Looks good 
It's alive!
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
It's alive!
Yesterday I completed phase 3 of my C4 mods.
AI 190CC full CNC ported heads, a cam in the 23X 0.57x neighborhood and all of the supporting OH BUY the ways!
It started right up. It idled like crap at the beginning but now it will sit in gear with the AC on w/no problems.
The CC Promags are noisier than I expected, I redid the lash a couple of times and did not shut it up. Today I went to a local shop and the tuner said, "You have the lash right, thats how CC promags sound!"
Once I get this puppy dialed in I'll take it to the dyno and see if it ends up being my daughter's drive to school car.
It sounds pretty good! My neighbor came by and commented that he could not hear his Harley over my idling car.
Mike
AI 190CC full CNC ported heads, a cam in the 23X 0.57x neighborhood and all of the supporting OH BUY the ways!
It started right up. It idled like crap at the beginning but now it will sit in gear with the AC on w/no problems.
The CC Promags are noisier than I expected, I redid the lash a couple of times and did not shut it up. Today I went to a local shop and the tuner said, "You have the lash right, thats how CC promags sound!"
Once I get this puppy dialed in I'll take it to the dyno and see if it ends up being my daughter's drive to school car.
It sounds pretty good! My neighbor came by and commented that he could not hear his Harley over my idling car.
Mike
Last edited by aboatguy; Apr 14, 2006 at 08:23 PM.
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
I hate to be the voice of doom, but I saw something unusual. It appears that the springs are sitting directly on the valve shims. If that is the case, the gold shims are not hardened and will shed alot of metal in your oil. Just thought I would mention it. If the springs are on seats and I just did not see them, disregard my post.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Looks good. I thought I was the only one **** enough to line up the paint marks on the valve springs! 
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by Corvette Kid NC
Looks good. I thought I was the only one **** enough to line up the paint marks on the valve springs!
Nope they are lined up like that on every AI head that I've seen.
Best thing is that the intake goes on with out slotting and finagling the bolts like guys have to do with another respected porting company.
Mike
Last edited by aboatguy; Apr 15, 2006 at 12:18 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Instructor
Joined: Apr 2004
Posts: 161
Likes: 0
From: fl
Reguardless of whether the porter surfaces the intake port side of the head Like AI does....Most LT1 heads even after a 30thou cut, and on top of it, going to 26thou thickness head gaskets(instead of the stock 49 to 50thou ones).....still don't have to have the intake bolt holes elongated at all.......I just did Lloyd Elliots heads and cam with the above(aprox 55thou) thickness changes, and the intake went on perfect with no slotting or anything...matter a fact the intake port to head port alignment was even spot on.....another friends was the same way.......It all depends on the motor from the factory
by the way your heads look awesome.I hope it runs well for you.....Joe
by the way your heads look awesome.I hope it runs well for you.....Joe
Last edited by 95NOSvette; Apr 15, 2006 at 06:52 AM.
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by 95NOSvette
Reguardless of whether the porter surfaces the intake port side of the head Like AI does....Most LT1 heads even after a 30thou cut, and on top of it, going to 26thou thickness head gaskets(instead of the stock 49 to 50thou ones).....still don't have to have the intake bolt holes elongated at all.......I just did Lloyd Elliots heads and cam with the above(aprox 55thou) thickness changes, and the intake went on perfect with no slotting or anything...matter a fact the intake port to head port alignment was even spot on.....another friends was the same way.......It all depends on the motor from the factory by the way your heads look awesome.I hope it runs well for you.....Joe
by the way your heads look awesome.I hope it runs well for you.....JoeI was not disparaging Lloyd's work; in fact I was within hours of ordering a LE package. However, if you read some of the more performance oriented websites there are plenty of threads with intakes that will no longer fit, even with slotted holes after head porting/decking .
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by Pete K
I hate to be the voice of doom, but I saw something unusual. It appears that the springs are sitting directly on the valve shims. If that is the case, the gold shims are not hardened and will shed alot of metal in your oil. Just thought I would mention it. If the springs are on seats and I just did not see them, disregard my post.
Mike
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Originally Posted by aboatguy
I contacted Phil and to paraphrase his response the springs are on machined & hardened locators and those gold "shims" are hardened.
Mike
Mike
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by aboatguy
I was not disparaging Lloyd's work; in fact I was within hours of ordering a LE package. However, if you read some of the more performance oriented websites there are plenty of threads with intakes that will no longer fit, even with slotted holes after head porting/decking .
Thanks to CFI-EFI for that great idea. 
Originally Posted by Pete K
Just trying to help. Last motor I saw that had the springs directly on the gold shims, with no spring locators, put enough metal in my oil that it looked like I was panning for gold when the oil was drained. sami85l98 had the same gold shims directly under his springs(with no locators) and it wore almost completely through a few of them in only a few thousand miles. Locators (seats) are always hardened. Yours are black, and I didn't see them because of the color.
Panning for gold, I like that! 
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Originally Posted by Corvette Kid NC
I'm so glad that I've obtained zero decking on my new block with no cutting of the block. Thanks to CFI-EFI for that great idea.
Good catch, it did appear as though it could have been that way. That's what we're here for is to help each other and hopefully prevent unnecessary grief. Panning for gold, I like that!
Thanks to CFI-EFI for that great idea. Good catch, it did appear as though it could have been that way. That's what we're here for is to help each other and hopefully prevent unnecessary grief.
Panning for gold, I like that!
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by ScaryFast
I hate you.
Mine still doesn't run...
In all seriousness, though, congrats! Can't wait to see the dyno numbers.
Mine still doesn't run...
In all seriousness, though, congrats! Can't wait to see the dyno numbers.
Don't be hatin'
My install had a couple of hiccups and took longer than planned and I am not 100% yet.
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by Pete K
Just trying to help. Last motor I saw that had the springs directly on the gold shims, with no spring locators, put enough metal in my oil that it looked like I was panning for gold when the oil was drained. sami85l98 had the same gold shims directly under his springs(with no locators) and it wore almost completely through a few of them in only a few thousand miles. Locators (seats) are always hardened. Yours are black, and I didn't see them because of the color.
Pete I was glad that you were looking out for me. I shot an email to AI IOT get the skinny.
Mike
Thread Starter
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Originally Posted by Corvette Kid NC
I'm so glad that I've obtained zero decking on my new block with no cutting of the block. Thanks to CFI-EFI for that great idea.
Thanks to CFI-EFI for that great idea. When's that puppy due to hit the streets of NC?