TEA Stage 2 706 5.3 Heads Comp 921
10-03-2012, 10:09 PM
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TEA Stage 2 706 5.3 Heads Comp 921 Category: Accessories
Price: $1200
Part Fits: 93-02 Chevrolet Camaro, 93-02 Pontiac Firebird, Corvette, 04-06 Pontiac GTO
Location (State): AL
Item Condition: Used
Shipping Information: Item Can be Shipped
Engine: LS1/LS6
LS Engine?: Fits LS Engine
I'm moving for work and taking this weekend to sort through my building. I shelved these heads along with other parts and took a breather from hotrodding after my hugger car sold. All the information below is still completely accurate. The only thing different will be the price, as I have no desire to lug around a bunch of parts that won't bolt to anything I own at the moment.
Entertaining $800 for these premium heads/hardware. If someone steps up to the plate shortly I'll also ship them for free.
For what its worth, these were the heads on the car when it made the magazine. Link in my signature.
**END EDIT 3/15/14**
Selling a set of TEA Stage 2 CNC ported 5.3 706 cast heads.
3.900" CNC Combustion Chambers
Ferrea 2.02/1.55 Valves
Competition Multi-Angle Valve Job
Blend Valve Job
Set Spring Heights, Assemble, Seat Pressure, Installed Height, and Coil Bind
Comp 921 Springs .650" Lift, Titanium Retainers, TEA Locators
GM Locks
GM Intake and Exhaust Valve Seals
55.5cc chambers 'Approx'
These heads flowed over a thousand crank horsepower on a stock displacement single turbo build. I built an iron 408 and went with a bigger chamber setup. The previous owner of my car originally purchased these heads so I don't have the original flow numbers but similar heads of this cast by TEA flow at or above 300@.600.
As I mentioned before these heads were ringed and that ring has since been decked out. They're cut .045" and currently sitting at 4.705" of the original 4.750 deck height measured from the valve cover surface to the deck at opposite points. The 55.5cc chamber I listed is an approximate figure derived from the .006 = 1cc milling rule of thumb and the 63cc uncut 7.450 height. **EDIT** I used 7.4 pushrods when I measured. 7.35 pushrods would be ideal. **EDIT** I mocked these heads up on a stock block and believe you'd need to flycut .070" for PTV to be within tolerance. It's been a while since I did this so I can't say for sure. If you've got pistons with reliefs you might not need to change anything. This mockup was done with a pre-crushed .052" GM MLS gasket. Cometic makes a thicker gasket which can also be used to offset the deck thickness. I researched what these heads have been milled to on this board and it's sister boards and found that .045" is not unheard of or even uncommon.
I'm including the Comp 921 spring kit with the appropriate retainers, seats, etc. This spring kit alone is $600. These heads are ready to bolt on, never run after machining/refreshing, only used to check PTV at half torque values.
Edit* If you're curious the 2 smaller springs you can see in the above picture are PTV test springs.
They're dusty in the last picture and the white you see in the right head accessory bolt hole is a spider web... lol. I'll shine them up like new before I ship them.
Thanks for looking
Last edited by Armageddon; 03-15-2014 at 12:11 PM.
10-04-2012, 06:37 AM
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These are extra heads I wasn't using. I'm also open to trades, swap me something you're not using. Doesn't hurt to ask. There's some wiggle room on the cash price too.
10-10-2012, 10:23 PM
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Run these heads with 7.35 pushrods and you'll be at the correct valvetrain geometry. PTV almost certainly would be within tolerance.
Edited out previous price to avoid confusion.
Edited out previous price to avoid confusion.
Last edited by Armageddon; 03-15-2014 at 12:13 PM.
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10-22-2012, 09:32 PM
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I'd like to build a new desktop. PM me cash offers and we'll talk. Partial trades still considered. These are great heads and if you're comfortable flycutting or have aftermarket pistons with reliefs already you're not going to beat this deal.
As I've told other interested parties I'll stand behind these heads until you're happy. Even talk you through installing them over the phone and give you every cent of your money back if they won't work.
As I've told other interested parties I'll stand behind these heads until you're happy. Even talk you through installing them over the phone and give you every cent of your money back if they won't work.
10-22-2012, 09:49 PM
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I am putting together a budget H/C/I LS1 with stock bottom end for a 2000 T56 Formula and I am new to the LS engine. Can the pistons be flycut while the engine is still in the car? Please PM me what you would be willing to sell me the heads for shipped to 46310 and your recommendations. Did you check to see if you had the shorter pushrods? Thanks!
03-15-2014, 11:44 AM
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I know this question is old but its valid so I'll answer it for anyone reading it now that might be curious
Yes, you can rent or buy a fly cutting tool from one of our vendors. The tool shaft is the same size as a valve stem to utilize the valve guides. The depth is controlled by a locking collar you set before you start cutting. Its easily done with the shortblock still installed/drivetrain attached.
When the deck is clean and dry you'll want to cover both sides with masking tape. Not only does this allow you to easily see your progress, it completely prevents any metal from entering the shortblock. I'm totally comfortable with this method even while being highly meticulous.
Yes, you can rent or buy a fly cutting tool from one of our vendors. The tool shaft is the same size as a valve stem to utilize the valve guides. The depth is controlled by a locking collar you set before you start cutting. Its easily done with the shortblock still installed/drivetrain attached.
When the deck is clean and dry you'll want to cover both sides with masking tape. Not only does this allow you to easily see your progress, it completely prevents any metal from entering the shortblock. I'm totally comfortable with this method even while being highly meticulous.
