Z06guy46

Well to be honest I never thought of the Kinsler as a realistic cost effective option for me. I tryed to justify it but I don't think it's worth the hastle or the money. If the head work only cost $1520, then where is the cost difference between the 616 and 630 package? is this all installation and Warranty cost? The 616 comes with the Ferrea option already. Seeing as the heads are most likely comming off anyway, why is the price so different. Shouldn't the price be more like $8500 or is there more work done to get the higher compression ratio. Does anybody have the FAST LSX on the 616 package? I am at a loss as far as what other parts I should buy. I want a splitter and diffuser for track use but my car is a daily driver. I don't mind ground clearance issues but staying at factor compression may help me maintain reliability for long term use. Im thinking 616 + FAST and use the rest of the money for tires and maybe suspension. Any thoughts? I feel like the heads and FAST combo will get me closer to 660. I'm not expecting 600rwhp but I hope to get 550rwhp. don't know if I got one of those stock motors makin close to 450rwhp. based on cost alone. I don't know if I can swing both the FAST and the heads so I can put money into other areas. If you had to choose between the manifold or the heads, which is the better option?

bowtiguy

If you are doing the work yourself or buying the parts outright for a local installer, a full blown 630 package with CAI, 100mm MAF, shroud, fully loaded heads, and a GT-19 cam runs $3670 and change.( no price difference for the GT-21)

you are paying for the labor and tuning. It took me about 12 hrs total to do my head swap, but I did not do a cam at that time, and I clean EVERYTHING before it goes back in.


You can always add a Fast 102 intake later down the line. much easier swap than heads for sure!

As far as your aero ?'s, I can't comment as I've only run stock body config. but I have run it up to 170+ at Road America and it regularly reaches 150mph here on my local road course. I have a steep ingress driveway so a splitter is NOT in my future.

hope that helps.

Stingray23

$3670? I would think that the heads and intake alone would cost that much. I would guess more like $5000.

bowtiguy

go to LPE's website and add all the items to the cart, you will come up with the same $$$ amount. Of course, the heads are NOT outright, so you will have to supply your own cores, most guys who already have a C6Z have these....

--OR--

you can have them do it at what ever GM's "new" complete LS7 head price is...

NITROUS JUNKIE

GT21 flat lays the smack down.

I'm waiting for the new GT31 LS7 cam to come out.

Z06 owner wanting to go bigger than the 21. :o

WeaponsGradeTorque

PureSwank

Yeah you know that is certainly is not going to be daily drivable lol

kumar75150

Here you go: http://forums.corvetteforum.com/c6-z...and-tuned.html

Captain Z

Well, I'm not WGT and I'm certainly no expert, but for what it's worth I have 4.10s on my car and I see no downside.

I think most high hp cars (i.e. 550rwhp and up) are going to be shifting into 4th gear before the end of the 1/4, so that may be a moot point.

As far as highway driving, before this mod I never drove the car in 6th gear because it was such a dog. Now with the new gears it is actually a useable gear when before it wasn't. I can drive 85mph at 2300 rpms which I think is about right. Expect roughly 300 rpm increase from stock gears to 4.10s.

I think more people are slowly warming to the idea of new gears for the z--it's actually one of the most cos-effective mods out there.

MTIRC6Z

First of all if you've got a Z06 diff isn't putting 4.10 gears in it making it weaker given you have to use the smaller C6 ring and pinion?

Secondly, if at 550rwhp it's a dog in 6th a better tune is required. I've got a H/C set-up with 592rwhp, freakin thing has to idle at 1025rpm, and yet I can put it in 6th gear, take my foot off the gas and have it idle along at 45 mph on a flat road with no load and there was no surging or bucking. Heck I've actually idled up a hill where the rpm got dragged down to 850 rpm and the thing still pulled along at about 37 mph. When I push the gas pedal at idle in 6th gear it pulls away just fine, if I want to accelerate faster I just grab a lower gear.

Cheers, Paul.

Corvette6.0

It made 588RWHP with just the 660hp package with the gt21 cam ?
My z06 is being picked up this week for the same package and I was asking one of the sales guys about putting the fast intake on. He did not recommend it because of the drivability issues it caused.

Wulverine

What drive ability issues?

Corvette6.0

I do not know. I was hoping you guys knew

briancb1

A 700 crank HP MAST built 427 crate motor (305cc heads, FAST intake, etc) put down 601rwhp at my local dynojet. That's the only motor I've seen dyno sheets in and out of a car for a c6z. If you go to the mast website you can see the specs. Curious how LPE only lost 60hp and the MAST one lost 100.

Automon

My 2009 Z06 ships to Lingenfelter end of the week for the 660hp package and the MSD Atomic intake manifold. I am being told 3-4 weeks for build plus 3-4 days to ship back to Colorado. That are telling me about 700hp at the crank the whole reason I added the Atomic intake to the package is because I can only buy 91 octane in Colorado they were a little concerned. I am also curious how it will perform 6000 feet above sea level. I can't wait for it to get back here and it has not even left yet going to be a long 4-5 weeks

furiousox

subscribed for updates

Automon

My Z is at Lingenfelter now getting the 660 package along with a couple of other goodies. The car is schduled to be completed 8/1/18 I will let you know what I think once it ships home/

Automon

Lingenfelter has had my Z since 6/26/18 and it has been one delay after another. I sent the money two weeks before they received my car ( so they could order the parts and be ready when the car arrived) a bunch of crap. I Just received another email from them apologizing but it was going to be two more weeks because the forgot to order my headers. I know there customer service sucks but this is just stupid.... I hope the car runs well when it comes home.

Automon

My car is there now! They have had my car for 6 weeks and the engine is still not in the car. There customer service SUCKS!! if you don't call them they won't call you at this point they are telling me two more weeks because they forgot to order my headers. I sent Lingenfelter $7,000 3 weeks before shipping my car to them so they could have all parts on hand for the build. They also are missing the valve spring retainers which caused another delay I warned them that my car better run when its returned to me.