Contour Enthusiasts Group Archives Forums Modifications Duratec Performance CNC Machine /Comp. 5 Angle Valve Job to D. Heads

wattspxr,
I realize what you're trying to do here, but to get anyone to bite you may want to get some more info as to the time and cost aspects of something like this. Also I see that you're looking for 3l's, supercharged cars and fully modified cars. I drive a nearly stock SVT (big intake,TB,Mufflers{not duals,yet}and soon an AFC). My interest is to START with the heads, and cams when/if it happens. My car sits in the garage 6.9 days a week, so time's not a real problem. I just have a little issue sending my heads to Cali for who knows how long and to have the bill be much higher than estimated unexpectedly. I love to spend money, but I like to know what im dumping it in. Love the idea though, and would love to make it happen!! I need a little more power to justify the Quaife from mr Haines!

Sharkey obviously you must be kind of new here or else you would have already known that you can't post prices in this section. If you want to know of pricing, go to the Group Buy section as stated in my First Post here. There are no hidden costs here, we find out what shipping will be for you to send the heads to us and send it back + the cost of doing the work. There are additional cost involved if you want us to disassemble and reassemble your valve train but it won't be much. The time it would take to program the CNC to port the heads would be about a week or so, than once thats taken cared of we will start cutting away. I would say to be safe for this first round it'll be a month, though it could be faster. But when you consider the average shipping time of 5-days, total of 10 business days to/fro, 1 week to program CNC and then I would say at least a 1-2 wks to work on the heads. Just understand that the benefit you get here is the low initial cost to do such a mod. Believe me the price I'm offering to CNC and do Valve work is pretty cheap at the onset. So you're being a guinea pig basically as far as how long it'll take be at a cost savings to you.

Where is it written that you can't post prices in this or any other section? I just skimmed the forum rules and saw nothing of the sort. I have always posted my prices openly when ever anyone asks and think it's a silly pain in the arse to have to direct someone to a totally different site, or portion of this site to get those costs across. If someone can show me where it's written, I'll stop it...

There's no rule about posting prices for new products, etc... just no classified ads!

-Lance

Thanks Lance!!!

Hey Micah - I've tried to derive what 5 angle valve vs. a 1 or 3 angle valve is... but I'm failing. Care to explain that for me?
Also, what would new heads do for reliability? Are there many issues with swapping out heads or are they a pretty stress free mod? Are there any other mods necessary to make the heads work "right?" I.E. different spark plugs, A/F tuning capability, etc?
One last thing - does this change the compression ratio? If not, could you make the new heads change the compression?

Originally posted by Derk2000:

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Also, what would new heads do for reliability?

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Derek, if I were going to pull the heads and mod them I would look into the 6 oil return (instead of 4) 2.5 heads (2002+??) I think David Z first mentioned this. If confirmed a 6 oil return head may mean less oil pooling in head = less oil starvation. Anybody have info on this?

Great, and all this time I always thought it was against policy to speak of pricing on any section besides GB/Classifieds. Thanks, Brad

Derek as far as reliability goes, this will not change anything as far as reliability. Heads will be optimized, that's all, allowing for a big increase in airflow. We won't be milling the heads to increase compression if that's what you're asking. I can tell you that the process we will be doing will make a very big difference if exhaust and intake mods are matched to the heads.

Try doing a search on 3 n 5 angle valve work. Explaining it would be a little harder then you being able to see a pic of it....

Originally posted by Dan Nixon:

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Derek, if I were going to pull the heads and mod them I would look into the 6 oil return (instead of 4) 2.5 heads (2002+??) I think David Z first mentioned this. If confirmed a 6 oil return head may mean less oil pooling in head = less oil starvation. Anybody have info on this?

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The problem being that the blocks are different for the newer 6 hole return, i.e. the return hole we have to plug for 3L hybrids. Put a 6 hole return head on a 5 hole return block and you'd be spilling oil everywhere, LOL!

Brad...

Dooouuugghhhhh!!
Hmmm, but it seems like a good option for the 2.5/3 hybrid (if ports match up?)..better oil return, no plugging holes, high CR..best of both worlds.