shaun

well i guess i have a ls1 intake lol.well i have the original egr system on my car but i have a 02 ws6 engine so i guess all that stuff swaped over.i was reading the note on mode at the top of this page and it sayed all 01-02s have the ls6 intake then i was looking at a few photos and the 01-02s dont have that egr stuff in the passeger side by the head.so if the 02 engine i have came with the ls6 intake does that mean that they swaped the crapyer ls1 intake? so what are the differances?

thanks for the help guys

shawn's SS

iTrader: (5)

Maybe (most likely) they lied and it's not an 02 engine?

transAm-98

iTrader: (1)

all LS1 's have EGR. he could have swapped to and LS6 though. check the head castings. 98 and 99's have casting number 853. 00'+ have #241

RPM WS6

iTrader: (3)

Are you sure it's even an '02 motor? If so then it sounds like they put an LS1 intake on it (in place of the LS6).

shaun

yes im shure its a 02 engine i have all the paper work the vin number it came out of i even have a paper from the factory build sheet and a carfax on the car it came from also. it came from a place i think its called lqs? or some thing like that. it onky has like 30k on it. so if the egr's are different does that mean that the exaust manifolds are off the old motor? is it a straight swap? i have the egr on the passenger side if the head.
also wheres the best place to look for the casting number?

thanks for the help guys

bshell

iTrader: (24)

01s and 02s did not have egr and came factory equipped with an ls6 intake. I'm pretty sure whoever did the work would just replace the longblock. The accessories and intake were probably just swapped over. I don't think it is legal for them to remove any emissions equipment that your 98 came with.
Pre 01 Corvettes also came with the ls1 intake, but not the egr equipment. You can tell the difference between the ls1 and ls6 intakes by looking at the bottom of the intake. LS6 intakes have a flat bottom and no egr. LS1 intakes may or may not have egr and have a hump on the bottom.

Redneck Z

iTrader: (3)

Only the 98-00's came with EGR from the factory....If you have EGR hooked up, then you might have the weaker 98-99 exhaust manifolds also. That sucks to buy an 01-02 motor with earlier, cheaper parts slapped on. At least you can now legally delete your egr and put an LS6 manifold on.

bshell

iTrader: (24)

Here are pics of an ls1 intake egr setup and an ls6 modified to use egr. If you have the modified ls6 intake, you have your old exhaust manifolds.

shaun

well i got the car from a guy i know and he said it had a ls6 inake on it.when he had the new engine put in he said that he put the so called ls6 intake back on the new motor witch was a ls1 instead buy what you guys said.
i dont think he new the differance. so i have the 98 manifolds and intake?
the car is really strong and it made like 336 at the wheels.
the engine was a hole crate motor out of a wrecked ws6 [guy i got it from hit a big puddle in a thunder storm and hydrolocked the engine and the insurance replaced the engine]

Redneck Z

iTrader: (3)

See if your manifolds are stainless. If they are, they're the 98-99 style.

2001NBMZ28

Easiest place to see the casting number for the head is on the passenger side head, lower right, just below the oil fill and valve cover. If you want to check the casting number of the block it's on the driver's side, back of the left hand deck, above the transmission flange - you'll need a flashlight and inspection mirror.

Redneck Z

iTrader: (3)

Just thought of that. Check the passenger side head and see if the casting # is 241. If not, then you got ripped.

shaun

well the casting # on the head is 241 so it is a o2 motor.i cant tell if the manifolds are stainless or not a magnet sticks to them. the they look a little shiny by the flange but i has the normal rusty .
also doesent some f bodys come with the ls6 block
how do i tell?

thanks again guys for helping me figure this crap out lol

2001NBMZ28

Some 01/02's may have come with the LS6 block - check the casting number on the block like I posted earlier - 12561168 denotes the LS6.

RPM WS6

iTrader: (3)

No, not legally. If the car itself is a '98, it has to have the emissions equpitment that came on that make/model for the 1998 model year to be 100% legal. Of course, this would only be a concern if you have a strict visual test to pass.

Redneck Z

iTrader: (3)

Yes legally. Take for instance when you swap an LS1 into an rx7 and take it to the ref, you have to comply with the emission standards for the car the motor came out of, not the car it's going into. Would it make since to put an LS1 into an f-body, and then try and hook the rx7's emission equipment up to the LS1 motor? The 02' was setup as to not require an egr, and therefore is not required in his car. Sometimes when you swap a newer/different motor into an older car, the older emission hookups won't fit the newer motor. It would be stupid to require a newer motor to try to mate with older, outdated and less efficient emission equipment.

RPM WS6

iTrader: (3)

I guess that could work if you could prove what the motor came out of exactly (original poster did say he had paperwork). Problem is, if you don't have solid proof that the motor is from an '02, and you still have a 1998 VIN with a 1998 emissions sticker on the drivers side strut tower showing an EGR valve as part of the emissions system, which is now missing (due to the '02 setup), then won't they question why it's missing?

Many states don't even do a visual, but I was under the impression (from other's I've spoken with from CA) that they look to that emissions sticker to check for necessary equpitment. Perhaps they were mistaken?

Redneck Z

iTrader: (3)

Yeah, they do look for the emission sticker under the hood and check for the appropriate pieces. If they assumed it was a 98 and he didn't have proof, I'm sure they'd probably require egr. If he showed a smog ref his paperwork, then they'd hold him to the standards of an 02.