I finally found a LT4 intake for my LT1 to LT4 upgrade, BUT, Year one says it is for 94-97 Camaro/Firebirds. My LT1 is a 92. What are the differences if any? Is it just the cross over fuel rail?

 

I think I've found a fuel rail system that will work with the LT4 intake. It's off a 96 Vette LT1. My next question is will this fuel rail connect to my fuel system? I'm hoping it will be a remove and replace situations. There must be others out there that have done this upgrade. I'm getting killed out at the auto-X as my class includes Vettes with the LT4 and I'm allowed to upgrade to an LT4.

 

LT4's were only made in 1996 & 1997????? YearOne's listing doesn't make any sense to me...

Intake manifold should be the same for all LT4's...

 

only in 96'. it makes sence, why would they give the Camaro the same power as a Vette?

 

Did GM even make an LT4 Camaro/Firebird?

 

On both counts. Year One is out to lunch on that one. But any of the later fuel rails from a Vette will work on it, either '94 and up LT1 rails or the '96 LT4 ones.

 

In 1997 SLP made 100 LT4 Camaro SS and 29 LT4 Firehawks...

In 1996 GM made 6359 LT4 Corvettes...

Or something like this......

I believe the intake manifold is the same on all LT4...

 

SLP...bah... there are too many non factory "special edition" fbodies out there to count.

 

Are you serious?

From 98-02 the Camaro and Firebird engines were identical to the Corvette engine. The HP ratings were different, but in the Helms manuals the only different part numbers are the throttle body and the exhaust manifolds. The TB measured the same diameter, but the vette was fly by wire as opposed to the F-bodies cable driven unit. The exhaust manifolds were different to accommodate the different inner fenders of the cars and had nothing to do with power output. On the dyno, both the F-body and the Y-body will make virtually identical numbers, with the F-body having a higher average due to the IRS of the vette sapping more power than the straight axle in the F-body.

The LT1 F-bodies were also virtually identical to the Y-body power plants. Again, dyno numbers will be within 10% of one another, with the edge probably going to the F-body.

There's no need to talk down about, or bash the F-body cars. The Camaro and Firebird are both awesome cars and deserve respect.

They made LT4 F-bodies in 96 and 97. The LT4's were NOT installed by SLP, they were installed by GM. SLP added things like graphics, hoods, suspension components, and few other odds and ends. Even that ended in 99 or so, with the special edition F-bodies (the WS6 and SS) being tricked out by GM and not SLP.

I love my Corvette, and in some ways it is superior to my 99 WS6, but my Trans-Am is awesome as well. There's nothing wrong with taking pride in your ride, but you shouldn't bash other cars to do it.

 

WTF are you talking about?

There's the SS and WS6 cars, which were tweaked a bit by SLP.

There's a handful of Mecham cars out there.

And that's about it. There's no other 'non-factory special edition' cars that I know of. I guess you could count the Beger SS, but it wasn't an option or anything, you had to get them from Berger Chevrolet, and Berger was the only dealership you could come to for warranty claims, so I don't think it qualifies.

What about the Callaway corvette's? Or any of the other handful of rare Corvettes? I suppose those non-factory, special edition cars are OK because they are Corvette's?

Why the hatred for the Corvette's little brother, the F-body?

 

Are those numbers for real? That might put them on a collector's list in the long term. I'm curious to see if any are available out there and their price.

 

im sorry if i offended you. i was not trying to put down any car. i love the F-bodies.

 

I think you will run into a problem with a tab that is cast on the LT4 intake that will not let the intake match up to LT1 heads. Saw this happen an another member on a different forum when he tried to install a LT4 intake (Red 96) and a 93 LT1 head. Also the LT4 intake has larger ports than the LT1 heads. It's been a while but I think I am correct.

 

I think they are real....seen them in several references..


http://www.lt1.net/Firehawk.htm

 

The '97 F-bodies with the LT4 in them were built by SLP with the help of GM using excess production engines that otherwise would have been sold as crate engines.

 

I'm using a LT4 intake with 93 fuel rails. I didnt see the point of spending alot for the LT4 vette rails.

 

One of the very few lt4 f-bodies will usually go for more money than an lt4 corvette. Not counting a GS in low mileage condition.

 

Did you also upgrade to the LT4 heads? That's my plan, LT4 intake, Heads, Hot cam, 1.6 roller rocks, 95 opti.

 

Did you use LT1 heads? I had read that you had to grind a tab off the LT4 intake to make it work on LT1 heads.

 

That's too bad--I know what you mean though--I just think the LT4 cars should be in another class or handicapped in some way. Not fair to say an LT1 car should be just as fast, other things being equal.