Lingenfelter's port & polished modified LT1 intake manifolds Vs. Edelbrock's

Lingenfelter: http://www.lingenfelter.com/mm5/merc...Category_Code=

Edelbrock: http://www.summitracing.com/parts/EDL-7107/

 

Stock or ported stock will be more than enough for your setup.

Edelbrock is a huuuuge waste of money.

 

LE can do that for $100 less

 

Ditto.

 

the stock intake design can't really be much improved upon. Port and polish would be the same bang for less buck. Of course, that red powdercoat on the edelbrock probably adds another 5hp...lol jk

TPIS out of minneasotta also offers an LT1 aftermarket intake, which is supposed to be an improvement over stock, however, I don't know much about it except for it's hilaciously expensive.

 

interesting....

http://www.tpis.com/index.php?module...ake+Components

 

They have a pic of it on a lt1 but dont say much about it. I wonder if its any better than stock

 

Categories pull down menu, MiniRam manifold:

 

yeah i just didnt see where they said it would work for the lt1 or how much they want for it

 

Stock LT1 Intake is pretty damn good as is.

 

this is it's write up:

This fabulous one-piece casting is ideal for the serious car nut. If used as a replacement over a stock Tuned Port intake, on a mild 350ci motor, you will see a 75-95+ HP gain. If you build the motor on the mild side, i.e. small cam and some porting, stroker motor, 100-125+ HP,over the stock or modified TPI intake is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy.

Installs on existing TPI vehicles with just our Fuel Rail Kit. Use the Mini-Ram to replace and out-perform any carbureted system.

We have been driving this manifold for over 20 years. It has wonderful throttle response, delivers more torque from 2000 to 2700 RPM than a stock or modified TPI, and gives a great rush of power from 3500 RPM to 6500 RPM.

The reason the TPI intake is so restrictive is due to its intake runner length, which is 17 inches long! Your typical carburator intake is about 5-6 inches long, and our Mini-Ram intake is 3 inches long. The shorter the runner the higher the peak RPM, the higher the peak RPM, the higher the HP number. This is why it makes so much more power.

On a built 350 with a bigger: base manifold, runners, ported plenum, 52mm T/B, and a ZZ-9 cam, peak HP is 380 at 4750 RPM,and peak torque will be 460lbs/ft, Put a Mini-Ram on the same motor, and peak HP will be 450 at 6000 RPM, with 430lbs/ft of torque. Sure you lose some torque, but you will still have a hard time hooking up, so the torque loss is not an issue. Over a stock TPI you would see easily over 100 more HP. If we do the same combo with a 383 the modified TPI would only be at 400HP at 4500 RPM, and 515lbs/ft of torque, basically a tow truck motor, all torque, and no RPM or top end. Put a Mini-Ram on and you will see 480HP at 5800 RPM, with 490 lbs/ft of toque, and a lot flatter toque curve, over a TPI long runner intake. And once again you will still have trouble hooking up.

This same runner concept is why the LT1 motors made 60 more HP over the TPI motors out of the box. If you look at stock TPI aluminum head flow numbers, and compare them to stock LT1 aluminum head flow numbers, you will see little difference, also the cam specs are very similar, and the throttle bodies, and cubic inches are the same. So why does the LT1 make more power? Simple, intake runner length, is the main difference, shorter runner more RPM, and RPM is HP. If GM put a 17 inch long intake runner on the LT1 motor, the numbers would be the same as the TPI motors.

If you are running the Vortec iron heads, you will need to have them drilled and tapped for the standard SBC bolt pattern,we offer this service for $75/pair, though shipping them may not be worth it, so check some local machine shops for this service. If you have this done then you can order p/n 500-518, but you must specify you are running Vortec iron heads, and we will match the ports accordingly.