Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Engine Rebuild

Thread Tools
 
Search this Thread
 
Old Jan 19, 2009 | 08:29 PM
  #1  
shads's Avatar
shads
Thread Starter
Track Day
 
Joined: Jan 2009
Posts: 18
Likes: 0
Default Engine Rebuild

Hello,

If the time ever comes... how much can I expect to pay for a full engine rebuild? If this is too general of a question. Please educate me..
Reply
Old Jan 19, 2009 | 08:34 PM
  #2  
LT Texan's Avatar
LT Texan
Rennlist Member
20 Year Member
 
Joined: May 2001
Posts: 5,278
Likes: 16
From: Austin, TX
Default

having an idea of what's under the hood would help. What year?
Reply
Old Jan 19, 2009 | 09:07 PM
  #3  
shads's Avatar
shads
Thread Starter
Track Day
 
Joined: Jan 2009
Posts: 18
Likes: 0
Default

Originally Posted by Dan Perez
having an idea of what's under the hood would help. What year?
Woops! lol 90' S4 5.0L
Reply
Old Jan 19, 2009 | 09:11 PM
  #4  
Mrmerlin's Avatar
Mrmerlin
Team Owner
20 Year Member
 
Joined: May 2004
Posts: 31,169
Likes: 4,165
From: Philly PA
Default

if you do the work plus parts about 4500 if you pay someone about 9500
Reply
Old Jan 19, 2009 | 09:15 PM
  #5  
shads's Avatar
shads
Thread Starter
Track Day
 
Joined: Jan 2009
Posts: 18
Likes: 0
Default

Originally Posted by Mrmerlin
if you do the work plus parts about 4500 if you pay someone about 9500
9500.. alittle more than I anticipated. Good to know! Thank you!
Reply
Old Jan 19, 2009 | 09:50 PM
  #6  
devilinblack's Avatar
devilinblack
Addict
Rennlist Member
 
Joined: May 2004
Posts: 532
Likes: 1
From: North OC, CA
Default

I'd think a lot of that would also be a definition of "full rebuild"? Besides the obvious of gaskets/hoses/TB, what does the $4500 estimate get you?
Reply
Old Jan 19, 2009 | 09:52 PM
  #7  
the flyin' scotsman's Avatar
the flyin' scotsman
Rennlist Member
20 Year Member
 
Joined: Oct 2004
Posts: 10,717
Likes: 58
From: Southern Alberta, Canada
Default

928 Int have a couple of used for sale at far less a price.
Reply
Old Jan 19, 2009 | 09:58 PM
  #8  
BC's Avatar
BC
Rennlist Member
20 Year Member
 
Joined: Dec 2001
Posts: 25,186
Likes: 105
Default

Full rebuild:

Heads - 1200-3000
New Rings - 250
New Rod Bearings - 200
New Main bearings - 300
Resize big end of rods - 100
New small end bushings - 150
Coat pistons to reuse - 400
Redo Alsuil bores (optional) 400
Seals - 500
(Optional) - Drill crank for better oiling - 750
(Optional) - Balance - 500

And no, I won't add that up. I don't want to know.
Reply
Old Jan 19, 2009 | 11:29 PM
  #9  
RyanPerrella's Avatar
RyanPerrella
Nordschleife Master
15 Year Member
 
Joined: Apr 2006
Posts: 8,934
Likes: 3
From: theporscheconnection.com
Default

Originally Posted by BrendanC
Full rebuild:

Heads - 1200-3000 $500-$1000 depending on how much of the assembly you do
New Rings - 250 YUP
New Rod Bearings - 200 YEAH
New Main bearings - 300 $200 actually
Resize big end of rods - 100 possibly?
New small end bushings - 150 possibly?
Coat pistons to reuse - 400 not necessary
Redo Alsuil bores (optional) 400 again not something i needed to do
Seals - 500 yeah
(Optional) - Drill crank for better oiling - 750 Not necessary but i would do it the next time i rebuild an engine just for piece of mind
(Optional) - Balance - 500 If you do any crank or piston machining then yes its a given, but if you just reseal then its not necessary either

And no, I won't add that up. I don't want to know.
I think I put about $3,000 into refreshing a GT engine that bent valves. I replaced everything but the main bearings and was very very happy with the results. I did all the work however.
Reply
Old Jan 19, 2009 | 11:38 PM
  #10  
BC's Avatar
BC
Rennlist Member
20 Year Member
 
Joined: Dec 2001
Posts: 25,186
Likes: 105
Default

Thats why I said "Full rebuild"

And 500-1000 - thats not a very good estimate for doing it properly. Chamber cuts, valve spring testing, etc take time. I know how to do it wrong, and I know how to do it right. 16V heads are not cheap. You can't just bring them to anybody.
Reply
Old Jan 19, 2009 | 11:46 PM
  #11  
RyanPerrella's Avatar
RyanPerrella
Nordschleife Master
15 Year Member
 
Joined: Apr 2006
Posts: 8,934
Likes: 3
From: theporscheconnection.com
Default

my price for heads was to have seats installed in the exhaust side, and 32 valves cut and 32 seats cut. And this price came from one of if not the most well known 928 engine rebuilders. I didnt make this up.

I was going to reassemble (and disassemble too), and the price was $500. I think its safe to say that they can cost more then $1000, but i dont think a whole lot more then that. I dont think it costs $3,000 to have heads rebuilt. Maybe if you go to larger valves and aftermarket seats and so on and so forth, but thats not rebuilding heads, thats a whole other turkey.

The car in question is a 32V BTW
Reply
Old Jan 20, 2009 | 01:59 AM
  #12  
largecar379's Avatar
largecar379
Three Wheelin'
 
Joined: Jan 2007
Posts: 1,466
Likes: 0
From: not where you think I am
Default

Originally Posted by BrendanC
16V heads are not cheap. You can't just bring them to anybody.


I respectfully disagree.

most machine shops can handle 16V or 32V heads without any issues, as long as you are looking for a standard refresh.

race porting, 5 angle valve grinds, bigger valves, unshrouding, port matching, spring matching, and anything else you can think of.... is not work that I would trust to just any machine shop---with that I would agree.

and yes, 16V heads are cheap. a set of Euro's were here last week for $500 (?)

I have several pairs (of various flavors)..........need some?






--Russ
Reply
Old Jan 20, 2009 | 02:09 AM
  #13  
BC's Avatar
BC
Rennlist Member
20 Year Member
 
Joined: Dec 2001
Posts: 25,186
Likes: 105
Default

Originally Posted by largecar379

and yes, 16V heads are cheap. a set of Euro's were here last week for $500 (?)
You are talking about 8V heads. I am talking about 16V heads.
Reply
Old Jan 20, 2009 | 06:21 AM
  #14  
Mrmerlin's Avatar
Mrmerlin
Team Owner
20 Year Member
 
Joined: May 2004
Posts: 31,169
Likes: 4,165
From: Philly PA
Default

dont forget all of the extras, pulleys knock sensors, CPS, TPS, Flappy pot, hoses, injectors, igniton wires, dist. caps, rotors
Reply
Old Jan 20, 2009 | 11:39 AM
  #15  
shads's Avatar
shads
Thread Starter
Track Day
 
Joined: Jan 2009
Posts: 18
Likes: 0
Default

ok...so a full rebuild for a 32v 5.0L WITHOUT rotors, dist, caps, ignition wires and plugs is..........?
Reply



All times are GMT -3. The time now is 05:30 AM.