A 7.5 liter GTO??

[TODD 2000 V6 CAMARO]

As I was leaving work today, I come around the corner if the building, into the parking lot and hear a cammed engine. I snapped my head to the left and sitting in one of the parking spots was a 2005-6 Silver GTO rumbling with a definite cammed idle. In place of the usual 6.0 badge on the trunk lid, he had a nice stock looking 7.5. Can the LS6 be bored out that much??? My technical knowledge peters out right after general maintenaince, so I thought I would ask you guys. All I know is the thing sounded amazing and looked pretty bada$$ to boot. Anyone know if the 7.5 could be for real?

[Steel2686]

Maybe it wasn't really a cam, but just a rough idle because of a slight miss. The 7.5 could stand for 7 1/2 working cylinders.

[fastTa]

The '05-'06 GTO's come with LS2's not LS6's. World Products makes a Warhawk block in a 9.800" deck version that is listed as being able to accomodate a maximum stroke of 4.125". Combine that with a stroke of 4.25" and you have 454 inches. That is right at 7.45 Liters. Lot's of guys are going with a finished bore slightly larger than 4.125" giving them 455 inches and 7.5 Liters. It's a tribute to the old school Pontiac 455" motor.

MTI is also making a 455 out a Dart MID block. They also include the 7.5l badge in the package. It makes right around 520 RWHP.

[darkz711]

The '05-'06 GTO's come with LS2's not LS6's. World Products makes a Warhawk block in a 9.800" deck version that is listed as being able to accomodate a maximum stroke of 4.125". Combine that with a stroke of 4.25" and you have 454 inches. That is right at 7.45 Liters. Lot's of guys are going with a finished bore slightly larger than 4.125" giving them 455 inches and 7.5 Liters. It's a tribute to the old school Pontiac 455" motor.

MTI is also making a 455 out a Dart MID block. They also include the 7.5l badge in the package. It makes right around 520 RWHP.

I was just reading an article on the MTI gto with a single turbo. Pumps out like 900 hp and rolls in with a price tag of $75000. Thats probably the best bang for your buck for a fast aftermarket dragster. Although in the same article, it claimed that the lingenfelter twin turbo corvette ran only a tenth of a second faster than the stock corvette and was out run by the z06 which doesn't make sense to me... traction i guess

[TODD 2000 V6 CAMARO]

I was just reading an article on the MTI gto with a single turbo. Pumps out like 900 hp and rolls in with a price tag of $75000. Thats probably the best bang for your buck for a fast aftermarket dragster. Although in the same article, it claimed that the lingenfelter twin turbo corvette ran only a tenth of a second faster than the stock corvette and was out run by the z06 which doesn't make sense to me... traction i guess

I was skimming that article the other day at the news stand, wasn't the Lingenfelter making like 1100HP? I bet that thing would be severely traction limited. I need to buy that magazine because that looked like a sick bunch of cars.

[darkz711]

I was skimming that article the other day at the news stand, wasn't the Lingenfelter making like 1100HP? I bet that thing would be severely traction limited. I need to buy that magazine because that looked like a sick bunch of cars.

they claimed 1000hp but i guess when they dyno'd it, it was only making about 750-800 rwhp and the henney was making 935

[ryan34]

They were using street tires in that article. So i'm pretty sure they were just blowing smoke instead of going down the track. LOL. At the very end the Hennesey and Turbo vette ran on slicks. The viper ran 10's or 9's(it said it ran 1.5 sec. quicker and now i forget what it ran). The corvette blew its rear Damn GM rears It doesn't use the same rear as the F-body does it?