc pedal down, and line the hole in the back side of the clamp up to
the hole in the acc arm. Now get a short screw go through the hole in the arm into the
back side of the clamp, be sure there is enough room for it to pivot, if not get a longer
screw. If it can't pivot it will break the cable.Cut off excess cable.
These engines have no fan pulley, or fan, they must use electric fan/fans. The ECU will
control them, but you must use relays. These engines also have reverse circulation on
the cooling system, this means the thermostat side goes to the LOWER hose.
I use an after market inline fuel pump, as all ele fuel pumps it must go as close to the
tank as possible. The ECU also controlls the fuel pump relay. As many think the oil
pressure sender must be involved in this circit, that is not true, the only thing that is
done here is that this is a back up incase the FP relay goes bad it will limp in.
Some fear the OBDII system because of check engine lights. The things that cause the
check engine light to come on have NO affect on the run, and drive ability of the engine.
Example; There is an O2 sensor behind the rear cat, emissions only (for 2002 emission
check)this stuff will have to work in places like Calif, but who wants to run a cat on a
first gen LT1 in Texas, not me.
If you are thinking of using headers, be SURE they are for D port heads. I think a square,
or round port header is worse than the stock LT1 manifolds.
Well there is more but it's late, and I'm tired. Ok ok I'll post the part #'s tomorrow, I don,t
have them here at home.
Happy reading, Larry