MY new engine package -heads..Opinions please - Aussie V8 | Holden - Ford

rodrat · 07-09-2008, 07:08 PM

have done under 1000 kays on a straight run ,thats why there is some carbon..

greenhj · 07-09-2008, 07:31 PM

they are some nice pics mate, youll get some good info.

looks like the carbs rich as pig looking at that plug.

allports · 07-09-2008, 08:41 PM

Oh dear, another 1 ay? Im already fixing a pair that are the same type of quality. Oh dear oh dear. We need to stamp out this cruddy poor workmanship.

allports · 07-09-2008, 08:57 PM

Here's some pics

PVE · 07-09-2008, 09:19 PM

CNC!!!???
How could anyone send that out of their shop!
CNC done correctly will copy a good port. However, in this case if the casting profile is below the CNC cutter profile you get the above.
And air will not flow well over those undulations

allports · 07-09-2008, 09:29 PM

And more with tags.

allports · 07-09-2008, 09:34 PM

And PVE if you copy a bad port you just get a whole bunch of bad ports! It's not rocket science.

allports · 07-09-2008, 10:16 PM

ProVK · 07-09-2008, 10:18 PM

They look horrid, im no head porter, but it looks like that someone has tries to mimic a CNC using a old 3 axis manual milling machine.

rodrat · 07-09-2008, 10:20 PM

Those heads posted by allports look remarkably similar to mine....
Being no expert at head profiling work,i see the same opinions keep on coming about mine though...and this is what i got though for spending over $3000 of port work on these heads..
Exhaust valve edge looks rough,or is that fine in the combustion chamber?

allports · 07-09-2008, 11:20 PM

Every effort should be made to calm the flow on both sides of the head.

allports · 07-09-2008, 11:49 PM

more of the same

And after a bit of work you get this

GTR308 · 08-09-2008, 01:15 AM

farout now theres some crappy porting, id rather have std heads than that crap

3554me · 08-09-2008, 06:13 AM

i know i dont need to say 3k is a heap of hard earned cash , it's definatley WRONG
u got these things in return ,
i hope u can get your $$$$ for starters or have them pay to fix or better yet buy u a decent pair
good luck rodrat

07-09-2008, 07:07 PM	#1 (permalink)
rodrat casual poster Trade Rating: (0) Join Date: Sep 2008 Location: perth Ride: hr Posts: 53	MY new engine package -heads..Opinions please

07-09-2008, 08:41 PM	#4 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	Oh dear, another 1 ay? Im already fixing a pair that are the same type of quality. Oh dear oh dear. We need to stamp out this cruddy poor workmanship. __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

07-09-2008, 08:57 PM	#5 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	Here's some pics __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

07-09-2008, 09:29 PM	#7 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	And more with tags. __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa Last edited by allports; 07-09-2008 at 11:44 PM.

07-09-2008, 09:34 PM	#8 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	And PVE if you copy a bad port you just get a whole bunch of bad ports! It's not rocket science. __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

07-09-2008, 07:08 PM	#2 (permalink)
rodrat casual poster Trade Rating: (0) Join Date: Sep 2008 Location: perth Ride: hr Posts: 53	have done under 1000 kays on a straight run ,thats why there is some carbon..

07-09-2008, 07:31 PM	#3 (permalink)
greenhj not to be trusted Trade Rating: (0) Join Date: Jun 2006 Location: melbourne Ride: vz crewman, vs wag, the green one, EH prem soon. Posts: 1,848	they are some nice pics mate, youll get some good info. looks like the carbs rich as pig looking at that plug.

07-09-2008, 09:19 PM	#6 (permalink)
PVE casual poster Trade Rating: (0) Join Date: May 2008 Location: Perth Ride: Holden Posts: 305	CNC!!!??? How could anyone send that out of their shop! CNC done correctly will copy a good port. However, in this case if the casting profile is below the CNC cutter profile you get the above. And air will not flow well over those undulations

07-09-2008, 10:16 PM	#9 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	__________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa Last edited by allports; 07-09-2008 at 11:36 PM.

07-09-2008, 10:18 PM	#10 (permalink)
ProVK casual poster Trade Rating: (0) Join Date: Feb 2006 Location: Traralgon Ride: VK Calais, VZ Clubby, VS V8 Ute Posts: 231	They look horrid, im no head porter, but it looks like that someone has tries to mimic a CNC using a old 3 axis manual milling machine.

07-09-2008, 10:20 PM	#11 (permalink)
rodrat casual poster Trade Rating: (0) Join Date: Sep 2008 Location: perth Ride: hr Posts: 53	Those heads posted by allports look remarkably similar to mine.... Being no expert at head profiling work,i see the same opinions keep on coming about mine though...and this is what i got though for spending over $3000 of port work on these heads.. Exhaust valve edge looks rough,or is that fine in the combustion chamber?

07-09-2008, 11:20 PM	#12 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	Every effort should be made to calm the flow on both sides of the head. __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

07-09-2008, 11:49 PM	#13 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,196	more of the same And after a bit of work you get this __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

08-09-2008, 01:15 AM	#14 (permalink)
GTR308 casual poster Trade Rating: (0) Join Date: Sep 2005 Location: 308 performance centre, perth Ride: .LJ torana, vt comm, EH special. Posts: 253	farout now theres some crappy porting, id rather have std heads than that crap __________________ 308 performance centre, perth

08-09-2008, 06:13 AM	#15 (permalink)
3554me casual poster Trade Rating: (3) Join Date: Apr 2008 Location: qld Ride: hz,vn,vk,fb Posts: 385	i know i dont need to say 3k is a heap of hard earned cash , it's definatley WRONG u got these things in return , i hope u can get your $$$$ for starters or have them pay to fix or better yet buy u a decent pair good luck rodrat

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