ZL1 makes the 9s mark in 2 weeks

[dblack1]

looking at the price tag for both.. i decided it's better to stick with my Cheapy used vette than either a ZL1 or GT500

I was debating on getting another 03-4 cobra and after shopping prices I reckon I'll be a vette owner instead. Automatic, newer car, and removable top ftw.

[SS Junk]

Yes. I've been on the R&D side of cylinder heads that were mapped, ported and then CNC milled beyond what was considered the end-all-be-all for that head in the 2.3T world, as an example.

Fantastic, but you didn't answer my question. I didn't ask what you've been involved with. What I ask is, are there shops that have been able to improve the flow of the cylinder heads off a Coyote engine?

[Cmarsh]

Fantastic, but you didn't answer my question. I didn't ask what you've been involved with. What I ask is, are there shops that have been able to improve the flow of the cylinder heads off a Coyote engine?

We are offering ported 5.0 heads. Stock, the intake side is good...but the exhaust leaves a lot to be desired in a forced induction app. I don't have the flow numbers in front of me, but ill post them up when I get to the shop.

[mustang_revival]

Fantastic, but you didn't answer my question. I didn't ask what you've been involved with. What I ask is, are there shops that have been able to improve the flow of the cylinder heads off a Coyote engine?

Several according to the last couple of issues of MM&FF's

[STROKD]

pretty damn impressive to run 142 mph (at only 700 rw) with a 4295 lb lowered trailblazer imo.

[DON SVO]

Fantastic, but you didn't answer my question. I didn't ask what you've been involved with. What I ask is, are there shops that have been able to improve the flow of the cylinder heads off a Coyote engine?

Considering that the 2013 GT500 will have the 5.4 Cobra R/GT500 supercar heads on it, and they have been ported to hell and back for several years, yes.

[Steve]

I wish they would finally release the GT500's to the owners so that we can finally see some real world comparisons versus the ZL1. Several people on SVTP who ordered cars have recieved notice that their cars have been built but have no dates for delivery. All orders are stating "to be determined".

[BlackGT]

Considering that the 2013 GT500 will have the 5.4 Cobra R/GT500 supercar heads on it, and they have been ported to hell and back for several years, yes.

They are still using the same heads from the 5.4 on the new 5.8?

[DON SVO]

They are still using the same heads from the 5.4 on the new 5.8?

Correct. It is a bored-out 5.4L.

[CJ]

Good god it's so heavy the car is practically irrelevant.

[Super Coupe]

Would be a good race for Manny's gt.

[Badass2000GT]

Would be a good race for Manny's gt.

His GT is running low 9's and with the new 4.2 KB he is est. high 8's.

[Super Coupe]

His GT is running low 9's and with the new 4.2 KB he is est. high 8's.

Oh snaps. I had not heard any new track times. Guess I need to get on here more.

[Badass2000GT]

Oh snaps. I had not heard any new track times. Guess I need to get on here more.

I don't think it's been posted on here for a while. I just find this info out from going to their shop and Bsing.

[Steve]

That 4.2KB is insane looking! It's freaking huge.