944 cylinder heads on 928?
10-26-2005, 09:59 AM
#31
Racer
Thread Starter
Join Date: Oct 2005
Location: middle of nowhere, USA
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
I am looking for a whole bunch of different parts for my project cars, and it sounds like you have lots of the good stuff. How expensive is shipping from Down under to the US typically? What do you have in mind for the Euro heads as well as the GT heads and intake?
10-26-2005, 11:35 AM
#32
Racer
Thread Starter
Join Date: Oct 2005
Location: middle of nowhere, USA
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
Does anyone have any good detail photos of the 968 heads? Curious to see exactly how this shorter exhaust thrust bearing end looks and how it might be corrected for 928 use. Are the 968 Exhaust ports in differnt positions from the 928 like the intake ports?
10-26-2005, 12:09 PM
#33
Three Wheelin'
Originally Posted by EB338
I have been doing a lot of homework and no small amount of searching for the european 928S 16v big valve cylinder heads. I was told that the 2v 944 cylinder heads have the same big valves and bolt right up with minimal modification. (minimal modification being a relative term I am sure).
Has anyone seen or done this? What modification is required?
Do the 2v 944 heads have the same ports and flow capacity as the euroS heads in addition to the same size big valves?
Are all 2v 944 heads created equal or is there a particular head that equals the Euro 928S heads?
Can the 944 heads be ported/modified as much as the Euro 928S heads?
Is the cam drive and related components the same as well?
This would seem to be a much easier thing to find than the Euro 928S heads yet I havent seen or heard much about the swap so I figured there had to be something different or difficult to keep this from being a common practice.
Has anyone seen or done this? What modification is required?
Do the 2v 944 heads have the same ports and flow capacity as the euroS heads in addition to the same size big valves?
Are all 2v 944 heads created equal or is there a particular head that equals the Euro 928S heads?
Can the 944 heads be ported/modified as much as the Euro 928S heads?
Is the cam drive and related components the same as well?
This would seem to be a much easier thing to find than the Euro 928S heads yet I havent seen or heard much about the swap so I figured there had to be something different or difficult to keep this from being a common practice.
10-26-2005, 04:26 PM
#34
As to shipping from Oz to the states, it just depends what you want, I would employ a shipping agent, you are probably wasting your time looking for Euro stuff in the States. We only got euro stuff here, but as you can imagine after 20 years it is just starting to dry up. If you were going to go the big 2 valve route I would get the port work done here by my guys as they have now spent the time to develop the ports. Also I have found all the bits we need to make this stuff work, I should add, I hope it works. As a fellow Aussie followed a different route and is now having some difficulty.
Cheers Greg
Cheers Greg
10-26-2005, 05:17 PM
#35
This is usually where I just shut up and say "Thanks for the advice and Knowledge" because I am always trying to reinvent the wheel.
Sterling DID reinvent the wheel here, and it works for him. He is telling us in hindsite, that there are some options that would probably be 90% of the outcome with 30% of the effort (and time and money).
Without being to buddy buddy with my buddy from Dallas, I'd say listen to the man. I've done some stuff I'd love 20/20 on, and I'll tell everyone who will listen.
Sterling DID reinvent the wheel here, and it works for him. He is telling us in hindsite, that there are some options that would probably be 90% of the outcome with 30% of the effort (and time and money).
Without being to buddy buddy with my buddy from Dallas, I'd say listen to the man. I've done some stuff I'd love 20/20 on, and I'll tell everyone who will listen.
Originally Posted by Sterling
i
yes the tensioner issue could be resolved with custom camshafts.... however be ready to spend some real money here. 6-8K just for cams... oh, I'd recommend fabbing up some prototypes 1st @ another 3-4K.... hindsight being 20/20 its not worth the money. The main reason is that the S4 sprockets are too big, 1 too many teeth to allow the variocam tensioner to do its work.
Go where others have gone... port the S4 heads and use the larger 968 intake valves.... go with some custom grind cams, and you are done.
yes the tensioner issue could be resolved with custom camshafts.... however be ready to spend some real money here. 6-8K just for cams... oh, I'd recommend fabbing up some prototypes 1st @ another 3-4K.... hindsight being 20/20 its not worth the money. The main reason is that the S4 sprockets are too big, 1 too many teeth to allow the variocam tensioner to do its work.
Go where others have gone... port the S4 heads and use the larger 968 intake valves.... go with some custom grind cams, and you are done.
10-28-2005, 10:15 AM
#36
Racer
Thread Starter
Join Date: Oct 2005
Location: middle of nowhere, USA
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
Greg:
I need to revisit your cylinder head post and see what exactly was done to your heads. How much did the port work cost? I know I will need at least the port work you have done to feed 7.0L Do you have any flow bench numbers? What was the different way the other Aussie you mentioned took and what problems is he having?
I need to revisit your cylinder head post and see what exactly was done to your heads. How much did the port work cost? I know I will need at least the port work you have done to feed 7.0L Do you have any flow bench numbers? What was the different way the other Aussie you mentioned took and what problems is he having?
