Behold . . . Head from a 350Z!
I have a set in my garage that is being packed up to sent to Altimat from the Altima board.
If you want pics of the block, rods, pistons, crank, let me know.
The intake ports are large, but the exhaust ports are the same size as the VQ30, so some enlargeing their would help, especiially for boost and juice applications. The compustion chamber is 51.5cc much larger than a VQ30. Notice the dimples in the walls of the intake port for good swirl/tumble. Some bowl work and light cleaning up is all they really need. Coating of the valves for heat rejection would also help.
I have sent the rods and pistons off as samples to have custom parts made for mass pruduction via a well known Nissan performance shop, it should be a few months before thay are ready.
Would their be any intrest in copper head gaskets?
If you want pics of the block, rods, pistons, crank, let me know.
The intake ports are large, but the exhaust ports are the same size as the VQ30, so some enlargeing their would help, especiially for boost and juice applications. The compustion chamber is 51.5cc much larger than a VQ30. Notice the dimples in the walls of the intake port for good swirl/tumble. Some bowl work and light cleaning up is all they really need. Coating of the valves for heat rejection would also help.
I have sent the rods and pistons off as samples to have custom parts made for mass pruduction via a well known Nissan performance shop, it should be a few months before thay are ready.
Would their be any intrest in copper head gaskets?
Originally posted by iris
I just want to say, I thought this subject matter of the thread meant something altogether different (i.e., dirty). LOL! should have figured it wasn't from the forum it was in, i guess.
I just want to say, I thought this subject matter of the thread meant something altogether different (i.e., dirty). LOL! should have figured it wasn't from the forum it was in, i guess.
So your testing the Car tomorrow
with the new headers. Cant wait to see the HP#'s. Over the 300Hp mark would be great with the headers. Keep us posted
This is what i love about this forum, people are always trying to better there car and like to share it with others.
Keep the info coming
Later
Aceman
This is what i love about this forum, people are always trying to better there car and like to share it with others.
Keep the info coming
Later
Aceman
Thread Starter
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From: Nashville, TN
The intake ports are large, but the exhaust ports are the same size as the VQ30, so some enlargeing their would help, especiially for boost and juice applications. The compustion chamber is 51.5cc much larger than a VQ30. Notice the dimples in the walls of the intake port for good swirl/tumble. Some bowl work and light cleaning up is all they really need. Coating of the valves for heat rejection would also help
As far as bowl work, have you had these heads on a flow bench to confirm your suspensions ? We have, as for the combustion chamber volume you have to make it bigger because there is more bore and stroke that will lower compession ratio. duh!!!!!!
Originally posted by dougrace zs
Well, if you had really checked the exhaust ports they are quite a bit larger then the VQ30 and I had to do alot of grinding on the flanges that were made for the VQ30 to make the headers fit.
As far as bowl work, have you had these heads on a flow bench to confirm your suspensions ? We have, as for the combustion chamber volume you have to make it bigger because there is more bore and stroke that will lower compession ratio. duh!!!!!!
Well, if you had really checked the exhaust ports they are quite a bit larger then the VQ30 and I had to do alot of grinding on the flanges that were made for the VQ30 to make the headers fit.
As far as bowl work, have you had these heads on a flow bench to confirm your suspensions ? We have, as for the combustion chamber volume you have to make it bigger because there is more bore and stroke that will lower compession ratio. duh!!!!!!
"OWNED"
Originally posted by dougrace zs
Well, if you had really checked the exhaust ports they are quite a bit larger then the VQ30 and I had to do alot of grinding on the flanges that were made for the VQ30 to make the headers fit.
As far as bowl work, have you had these heads on a flow bench to confirm your suspensions ? We have, as for the combustion chamber volume you have to make it bigger because there is more bore and stroke that will lower compession ratio. duh!!!!!!
Well, if you had really checked the exhaust ports they are quite a bit larger then the VQ30 and I had to do alot of grinding on the flanges that were made for the VQ30 to make the headers fit.
As far as bowl work, have you had these heads on a flow bench to confirm your suspensions ? We have, as for the combustion chamber volume you have to make it bigger because there is more bore and stroke that will lower compession ratio. duh!!!!!!
I really did check them and they are the same size. Do you have VQ30 heads to compare too, I do? Perhaps your flanges are crap?
My coment about the bowls was more directed at the fact that the ports are clean and dont appear to need much work from a DIY perspective. Flow bench, yea sure, i got one next to the valve seat grinder in my basement.
Gosh you are a genius with the cc theory, arent you.
I'm not trying to steal your thunder here doogy, so no need to scent mark your thread.
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Joined: Jul 2002
Posts: 51
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From: RI
Originally posted by MardiGrasMax
I really did check them and they are the same size. Do you have VQ30 heads to compare too, I do? Perhaps your flanges are crap?
My coment about the bowls was more directed at the fact that the ports are clean and dont appear to need much work from a DIY perspective. Flow bench, yea sure, i got one next to the valve seat grinder in my basement.
Gosh you are a genius with the cc theory, arent you.
I'm not trying to steal your thunder here doogy, so no need to scent mark your thread.
I really did check them and they are the same size. Do you have VQ30 heads to compare too, I do? Perhaps your flanges are crap?
My coment about the bowls was more directed at the fact that the ports are clean and dont appear to need much work from a DIY perspective. Flow bench, yea sure, i got one next to the valve seat grinder in my basement.
Gosh you are a genius with the cc theory, arent you.
I'm not trying to steal your thunder here doogy, so no need to scent mark your thread.
"OWNED"