LT1 Intake Manifold

[WhiteTransAm]

do they make anftermarket intake manifolds for the LT1???

no matter where i look Summit Racing, Thunder Racing, LM Performance, Year One noone had intake manifolds for an LT1s i can only find LS1/LS6 and Gen I small blocks

i eventually wanna do a heads/cam/manifold job, i plan to buy em one part at a time as i can afford it then do them all at once but i cant find a manifold, can anyone help me out here?


EDIT: BTW these are the Heads and Cam im considering but havnt made any decisions yet

http://thunderracing.com/catalog/?ac...vid=4&pcid=114
Thunder Racing Stage 3 Ported Cylinder Heads

http://thunderracing.com/catalog/?ac...vid=4&pcid=122
Comp Cams Camshaft havnt decided on lift

also been browsing Summit Racing but so far those seem like the best heads ive been able to find

[WildBillyT]

Edelbrock has been kicking one around for years, I'm not sure if it has hit the market.

Edit-

If Summit has them they would be

EDL-7107 LT1
EDL-7109 LT4

You may not be able to find them when searching but if they are in the database they will come up with those part numbers. Summit has a 3 character manufacturer field followed by a dash and then the mfr's part number.

[ar0ck]

There is absolutely nothing wrong with a stock ported Intake. Edelbrock makes a new LT1 manifold but I haven't heard much feed back on them. I think BlackBirdWS6 has one on his car if memory serves me correct.

The only differences are a larger intake port for 58mm throttle bodies and larger ports.

[WhiteTransAm]

Originally Posted by WildBillyT

Edelbrock has been kicking one around for years, I'm not sure if it has hit the market.

Edit-

If Summit has them they would be

EDL-7107 LT1
EDL-7109 LT4

You may not be able to find them when searching but if they are in the database they will come up with those part numbers. Summit has a 3 character manufacturer field followed by a dash and then the mfr's part number.

tx alot i was able to find it with this

[Mike]

a stage 3 head package may be a little much for stock cube motor

[WhiteTransAm]

Originally Posted by cbrrmike

a stage 3 head package may be a little much for stock cube motor

i know, but i figure since im gonna be buying one part at a time i may as well get the best ones and then when im ready to put them in i could wait a little longer and get it stroked

its probly gonna take a long time but when all is said and done i want this car to be running a 383 supercharged setup

[j0n]

Originally Posted by ar0ck

There is absolutely nothing wrong with a stock ported Intake. Edelbrock makes a new LT1 manifold but I haven't heard much feed back on them. I think BlackBirdWS6 has one on his car if memory serves me correct.

The only differences are a larger intake port for 58mm throttle bodies and larger ports.

blackbird made ~3hp more with the addition of the edelbrock intake manifold

[WhiteTransAm]

Originally Posted by j0n

blackbird made ~3hp more with the addition of the edelbrock intake manifold

wow that is pretty low, how much would it cost to get the stock one ported?

[NightRydaSS]

why not do an LT4 upgrade for about $2.5K? It is rated at 425HP. Then do an ignition upgrade, headers, and a nice set of gears. U'll haul ass.

[Mike]

i think the cocensus amung lt1 guys is that the lt4 kit is a waste of money, there is better aftermarket stuff for less money (regarding the heads and cam)

[WildBillyT]

Originally Posted by cbrrmike

i think the cocensus amung lt1 guys is that the lt4 kit is a waste of money, there is better aftermarket stuff for less money (regarding the heads and cam)

I concur. You can put together a better setup for less money.

[j0n]

Originally Posted by WildBillyT

I concur. You can put together a better setup for less money.

x3

start reading: http://www.eportworks.com/lt1.html

edit: btw the 425hp mentioned by nightryda is at the flywheel. the numbers listed on the website i posted are at the rear wheels

edit#2: read more: http://advancedinduction.com/AiProductsLT1.html

[WhiteTransAm]

Originally Posted by j0n

x3

start reading: http://www.eportworks.com/lt1.html

edit: btw the 425hp mentioned by nightryda is at the flywheel. the numbers listed on the website i posted are at the rear wheels

edit#2: read more: http://advancedinduction.com/AiProductsLT1.html

nice links

[WhiteTransAm]

Originally Posted by NightRydaSS

why not do an LT4 upgrade for about $2.5K? It is rated at 425HP. Then do an ignition upgrade, headers, and a nice set of gears. U'll haul ass.

ive only heard bad things about the LT4 conversion especially considering the 425 is Flywheel hp what your really getting from isnt much at all for 2.5k u could get ALOT more

[Pampered-Z]

The LT4 conversion itself is not all that good, but the raised runners offer more potential then the LT1 once fully ported and a larger cam added. But for that price, aftermarket heads would probably be cheaper and would certainly flow better.

You can have your stock intake port matched which will hekp some.

As far as aftermarket intakes, there are a few out there, but I've never heard of anyone actually seeing and big gains on 'street engines" Few 396 CI LT1 with big cams and rave heads are using sheetmetal intakes, but you're looking at a $2500 price tag just for the intake. For the street this none might work.

http://home.wideopenwest.com/~squinn0039/ltx.html

Again, unless you're going all out racing that's money that could be spent elsewhere.

[Blackbirdws6]

Originally Posted by j0n

blackbird made ~3hp more with the addition of the edelbrock intake manifold

Actually made a whopping 5rwhp and 12rwtq increase lol. I had the infamous intake leak in the back. Stock intake has been off the car 3 times for the same fix. Once by the dealer with only 5k miles, once by my dad and last by my dad and myself (with the edelbrock installed). Leak has finally stopped. We followed all the tricks before and it still leaked. I swear the casting of the stock manifold was off.

Pricey for the performance gain but I just wanted a new piece since I was tired of the damn leaks. A regular new LT1 intake would prob have done fine but at how much? Plus I wanted to test it out because everyone was curious about it.

-Brian