PRC stage 1 heads?
I'm going to go out on a limb and say around 1100 or less. Have they been milled to the point of no return? What springs?
Another way to look at it is, it's not hard to find some 243/799s for 300 bucks a pair and it's 750 to CNC port/valve job and mill to spec if you ship them to Texas Speed. You would know more about what your getting that way. Low miles or not, used is used.
Will be curious to know what the more senior advisors have to say. I'm giving you my thoughts and opinions based on my current knowledge of what's out there for those heads.
Another way to look at it is, it's not hard to find some 243/799s for 300 bucks a pair and it's 750 to CNC port/valve job and mill to spec if you ship them to Texas Speed. You would know more about what your getting that way. Low miles or not, used is used.
Will be curious to know what the more senior advisors have to say. I'm giving you my thoughts and opinions based on my current knowledge of what's out there for those heads.
TECH Senior Member
Joined: Jun 2016
Posts: 22,290
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From: Central Cal.
Being Stage I, they have the stock valves in them, but have a great port job. What are you upgrading to?
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Don't get me wrong, I know the market only bears what it bears.
Sorry for the mini thread jack OP. Good luck with your project.
Because buying used anything modified is a gamble. I had a set of an equivalent heads with a massive port job, (larger than the TSPs as I have both and mic'd them). One head had a pin hole
leak that killed a brand new engine on the dyno due to hydro lock. but you couldn't tell by looking at them and I could have easily sold them for a chunk of cash, if I had no integrity. I did sell them however, someone
wanted to try and repair them, hope he did because they were a great set of heads when they weren't damaged.
leak that killed a brand new engine on the dyno due to hydro lock. but you couldn't tell by looking at them and I could have easily sold them for a chunk of cash, if I had no integrity. I did sell them however, someone
wanted to try and repair them, hope he did because they were a great set of heads when they weren't damaged.
Because buying used anything modified is a gamble. I had a set of an equivalent heads with a massive port job, (larger than the TSPs as I have both and mic'd them). One head had a pin hole
leak that killed a brand new engine on the dyno due to hydro lock. but you couldn't tell by looking at them and I could have easily sold them for a chunk of cash, if I had no integrity. I did sell them however, someone
wanted to try and repair them, hope he did because they were a great set of heads when they weren't damaged.
leak that killed a brand new engine on the dyno due to hydro lock. but you couldn't tell by looking at them and I could have easily sold them for a chunk of cash, if I had no integrity. I did sell them however, someone
wanted to try and repair them, hope he did because they were a great set of heads when they weren't damaged.
Thread Starter
Staging Lane
Joined: Aug 2017
Posts: 97
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