I'm sold on putting a LT1 intake on my 383 L98. I have herad the LT1 is very similar to the Miniram, is this true? I was looking through the dyno #'s in the TPIS catalog and they say that the Miniram made 487hp at 6500rpm and 437tq at 5250rpm on a 383 with Airflow heads, modded MAF, and 58mm TB; but the big thing was that the tourqe never dropped below 400 between 3000rpm and 6250 rpm. Would a stock unported LT1 intake perfrom just as well on my 383 stroker and give me about the same power curve? What heads would work best? How long does it take to take the TPI off and put an LT1 on?

Thanks

 

i was wondering the exact same thing.... i have been considering putting either a miniram or a modified LT1 on a ZZ4... i was wondering if the LT1 would perform similarly ... mostly because the LT1 setup is a lot cheaper!

 

ttt

 

I'm waiting to see some numbers from the new Stealth Ram from HOLLEY.It looks alot like the MiniRam but costs under $500.

 

No, the miniram looks like the LT1.

 

Chris89GTA, I'm in the middle of the swap onto my ZZ4 right now. I'm taking my time and trying to do everything right and make it look good also, but I'll be done in a week or so. I'm anxious to see how much torque I've lost on the bottom. Frankly, the car is holy hell to launch, so I don't think I'm going to miss it. I owned a '94 TA a couple of years ago and loved the power curve. I finished the painting and shining last night, so it's ready to bolt on if I get all my fasteners tomorrow. Check it out.

 

How did you get the ribs on top not to be painted?


Thanks

 

First, I spent 2 hours sanding and polishing them out to a mirror finish. Then put masking tape solid over them and cut the strips out in between with an exacto knife.

 

You can also paint it all and block sand the top paint off.

 

Hey, I was just wondering where beefy go that price for the holley stealth ram. Ive been waiting for info on that thing. I havnt seen any prices or anything for it yet.

 

I was just wondering, you guys that do the lt1 swap, what do you do about he distributer and coolant stuff? Just curious

 

I'm not sure, but I think I read a little ways back that the Mini-ram was designed to be similar to the LT1 intakes powerband...wouldn't suprise me, they're both short-runner intakes. I can't wait to get mine going! Shouldn't be any major differences in power output, I've seen the LT1 intakes make power on huge engines and run 10s so it must be possible...

I'm still awaiting my intake, I bought it last week...How'd you get that thing's paint to shine like that? I wanted to paint mine black, and put the Corvette fuelrail covers on it to cover the wiring/hoses......I'm trying to keep from shipping it to be powdercoated!

 

The shine is just the camera flash. Yeah, I debated between black or red. I think black with Corvette covers would look tough. I got all my allen head SS fasteners today and my 90 deg. coolant hoses. It's just a matter of finding the time to do the install now.

 

Scoggin-Dickey has LT4 intakes, brand new, for $190.95 on their site:

http://www.sdpc2000.com/cart.asp?act...d=738&pid=2589

 

Yeah, but didn't John say he doesn't like using them because the ports don't line up like they do on the standard LT1 intake? I'll probab just end up porting mine anyway...any mods possible to retrofit an LT4?

 

I did the LT4 intake retrofit on my car. I used the Fast Burn heads as they have the raised ports similar to the LT4. They don't match up perfect but they are a whole lot closer than LT1/standard intakes. I only had to do very minor gasket matching on the top of the LT4 intake ports to make them match the Fast Burns using a FelPro 1255 gasket. I didn't have to touch the port openings on the heads. The rest of the swap is exactly like the LT1 intake swap. Here are some final pics of the motor. I wish I had taken some pics while I did the swap but I guess that'll have to wait for if I ever tear it down again.

 

Sounds like a good deal but I offer LT1 intakes WITH fuel rails for $200 then another $200 for machine work is $400 plus shipping.
This is a hobby of mine, I do it on the side.

I don't sell them un-modified.

 

Not to mention the fact that you've posted directions on how to do the swap so if people have the ability they can do it themselves (Like I'm doin' on the new Iroc). Thanks John !
John

 

I know this is old, and from all I have read you have stopped providing this service, yet was hoping you would consider doing one for a 91 y body for me. Or at least provide all the info to do it myself?

 

His last activity was 2013. I suggest instead of bringing a thread like this back up, use a PM.

 

As far as I understand he stopped doing those a looooonnngggg time ago. Took down his website too. Going to have to DIY if you want one. Just search the forum.

 

Do yourself a favor and just buy a miniram.

 

The Holley Stealth Ram will probably get you similar performance... another short runner intake. The Miniram is pretty pricey (by the time you get the fuel rails and stuff) unless you find a decent used one.

In fact for just a litltle more than the price of the Miniram, you can probably get an Edelbrock Pro-Flo intake manifold, a set of Vortec iron heads and the peripherals to run it. If your current engine is stock, that combo would make far more power than just throwing a Miniram on a set of stock heads.

 

if you have a camaro, buy a stealth ram, the cost difference fer the small loss in performance is worth it, and you can MAKE it fit under the hood. if you have a firebird, u gotta buy a hood, or buy the miniram, it fits under the hood, and you get what you expect, low end torque, high end power. remember, though, all the other parts have to flow in order to get the biggest bang fer yer buck.

 

While I appreciate all the opinions, I have a miniram for the y body, and if I wanted a stealth ram I would buy one gents.

The lt1 intake is for a project I have planned, and the whole point is low buck, oem parts. I can probably do most of the work myself if I had the details.

 

https://www.eecis.udel.edu/~davis/z2...n/swapping.htm
https://www.thirdgen.org/forums/tpi/...utor-hole.html

the info is out there, I know I've seen it a ton. I formerly had a converted intake.
If you can't do it yourself then the classifieds may yield you one, though I haven't seen one in a while.

 

the question appeared to have been asked of a long gone participant on this forum, and it was not entirely clear that you had a miniram. factory parts may be less expensive at the onset, but they almost always have built in compromises that - in the end - cost money to deal with. i've never dealt with the LT1 intake for that purpose, but right off hand the lack of a distributor on the LT makes it a loser if you want to compare it to performance alternatives.

 

Plus TPIS actually makes a miniram to fit the LT1 engine now. I think factory they flow around 220 range cfm. The miniram is around 315cfm with a 1206 gasket. I guess there is a market for it. My opinion is the work involved to get it to fit a traditional sbc isnt worth it. Plus the dis hole has to be dead on so you have no issues with eating cam gears.

 

Well, when you want to send a LT1 to the moon, you either need to port it, or buy something bigger. I had mine ported. Its got big ports that match my AFR heads.

1-2500rpm is 'ugh'. 2500-4000 is 'meh'. 4000-7200 is Oh boy oh boy oh boy!

 

1206 ports? Does the lt1 intake take a port that big?

 

Didn't mean 1206 specifically. But that they were matched to my AFR195s

 

yeah, poor wording on my part. I have a 385 with afr heads and a spier ported miniram for the vette. I also have a long rod 355 am a maintenance tech, have access to a bridgeport mill, lathe, and would like to see what I can do porting the stock 113 heads and matching them to the lt1 intake. I have an old holley commander 950 and the tpi harness also. It would merely be a wintertime project. See how much power I can make out of old obsolete parts and how fast I can go with basically junk. So the goal isnt specifically to go fast as painless as possible, but to learn along the way and have some fun in the shop doing the project.

But, the more I have read it seems a single plane conversion to efi with an elbow would give better results, and be cheaper, simpler. Still fun.