shaggy56

I was so close to doing this but the only thing holding me back was the remote thermostat. I just cant get past that so looks like I will be saving up for the Stealth Ram. Maybe if someone has an ingenious method to mount the remote thermostat I would change my mind but I havent seen anything I liked.

branz28

I just wanted to chime in. I read somewhere at the top of the thread about cam wear, etc due to the LT1 intake. I have swapped cams from LT4 Hotcam to a comp cams grind. I did not notice anything abnormal. I would say (this is not an exact figure) i have around 75,000 miles on my LT1 intake. Thanks to vacation trips, work, daily running around. However i won't say that i didn't have problems. But most of them were things i could have avoided if i would have paid more attention when doing the intake. Just my .02 cents.

Z69

The only way gear wear could reasonably happen is if the height of the dist is set wrong.
The LT1intake.com intakes are set to stock height.
The alignment simply can't be off enough to cause a problem.

DuronClocker

iTrader: (1)

The GM part number for the TV cable off a '93 Z28 is 10241763 and GMPD has it for $34 shipped.

Demon355

iTrader: (1)

My buddy has a '93 LT1 Formula and hes switching to carb and selling me his entire LT1 intake setup, BBK 52mm TB and all the necessary pieces to do the swap. This would work right? I read somewhere they have to be '94 and up or something,

Also, I seen a pic of coolant lines going straight into the heads. I'm going to be getting some TFS heads and I don't think these have that, what do I do?

86IROCTHD

no you need the later intake..... and the coolant lined going into the front of the heads are for the lt1 head conversion..... have the intake sent to lt1intake.com and have him convert it... best bang for the buck and you know it will be right

Demon355

iTrader: (1)

How much would that cost tho? I see he lives in Georgia, lol! I'm all the way up in Canada!

86IROCTHD

i sent him my intake and he sent me my intake modded and everything i neede but hoses for like 400ish bucks... but took a bit.... he was backed up

Demon355

iTrader: (1)

You're also in Texas, which is a hop, skid and a jump away from him. What is needed to make this intake work?

86IROCTHD

like 3 hoses, and a throttle bracket and time

Demon355

iTrader: (1)

I knew about the Throttle bracket, what hoses? Nothing has to be done to the intake itself, machine work?

86IROCTHD

2 coolant ports in the back of the intake (machined in) you need 2 5/8's heater hoses with a 3 inch 90 degree bend on the end... the dizzy hole is done and depending on the year of your heads he redrills the holes for the intake bolts... if you have the 89 i belive it is and later steel heads it should be really easy but mine i had the the older style so he had to fill the existing holes and drill new ones which i had to redrill when i got the intake case only 2 of them lined up

Demon355

iTrader: (1)

well I'll be buying brand new TFS 23* heads...and have the choice of pre-87 or newer...

86IROCTHD

thats what it was 87 was the year i couldnt remember it for the life of me.....yea get the later and it will be easyier for him i think

Vette L98

Hey guys I have a new question, if I do a whole LT1 top end... Heads, intake, and a smaller dizzy. What is all that I need to do? Because I have a 1987 Corvette and want to switch to a LT1 top end and change the cam and get more top. Torque was fun, as much as I like burning up tires I like top speed And the link LT1intake.com doesn't work anymore so I need some help. I am in Denver and if anyone would like to help me do this when I get the parts that would be great!

Iroc n roll

Talk about bringing a post back from the dead and me along with it. There is a bit of modification that will need to be done, and honestly, unless you have a killer block you might as well just do an engine swap. You will gain an improved computer in the process.

However if frankenstein is your game... this guy did what you are proposing:

https://www.thirdgen.org/forums/tpi/...eads-gen1.html

Welcome to thirdgen.org

Vette L98

I apologize for bothering you, but I can't find help no where else. I didn't think the block would need a ton of work. Would it just be better to get a mini ram and a new camshaft? If so do you recommend a certain camshaft? I need to pass emissions so I don't need one with a lot of overlap, and have read anything with -6* or less is good for emissions. Because I would rather not retune it everytime. Thank you very much for replying.

Iroc n roll

You misunderstood my block comment. You do not have to modify the block to get it to work. It just seems like more work to fit all the LT1 components on an L98 block than just to use the whoie LT1, unless of course you already have a built block.

As far as your quest for power, I assure you the are many answers here for you. I would also recommend a corvette forum since that is the platform you're working with and it does have a few differences. Go by the TPI board on this site and do some reading. You will find a wealth of information.

vetteoz

iTrader: (13)

Exactly
if you want LT1 performance in a C4 , fit a LT1 engine complete ( or buy a '92+ LT1 car )

vetteoz

iTrader: (13)

So you need to do a lot of research, many HP mods are not emissions friendly
https://www.thirdgen.org/forums/tpi/...owing-tpi.html
http://temp.corvetteforum.net/c4/vad...dstrategy.html

anesthes

iTrader: (12)

If he goes to an LT1 PCM some of his dash functions will stop working.

I'd just get a miniram and cam.

-- Joe

Ryan3834me

I am seriously looking at doing a LT1 aluminum head and intake conversion in my 1987 383 block. Other than recent valvetrain issues, it's fresh (so I hope).

However, I would like to also convert to OBDII. This aluminum LT1 intake and Lt1 heads onto a 1987 383 block. How's why's and reasons aren't open to debate (please!). Merely what is needed would be of benefit.

Will the modded LT1 intake (apparently only mod I need is distributor and coolant holes) fit a Vortec dizzy?

BTW, what 'dash functions' would stop? I know some vettes had information centers.. but '87? Almost all early sensors work on a resistance scale. (obviously a topic for another thread).

anesthes

iTrader: (12)

A vortec dizzy might work, if the signal is the same. I recall someone at one point using one out of like a '98 L31.

On an '87 vette (I had one), the ECM controls the fuel economy, range, and some other functions on the dash. When I converted mine to a '730 ECM, I lost those functions.

-- Joe

Ryan3834me

I think the vette follow wanted to use the intake, and or heads, as I do. In which case he'd keep his ECM.

I have read reams of info on the OBD II swap, but didn't catch anyone in that thread using an LT1 intake and Vortec distributor. 'Scuzz' used the HSR and it was tight with fuel rails.

I know it 'might' work, That's why I posed the question, lol

Perhaps I shall just buy the parts and find out.

anesthes

iTrader: (12)

Right but then it was suggested he do a complete LT1 swap which means either drill for a dizzy or use an LT1 PCM.

-- Joe

Ryan3834me

I've read that. Thx.

So, back on topic... LT1 intake swappers. I'm assuming this would imply a good chance of dizzy modified units. And looking ahead, I'd like to use a Vortec dizzy, if it fits. Anyone know?

[EDIT] I know a small cap dizzy can work, but does vortec dizzy it fit LT1?

Sorry if this is redundant, or already answered elsewhere. The OBD II thread blew up very large . I saw Scuzz had an aftermarket intake with Vortec dizzy and it was tight.

Does the vortec dizzy fit a modified LT1 intake? I'm looking to swap both, corvette aluminum LT1 heads (10207643) and LT1 intake (modified for dizzy). It's a clearance question basically. (Specific to modified LT1 intake).

Thanks! you guys rock.

anesthes

iTrader: (12)

https://www.thirdgen.org/forums/dfi-...tec-truck.html

-- Joe

Ryan3834me

Thanks Joe, but no mention of LT1 intake in that link.

anesthes

iTrader: (12)

Was your question about using a vortec style dizzy ?

Or using an LT1 intake? We've covered LT1 intake end to end over the past 10 years. I thought it was the use of the vortec dizzy that you were asking about?

In regards to "fitting" the LT1 intake, it will fit just as much as a small cap HEI does. The question is can you get it to work with your ECM. I think the pickup is a different signal, but otherwise, you seem to need an external ignition module.

-- Joe

Ryan3834me

Joe,

Since this was a thread calling in Lt1 swappers, I felt perhaps one of them may have also used the vortec dizzy. There is a potential space limitation. Having to do with where they put the fuel regulator on the LT1. I haven't found anyone who has done both together, yet. Trust me, I'm searching. Althgough I wasn't considering LT1 until last week, I might have missed it reading 15 pages of the OBD II thread, lol.

I've done my homework on the OBD II end of things. Just a clearance question.

I realize full well what is entailed requiring many new parts. This isn't the tread for that.

I'm not asking if it works in theory. I'm asking if the vortec CAP fit with LT1 fuel intake and fuel rail lines.

I checked the classifieds.. Anyone selling a modded LT1 (with dizzy hole, for LT1 heads?) I can do the mod myself. From what I can tell I can make an oversize hole, drop in a distrubutor, position a ring and a chuck for hold bolt. jig it with some quicksteel and then disassemble and TIG weld. Block will keep dizzy located. If the vortec dizzy clears, I'm one happy camper!

anesthes

iTrader: (12)

I might know a kid that has one for sale. I'll find out tonight.

I don't hear much about the LT1 manifold swaps these days. A number of them failed early on (leaked), and the price for aftermarket intakes is so cheap now it's not worth it.

The vortec dizzy is much lower than the HEI, I'd think it would chear the FP regulator without issue. If I get a chance I'll stick one on an LT1 intake and see what it looks like. Might not be this week however.

-- Joe

Ryan3834me

Well, my plan for today is just get my car together, and running.. hate wasting TPI gaskets, but... Cold weather is coming quick and have to tuck her away for the season. I found a 96 Vette motor locally cheap. I want the heads! might keep the block for future use or sell it. But I'll get all the darn bolds, and fuel rails, etc, with it. I'd be interested in buying one (LT1 intake) already modded tho still. KIM, I am bolting it to LT1 aluminum heads. I love my TPI, but why limit the motor. My 383 is already built. I have some valvetrain goodies gifted to me, but machining L98 heads for guides isnt worth it. For now SA rockers, and LS6 springs.

david frederick

iTrader: (2)

lt1/l98 converted manifold

Ryan3834me

Perfect! Lol. I'm hoping for using a Vortec distributor with the LT1. I want to go obd2.

Beautiful pics!!

Did you just bolt up the aluminum Lt1 vette heads to the lt1 intake and use all Lt1 gaskets?

david frederick

iTrader: (2)

bump

Formula383

iTrader: (3)

I did the LT1 manifold conversion came out good. My only problem that I have is the TV Cable. Could never get it setup really the correct position. Now I am looking to go with the Lokar cable's. Did anyone use them if so can you post a picture of it and to anyone else can you post a picture of what you have. Thanks