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I'm looking at an '02 Z06 that has a Procharger psc1 already on it. At some point in it's previous life (40,000 miles) the engine was replaced. Dropped valve? Who knows.
It appears that the car has an LS1 in it now (advertised as brand new crate engine). Why you would use an LS1 if you're putting a brand new crate engine, again, who knows. Lower compression?
I'm assuming LS1 because 241 heads and 78mm Fast intake with BBK 80mm LS1 T.B. Seems like a pretty old school setup.
Short story long, I can pick up a set of stock LS2 (799) locally for $400.00 Canadian pesos (around $300.00 U.S. today).
Does any of this make sense? Is it worth it? Thanks for your input.
Whether its worth all depends who you ask. Stock for stock the 799 heads will flow a little better but to make it worth it, IMO, get them ported or even get your 241 heads ported. Either 799 or 243 heads will work great and flow really well with a good port job. Look into upgrading to a LS6 intake while youre at it.
Or can get a smaller pulley and make a few more ponies as well.
I think you would make way more power per $ by just going with smaller pulley or upgrading to D1SC. The heads and intake don't have a big impact on FI cars.
Given a slightly dubious and unsure history...the car would need to be very cheap ?
I don't really know about the short block, I'm guessing LS1 as it was suppose to be a "brand new crate engine" and I can't imagine why anyone would put LS1 heads and intake on a LS6 bottom. Do you have any pointers on how to easily identify the LS6. I have heard maybe a marking on the front of the block?
I'm pretty sure that I can get it for 16,500, does that sound cheap enough for a 40,000 mile Z06?
I think you would make way more power per $ by just going with smaller pulley or upgrading to D1SC. The heads and intake don't have a big impact on FI cars.
That's pretty much what I was wondering. I'm kind of a bang for buck kind of guy, aka cheap.
Thank you all for the input so far. I guess basically I was curious if the better flow of the stock LS2 heads would warrant the dollars spent on a f.i. application.
LS6 intake came on SS Camaro's once it was introduced in 2001. I'm sure it was on the vettes too. I did an intake swap on my buddies when we could buy ons and I ran 11's with bolt one in his car in high school.
I'd take a good look at the car. Sounds fishy if the owner isn't disclosing full details of motor failure. 241 heads are fine imo for a P1 car. Save the money for when the "unknown" engine craps out.
Last edited by winters97gt; 06-12-2017 at 11:18 PM.
I'd take a good look at the car. Sounds fishy if the owner isn't disclosing full details of motor failure. 241 heads are fine imo for a P1 car. Save the money for when the "unknown" engine craps out.
I know, right? The thing is the guy that has the car for sale didn't do any of the work on the car, it was all the previous owner. He did have the phone # of the shop that supposedly did the installs etc. and I tried calling him but only got a message stating he is booked up solid for the next year and not accepting any more clients.
I'd take a good look at the car. Sounds fishy if the owner isn't disclosing full details of motor failure. 241 heads are fine imo for a P1 car. Save the money for when the "unknown" engine craps out.
I know, right? The thing is the guy that has the car for sale didn't do any of the work on the car, it was all the previous owner. He did have the phone # of the shop that supposedly did the installs etc. and I tried calling him but only got a message stating he is booked up solid for the next year and not accepting any more clients.
I think you would make way more power per $ by just going with smaller pulley or upgrading to D1SC. The heads and intake don't have a big impact on FI cars.
I agree with your first sentence but, depending on the combo and setup, heads and intake can have a huge impact on a FI car. Cam and heads will usually dictate how efficient a setup will be. Less resistance (efficiency) from better flowing heads and intake will always net more power.
I agree with your first sentence but, depending on the combo and setup, heads and intake can have a huge impact on a FI car. Cam and heads will usually dictate how efficient a setup will be. Less resistance (efficiency) from better flowing heads and intake will always net more power.
True, but he's dealing with an "unknown" 6.0 motor. Those stock 241's are 66cc-69cc depending on the year they were made. 799 heads are 62cc. With that unknown motor, it seems as the car was slapped together. I personally wouldn't touch it, and not slap on heads without knowing what has been done to them.
Op, 799 heads will raise your compression. I'd do more research on the car.
The LS1 and LS6 blocks are different too, different part numbers if you can access this to view it.
Allegedly the LS6 block is better...but in real world probably no odds here. And from around 2001 or so most LS1 complete engines would have used the LS6 block anyway.
So the head info above is perhaps a better identifier here.
Of course camshaft could also be different...proper LS6 cam was always considered an upgrade over any other stock LS1 type.
As for pricing, no idea as I'm several thousand miles away and have no idea what the market is like.
But a car with an obviously incorrect engine has to carry a lower value than with a correct engine. Up to you what seems reasonable or not and as to why it has the wrong engine.
Last edited by stevieturbo; 06-13-2017 at 06:15 AM.
True, but he's dealing with an "unknown" 6.0 motor. Those stock 241's are 66cc-69cc depending on the year they were made. 799 heads are 62cc. With that unknown motor, it seems as the car was slapped together. I personally wouldn't touch it, and not slap on heads without knowing what has been done to them.
Op, 799 heads will raise your compression. I'd do more research on the car.
799 heads are 64cc and basically the same as 243 (LS6) heads minus the hollow stem intake valves.
If I was the OP I would just port them and while theyre off check the block bottom end to see what else he has. Easy enough to do.
The LS1 and LS6 blocks are different too, different part numbers if you can access this to view it.
Allegedly the LS6 block is better...but in real world probably no odds here. And from around 2001 or so most LS1 complete engines would have used the LS6 block anyway.
So the head info above is perhaps a better identifier here.
Of course camshaft could also be different...proper LS6 cam was always considered an upgrade over any other stock LS1 type.
As for pricing, no idea as I'm several thousand miles away and have no idea what the market is like.
But a car with an obviously incorrect engine has to carry a lower value than with a correct engine. Up to you what seems reasonable or not and as to why it has the wrong engine.
I think the fbodys had a 25% chance of having a ls6 block in 01-02. Don't remember what it was with the vettes it was 15 years ago lol.
I think the fbodys had a 25% chance of having a ls6 block in 01-02. Don't remember what it was with the vettes it was 15 years ago lol.
I know, I'm the same way. That was such a long time ago that I've forgot most those things. Every once in a while I'll stumble on a post I made from my mustang days since I still read those forums from like 1998, and I'll be "no kidding, I forgot about that".
06-12-2017, 03:23 AM
Which heads on F.I. 346?
