Boy guys..........Good Stuff.

Kinda of sorry I got into this a little late, but never less very informative. Thanks for the enlightenment.

 

Sportsman class if I remember correctly. I haven't seen him race in a while. He usually runs in Gainesville and at races around the south east.

 

Jose,

You're right... in factory configuration, the LT1 intake is no bueno. BUT, it can be made to work with a little [i]work[/b]. There are a few shops coverting heads and modifying the intakes to work with them. It is a little spendy but not anywhere near the costs of buying a Hogans. You'll also get out less than buying a cast intake, an elbow, converting the intake to FI and all the other little stuff that goes with that.

So... modifying the stocker is not really that bad an idea. You will leave a little hp on the table but that's the price.

-Mindgame

 

Here is one of KTs old intakes. My efforts were stopped in the same way his were. Now I am just rebuilding what I have and waiting for a better day

New 18° intake side

New 18° Intake port

KTs old Intake front

KTs old intake side view

Look through intake INTO cylinders

Now to the more pressing questions. Will it fit?

Across fenders

Head on

UN-cut Cowl

Looking more like they will be going on an LT1 before they go on the 427 SBC I really want to build ...

 

Hey Ellis,

What's with all those "tubes" running everywhere?

You need to tidy that up a bit. Just cutting the tubes off would make for a much more aesthetically pleasing engine compartment.

-Mindgame

 

those are his "intake supercoolant lines"...

 

Colder charge = more O2 = more HP..... at least it's something along those lines.

Bret

 

yeah it is the super cooler system Yeah that's it!

 

So...the question that begs to be asked is...
What HR Cam minimum you have to run with these Brodix 18x heads?
I'm assumming some decent lift. About LSA and duration?
Thanks.

 

All depends on what you want to do with it and the rest of the combo... you can run anything.

Bret

 

Like stated earlier in this thread the 18x head isn't worth going with while using the LT1 block!!! If your going to use this head save yourself the headache and get an aftermarket block.

 

There is some legitimate and honest disagreement about that.
The LTx block, with appropriate strengthening mods has been proven to support, what...? As far as I know it's over 1,000hp with some of the turbo guys, but I don't recall how far over.

Plus, some folks just want to use the LTx block.

 

I agree, the current record is 1250rwhp through a really loose converter, so maybe 1400 at the crank. There's a few others that have surpassed 1000rwhp and still living with many more breaking 800 and 900rwhp. That's enough to get you 8s, and soon i'm confident it's going to go 7s when Rick gets the 'bird back to the track on high boost... in a pretty heavy 3400lb+ car too. 95% of people out there don't have the money or the ***** to press the LT block to it's limits, so an aftermarket block won't be necessary (which is the beauty of staying with an LT1 ). But heads like the 18Xs can make it far easier to make that power in any form, which IMO makes this swap very reasonable in some instances.

 

Yes, rick's car made 1238rwhp (396 LT1/ T91 turbo) with auto unlocked. A customer of mine made 1012rwhp (355 LT1 / T88 turbo). Another fellow on this board (james) made 1002 rwhp (383 LT1/ Twin GT40 turbos), and Jim has made 900rwhp+ with his (357 LT1/ Twin PT61's). None of these engines have been pushed to the limits yet. I believe 1400rwhp is possible with the right combo and a big turbo with an LT1 block. And yes, the heads will make a huge difference. Also I'm curious as to why people keep giving the LT1 block a 1000hp limit. No one has broken one that I know of out of shear power. I know some have made holes in the block with rods that failed and crappy tuning, but I have yet to see that magical limit like the 5.0 blocks have.

Jose

 

Jose,

You are seeing turbo numbers on these blocks.... Most guys who break them do so with a big hit of N2O... I've seen them come apart at 1100 HP with N2O.

A turbo doesn't shock the motor like a big hit of N2O does. Actually I think turbo lag helps these things live.

Bret