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Posted: Sun Jun 24, 2007 5:11 am Post subject: Pulled the trigger, '96 LT1
Just picked up an LT1 from a 96 Impala SS. Complete with serpentine bracket & accessories, radiator & fans, harness & computer and 4L60E trans. Package has 60k, and I stole it for $1000!
I have a vent line on the side filler on the 65 gas tank. I plan to T the return into it.
I plan to use an external electric pump, what capacity do I need?
I have a set of Hooker headers (2451) Will they fit the heads? I know I will need to weld in O2 sensor bungs.
It looks like the headers made for the Impala are designed to tie into the stock cats. I have both cats, I can cut the converter off and use the inlet pipe with the O2 sensor. Jim's performance said he can reprogram the computer for 2 sensor operation, along with set up for my gear ratio and eliminating the immobilizer & other not needed alarms.
Comments? _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Posted: Sun Jun 24, 2007 10:39 am Post subject: Re: Pulled the trigger, '96 LT1
Jive 65 wrote:
Just picked up an LT1 from a 96 Impala SS. Complete with serpentine bracket & accessories, radiator & fans, harness & computer and 4L60E trans. . . .Comments?
Yes - you don't need this, and I'll give you $1,001.00 - - that's a profit! When can I pick it up?
Posted: Sun Jun 24, 2007 2:05 pm Post subject: Re: Pulled the trigger, '96 LT1
dcar wrote:
Jive 65 wrote:
Just picked up an LT1 from a 96 Impala SS. Complete with serpentine bracket & accessories, radiator & fans, harness & computer and 4L60E trans. . . .Comments?
Yes - you don't need this, and I'll give you $1,001.00 - - that's a profit! When can I pick it up?
LOL, that wouldn't even cover the gas money it took to pick it up! _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Necoa #: 4669
Location: 4(MD,VA)
Joined: Jan 17, 2005
Posts: 1446
Year: 1984
Model: El Camino
Posted: Sun Jun 24, 2007 7:56 pm Post subject:
You're absolutely right! Dcar is a cheapskate! I'll pay for your gas.
FYI, there is a significant difference between a vent line and a return line. A return line operates under pressure and a vent is not intended to be. Depending on your vent configuration, you could create a dangerous condition. Be vewy, vewy sure of your plan.
Take care. _________________ 84 Elky GTA
Most of the important things a human ought to know cannot be comprehended in youth.
You're absolutely right! Dcar is a cheapskate! I'll pay for your gas.
FYI, there is a significant difference between a vent line and a return line. A return line operates under pressure and a vent is not intended to be. Depending on your vent configuration, you could create a dangerous condition. Be vewy, vewy sure of your plan.
Take care.
Thanks Bowtie. My 65 has a side fill tank that has a 1/2 inch vent next to the filler tube. the hose goes up to the top of the filler neck, about 12" above the tank. Do you think that could be a problem? I can install a bulkhead fitting in the tank if that would be better/safer. _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Necoa #: 4669
Location: 4(MD,VA)
Joined: Jan 17, 2005
Posts: 1446
Year: 1984
Model: El Camino
Posted: Mon Jun 25, 2007 9:55 am Post subject:
I have an 84 5th Gen with a TPI so I am not familiar with the actual parts of your 65 as many of our members are. No doubt there are many threads herein on the exact conversion you are making.
That said, I am not aware of any professional and safe design that has a return that must constantly drain down the filler tube. Don't think I'd be comfortable with it.
Two considerations:
1. Research the conversion in the Forum. I'll bet there may be an EFI sender unit w/ return and vent that someone has found works fine in your tank.
2. The bulkhead fitting in your tank may be a fine option. Sure you remember that a spark from a drill plus an old tank with fumes equals BOOM.
Hope this helps a little. Keep us posted.
Take care. _________________ 84 Elky GTA
Most of the important things a human ought to know cannot be comprehended in youth.
Thanks, Bowtie. The vent actually runs along side the filler tube, only ties in near the top. As for sparks, I'll wash the tank out if I go with the fitting, then run a hose from the exhaust of another vehicle while I drill. Back when I lived in the rust belt, I brazed leaky tanks shut using that method, The CO purges the O2 from the tank, no boom! _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Necoa #: 478
Location: 17(S.CA,S.NV)
Joined: Oct 10, 2002
Posts: 1637
Year: 1982
Model: El Camino
Posted: Mon Jun 25, 2007 9:03 pm Post subject:
I used a Walboro 255 pump if I remember right. You need about 40~45psi fuel pressure. The 255 is an internal pump I don't know if you plan on that or an external.
I'm not familiar with the headers you're using but if they will work with a SBC and your engine bay then they will work with your LT1. The exhaust ports are the same. _________________ '82 El Camino with an LT1 from a 95 Impala SS
I used a Walboro 255 pump if I remember right. You need about 40~45psi fuel pressure. The 255 is an internal pump I don't know if you plan on that or an external.
I'm not familiar with the headers you're using but if they will work with a SBC and your engine bay then they will work with your LT1. The exhaust ports are the same.
I picked up this link from one of the threads here: http://www.jimsperformance.com/
I've been in contact with Jim and he has been very helpful, and reasonable on building a harness and reprogramming the computer. He has a Delco external pump available that will work. The 65 tank has the sending unit mounted on the front side, I don't think I can find a unit to interchange that will fit an internal pump.
I spoke with the local guru at the race car fabricating shop, he confirmed the headers will work, as you said the exhaust ports are the same, and he will weld in the O2 sensor bungs. _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Necoa #: 4669
Location: 4(MD,VA)
Joined: Jan 17, 2005
Posts: 1446
Year: 1984
Model: El Camino
Posted: Tue Jun 26, 2007 6:31 pm Post subject: Good timing
It seems your timing is fortuitous (whatever that means). You'll want to go to your local mag rack and buy the August edition of Super Chevy. There is an article specifically about putting LS engines in hotrods.
It's a short worthwhile article and I won't regurgitate it here, except to say the pro's doing these installs all cite the same biggest problem - fuel systems.
I also picked up some interesting trivia, such as 90 degree bends in LS fuel lines are a no-no. They're always frowned upon, but especially on LS's.
Take care. _________________ 84 Elky GTA
Most of the important things a human ought to know cannot be comprehended in youth.
August Super Chevy, I'll get a copy, thanks for the tip.
I saw on the Summit site they have AN6 to compression fittings that will compress on the tubes on the fuel rail, and I assume the tank pickup after I cut the 'bulb' off the end. I'll have to look closer, but there may be room to put a bulkhead fitting in the sender plate for the return line. A nice high pressure hose should be easy to run and make the fuel pump connections without severe bends. I used a similar system when I added a fuel cell on one of my bikes for extra capacity. _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
Go down to part # 5800 this is what I used on my fuel rail. You can pull them off with 'relatively' little trouble. I've been running them since getting my LT1 running with no problems. _________________ '82 El Camino with an LT1 from a 95 Impala SS
Posted: Thu Jun 28, 2007 12:48 pm Post subject: Next Question...
Which motor mounts do I need to drop the LT1 block into my '65? I want to replace them when I do the swap, and I see different listings when I look up the '64 Elky, and the 96 Impala. I only have the metal bracket bolted to the block from the Impala, do I need to use the bracket from the 305? _________________ Bob Weis
Astatula, FL
'65 Chopped & Dropped
Some Motorcycles
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When can I pick it up? 
Besides, I was thinking "negotiations. . ." on the gas. . . 
