853 cnc heads, recently rebuilt
Thread Starter
On The Tree
Joined: Feb 2019
Posts: 171
Likes: 13
From: Texas
853 cnc heads, recently rebuilt 
I have a very nice set of 853 cnc heads that have been hand worked, blended,bigger intake valves I believe, and has double valve springs with Ti retainers. Idk if they have been milled Or not. I bought the car with the heads on it. Pushrods I pulled out were a 7.400 length so I'm assuming not milled much. Let me know what they would be worth with valve springs and how much without the valve springs.
I have a set of cnc 799s going on the New Build I have going on so I thought of just keeping the valve springs off of the 853s since they don't have that many miles. Thanks
Last edited by C5SixSpeedZ51; Apr 1, 2019 at 08:53 PM.
$1 to $600 without specific details.
Who did the CNC?
Who hand finished?
Any specifics on hp they made?
Any flow numbers?
How many passes and how many miles?
What's valve guide material?
What spring package? Good to what lift? Spring pressure?
Need actual valve sizes to have a better idea of the work done.
Someone will probably give you $200 to $300 for them with out any details.
An unknown used set of springs we don't know anything about I would value at zero. Probably have to buy a BTR or other spring kit to know what's being set up.
A old set of used Stage 2 TEA's 5.3's in good condition are worth $500 to $750 in my opinion depending on the details but they are a known cylinder head with proven performance.
Who did the CNC?
Who hand finished?
Any specifics on hp they made?
Any flow numbers?
How many passes and how many miles?
What's valve guide material?
What spring package? Good to what lift? Spring pressure?
Need actual valve sizes to have a better idea of the work done.
Someone will probably give you $200 to $300 for them with out any details.
An unknown used set of springs we don't know anything about I would value at zero. Probably have to buy a BTR or other spring kit to know what's being set up.
A old set of used Stage 2 TEA's 5.3's in good condition are worth $500 to $750 in my opinion depending on the details but they are a known cylinder head with proven performance.
Thread Starter
On The Tree
Joined: Feb 2019
Posts: 171
Likes: 13
From: Texas
The guy I bought the Car from said they had just been freshly redone, mileage is unknown, but I will say that the Intake ports are very clean like they havent been ran long. The previous owner said the heads were done by East Texas Muscle Cars. It has TSP pushrods and Cam so I'm assuming they are the TSP Valve spring kit, as he told me all those goodies came from there. I will try and clean them up some and throw some more pics up.
Last edited by C5SixSpeedZ51; Apr 2, 2019 at 10:51 PM.
