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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
I thought factory intake was like 270 cc to begin with I guess it is a little smaller then. Exhaust is like 90 cc so I can see the extra 9 cc increase there.
I thought factory intake was like 270 cc to begin with I guess it is a little smaller then. Exhaust is like 90 cc so I can see the extra 9 cc increase there.
there is definitely confusion about intake volume. Here is a thread where I was asking the same question.
Do the guides have to come out prior to machining the ports? I ask a seemingly silly question because I've got a set of your (AHP) freshly rebuilt heads with MS90 guides and perfectly cut seats that I've been sitting on. This set has the mild street port done to them. I don't mind spending money, but I hate spending it on something twice......
Hello Michael Hope you have been well!
Sent you a PM sir.
Am I correct in assuming an otherwise bone stock LS7 would have to be retuned to take any advantage of these?
Nope no returning needed for our CNC ported heads unless you want to maximize your combo!!!
You can have run a 100% stock setup (cam, etc..) with our CNC ported heads and still pickup very good power gains without any loss of driveablity or down side at all.
In short our new CNC ported LS7 heads are a perfect "drop in/bolt on" cylinder head!!!!
Do the guides have to come out prior to machining the ports? I ask a seemingly silly question because I've got a set of your (AHP) freshly rebuilt heads with MS90 guides and perfectly cut seats that I've been sitting on. This set has the mild street port done to them. I don't mind spending money, but I hate spending it on something twice......
Originally Posted by American Heritage
Hello Michael Hope you have been well!
Sent you a PM sir.
Guess I had a similar question. I have a set of AHP heads w/ the old street port still in the box. We are finishing up the bottom end rebuild and close to slapping the heads back on -- I wonder how much I am leaving on the table with the old street port compared to the new CNC porting. (BTR3, Mamo Fast, 102NW, 1-7/8 LG w/ forged bottom end build)
Two questions. 1) If heads are ordered without porting, do you still get the "performance valve job". .0005 is pretty impressive.
2) Can you explain exactly what is involved in the treating of the Ti valves?
Yes sir if you order our Basic Package 4 Heads you still get our Performance Valve job which is perfectly concentric and also picks up a few additional HP over the stock Valve Job due to our improved seat angles.
All our Intake valves are Treated and Polished. The Treating process hardens the valve while the polishing smooths out the stems to ensure not only the proper RA finish but also microscopically Plateaus the high spots creating a nice smooth surface for electrons to build up on.
I have the package 4 heads from mid 2014, interested in how these CNC units compare as well.
We almost have our brand new Superflow SF902s Engine Dyno up and running. Once we do we will be posting up lots of combos, im sure we have a set of our older program heads laying around the shop we can put on the dyno mule for a side by side comparison.
On the Chassis Dyno we are seeing some very good HP & TQ gains with our New AHP CNC Program over any previous porting program. You get better and better as time goes on so to speak.
Just saw the AHP valve covers on IG!! They look sick! What’s up with an update on here man? When will they be available? Price? Style? F/I or N/A option? The boys need answers lol
Just saw the AHP valve covers on IG!! They look sick! What’s up with an update on here man? When will they be available? Price? Style? F/I or N/A option? The boys need answers lol
They're Proform Valve Covers, been out for years
Last edited by johnodrake; 03-28-2019 at 11:49 PM.
Reason: NSV :ink
Just saw the AHP valve covers on IG!! They look sick! What’s up with an update on here man? When will they be available? Price? Style? F/I or N/A option? The boys need answers lol
Thanks 73BDG!!!
The covers are coming along nicely, thanks for the inspiration!
Have not finished with them yet but getting closer.
We plan on some ceramic paint in the engraved areas to make it stand out. Possibly offering the colors of the cars so owners could match their AHP covers to their car paint color.
We will plan to sell them as a full kit (wires, gaskets, coil pack brackets) to make it easier as possible.
Some pics of where we are currently at with our new covers:
The covers are cool but I want to know about this...
if you follow AHP on IG you’ll know a little more(for anyone who isn’t following them), they have a little more about them on there. I know a few more details about it but I’m not sure what Khole wants to put out yet so I’m gonna let him drop that intel when he’s ready. I’ll say this....**** looks 🔥 and should be making some serious bald eagles!
If I did I would !
AHP will be sending me pictures as the build progresses and I believe the engine is scheduled to be assembled this week so I will post up anything they are Ok with.
Should be a monster N/A build and the plan called for it to be completely streetable (well balanced).......we will see how the concept matches the execution !
I will say is that AHP has been great to work with as they have rebuilt the entire car at this point and addressed every concern and question I have had.
If I did I would !
AHP will be sending me pictures as the build progresses and I believe the engine is scheduled to be assembled this week so I will post up anything they are Ok with.
Should be a monster N/A build and the plan called for it to be completely streetable (well balanced).......we will see how the concept matches the execution !
I will say is that AHP has been great to work with as they have rebuilt the entire car at this point and addressed every concern and question I have had.
BTW, the lift on the cam is .720 (!)
so I email with Khole a decent amount and he gave me a few details on this build, not much but he did the cam lift was going be .700+ on an arch angel build. Now I know who’s getting this monster! **** is gonna be serious man! I’m sub’d obviously 🇺🇸
What’s up with the color match engraved etching on the valve covers? Got any new pictures? Is a 🇺🇸 Scheme going to offered? Maybe even a hard release date when they go on sale?
Oh oh and I got this pretty cool license plate frame!! Very pleased with it came out
What’s up with the color match engraved etching on the valve covers? Got any new pictures? Is a ���� Scheme going to offered? Maybe even a hard release date when they go on sale?
Oh oh and I got this pretty cool license plate frame!! Very pleased with it came out
Yes Sir!!!
We should have pricing shortly.
Very cool license plate frame! Now you see me, now you dont...
01-22-2019, 07:46 AM
