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Saab Head Porting

Started by Muncher , Jun 16 2011 01:03 PM

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#1 Muncher

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Posted 16 June 2011 - 01:03 PM

Does anyone have any recommendations for people to use to port a SAAB head (and obviously to check it's ok and replace the valve guides)? I may as well begin getting mine together...

#2 NickB787

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Posted 16 June 2011 - 01:10 PM

Does anyone have any recommendations for people to use to port a SAAB head (and obviously to check it's ok and replace the valve guides)?

I may as well begin getting mine together...


I have mine to do as well just get the dremel out and go for it

#3 Muncher

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Posted 16 June 2011 - 01:13 PM

I'd need to check the head is good and there are no cracks in it first. Dr Lee also said it's quite possible to bugger it up and not actually make it flow any better as well...

#4 slindborg

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Posted 16 June 2011 - 01:18 PM

Dr Lee also said it's quite possible to bugger it up and not actually make it flow any better as well...



That goes for any head....

I've seen/tested 'ported' heads that reduce flow/increase flow for some lifts and then fall off rapidly etc. All good fun.

Infact I've increased flow/velocity by reducing the port size in some cases :)

#5 Seb.F

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Posted 16 June 2011 - 01:21 PM

That goes for any head....
Infact I've increased flow by reducing the size in some cases :)


Is that a principle you carry elsewhere? :lol:

#6 Muncher

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Posted 16 June 2011 - 01:24 PM

I have a porting kit, but started polishing the bit in the combustion chamber and decided that was hard work... It didn't help that I didn't have a compressor or die grinder really up to doing the job :/

#7 Phear

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Posted 16 June 2011 - 03:16 PM

I did mine myself with a dremel, z22 rather than Saab head but principals the same. If you are actually going to change the shape of the ports then find an expert, but if your just going to widen them a little and remove any casting marks etc then anyone can do it. Just avoid the valve seats themselves.

#8 TheHood

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Posted 16 June 2011 - 04:48 PM

Dave Crissel at all stage cylinder heads does work for Courtnays and is very highly regarded Posted Image

Call 01869 811132

#9 Crazyfrog (Fab)

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Posted 16 June 2011 - 04:50 PM



you could always ask vocky if he has any spare time :blush:

#10 davemate

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Posted 16 June 2011 - 07:37 PM

i am interested in what you find out... i have a saab head sitting here doing not a lot right now!

#11 VX-GT

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Posted 16 June 2011 - 07:43 PM

Dave Crissel at all stage cylinder heads does work for Courtnays and is very highly regarded Posted Image

Call 01869 811132



I doubt If Mr Grumpy Dave will be interested He now prefers to work on new heads

He is extremely busy working 14-16 hours a day 6-7 days a week
He is planning to sell his business next year to me

#12 Nev

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Posted 16 June 2011 - 08:21 PM

I doubt If Mr Grumpy Dave will be interested He now prefers to work on new heads

He is extremely busy working 14-16 hours a day 6-7 days a week
He is planning to sell his business next year to me



Wow - really? That sounds interesting. Is he jsut a 1 man band?

#13 slindborg

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Posted 17 June 2011 - 08:05 AM

If Mr Roper has some spare time He'd be my first port (:lol:) of call

#14 The Batman

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Posted 17 June 2011 - 09:50 AM

Must resist commenting.... I can't There goes that business :lol:

#15 martylemoo

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Posted 17 June 2011 - 09:57 AM

KiwiRog is your man for head porting:- http://www.sabre-heads.co.uk/1.html

#16 Nev

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Posted 17 June 2011 - 12:52 PM

You could try Neil Roper, he did good job on my head it seems. When I talked to him, he conseratively thought he'd improve VE by about 2% or 3% on my Z20LET head by porting it.

Edited by Nev, 17 June 2011 - 12:53 PM.

#17 davemate

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Posted 18 June 2011 - 11:06 AM

You could try Neil Roper, he did good job on my head it seems. When I talked to him, he conseratively thought he'd improve VE by about 2% or 3% on my Z20LET head by porting it.


yes, but according to your build website... you paid him £550 :blink:

i never thought that it would cost so much for a head port?

-nice site by the way

#18 slindborg

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Posted 18 June 2011 - 04:34 PM


You could try Neil Roper, he did good job on my head it seems. When I talked to him, he conseratively thought he'd improve VE by about 2% or 3% on my Z20LET head by porting it.


yes, but according to your build website... you paid him £550 :blink:

i never thought that it would cost so much for a head port?

-nice site by the way



seems a little higher than the going rate for someone experienced in head for cash :lol: but not terrible given cheap ones can wreck things.

#19 The Batman

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Posted 18 June 2011 - 05:33 PM

Head porting is expensive due to the amount of boredom of doing it :lol:

#20 steveboyslim

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Posted 18 June 2011 - 09:17 PM


You could try Neil Roper, he did good job on my head it seems. When I talked to him, he conseratively thought he'd improve VE by about 2% or 3% on my Z20LET head by porting it.


yes, but according to your build website... you paid him £550 :blink:

i never thought that it would cost so much for a head port?

-nice site by the way


That price did include the fitting of new valve guides and the extra work needed for the +1.0mm oversixe valves.
What do you expect to pay ?
Any of the other people mentioned will charge similar money.

Steve
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