It's Official: 2011 Ford Mustang GT has 5.0-liter V8
There were various incarnations of the 'LS1'. GM had made running changes to the LS1s, which were effectively LS6 parts being carried over to LS1 builds.
For instance, there was the LS6 inlet manifold which gave a big increase in torque. Then there were some LS1's which were effectively LS6 blocks which had less parasitic losses that developed some 20 hp more.
Then there was the different engine (PCM) mapping that distiguished the original LS1 from later versions.
There is no definitive LS1 except the original and the one fitted to the C5 Corvette was the ultimate sample. The LS6 came in two different specs... the ultimate developing some 405hp and 400lb-ft of torque.
For instance, there was the LS6 inlet manifold which gave a big increase in torque. Then there were some LS1's which were effectively LS6 blocks which had less parasitic losses that developed some 20 hp more.
Then there was the different engine (PCM) mapping that distiguished the original LS1 from later versions.
There is no definitive LS1 except the original and the one fitted to the C5 Corvette was the ultimate sample. The LS6 came in two different specs... the ultimate developing some 405hp and 400lb-ft of torque.

Now that you mention it, it would be good to know what MPH the Camaros were running. It doesn't matter about the time so much (or dyno number), but the MPH is a good indicator of potential track time. 
e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.

e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.
Last edited by SSbaby; Mar 26, 2010 at 12:25 AM.
Not all our dynos are the same anyway. 258 versus 266 could be due to the extra gear used in 3rd. And/or maybe a little run-to-run variation.
Now that you mention it, it would be good to know what MPH the Camaros were running. It doesn't matter about the time so much (or dyno number), but the MPH is a good indicator of potential track time. 
e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.

e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.
Anyway, I think it's fun speculating while we wait for the real test(s). Ford haven't had a decent V8 for decades. It looks like now they have. It's all good.
1fastdog...looking less and less likely, unfortunately. Only possible day is tomorrow.
I thought that it was pretty well known that the LS6 block had windows in the mains. The "350hp" LS1 also had the LS6 intake manifold that flowed more air, but a slightly shorter duration camshaft from the truck engines.
There were various incarnations of the 'LS1'. GM had made running changes to the LS1s, which were effectively LS6 parts being carried over to LS1 builds.
For instance, there was the LS6 inlet manifold which gave a big increase in torque. Then there were some LS1's which were effectively LS6 blocks which had less parasitic losses that developed some 20 hp more.
Then there was the different engine (PCM) mapping that distiguished the original LS1 from later versions.
There is no definitive LS1 except the original and the one fitted to the C5 Corvette was the ultimate sample. The LS6 came in two different specs... the ultimate developing some 405hp and 400lb-ft of torque.
For instance, there was the LS6 inlet manifold which gave a big increase in torque. Then there were some LS1's which were effectively LS6 blocks which had less parasitic losses that developed some 20 hp more.
Then there was the different engine (PCM) mapping that distiguished the original LS1 from later versions.
There is no definitive LS1 except the original and the one fitted to the C5 Corvette was the ultimate sample. The LS6 came in two different specs... the ultimate developing some 405hp and 400lb-ft of torque.

Now that you mention it, it would be good to know what MPH the Camaros were running. It doesn't matter about the time so much (or dyno number), but the MPH is a good indicator of potential track time. 
e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.

e.g.
104 mph is typical of what 300 hp cars were capable of.
109 mph is more indicative of the 350 hp cars.
I trapped 109 in my bone stock 01
Over the 98-02 years you had changes in intake, cam, exhaust manifolds and heads. My 99 Z28 auto ran 101.80 for its fastest trap stock. My 01 WS6 M6 ran 109.46mph trap stock (unusually high for a stock LS1). There were huge variences of the same type of car in the same year. But the later versions were stronger overall when compared to the 98-99.



) who did much better.