Like Tree0Likes

Head Gasket debate, more info requested.

Reply
Old 11-04-2002, 10:34 PM
  #11
Registered
 
Join Date: Oct 2002
Location: Palos Heights, IL.
My Boats: 78 Donzi F22
Posts: 15
Default

Fel-Pro has a head gasket with a stainless O-ring (copper for alum. heads) intended just for forced induction. It's quite expensive but seems to work. I have had them on my turbo'd 454 for 15 years and 1200 hours and it still runs great. I can't remember the part #, but back in 1987 when I built the engine, I consulted Fel-Pro and had to special order them.
Rodger is offline  
Reply With Quote
Old 11-04-2002, 10:46 PM
  #12
bobby daniels
Guest
 
Posts: n/a
Default

15 YEARS AGO THE GASKETS WERE RARE AND HARD TO GET NOW THEY ARE EASY JUST NEED THE BORE SIZE AND TYPE HEAD !
8O.00 A PAIR ,EST
ALSO SOME 2OO1 MOTORS WERE SHIPED WITH INNCONEL VALVES ,EASY TO CHECK WITH A MAGNET :

HOPE THIS HELPS SOME !!!
 
Reply With Quote
Old 11-05-2002, 12:57 AM
  #13
VIP Member
Trade Score: (1)
 
Smitty's Avatar
 
Join Date: Apr 2001
Location: Hawthorn Woods IL
My Boats: 2000 Baja 36 Outlaw
Posts: 4,186
Default

Studs provide a better/more even clamping force and because of the material they are made of are less likely to allow head to lift off block under firing. Yes , this really happens but is so slight, especially in a blown application where twice the air/fuel mix is being ignited.
Smitty is offline  
Reply With Quote
Old 11-06-2002, 02:35 PM
  #14
VIP Member
VIP Member
 
26ZX Donzi's Avatar
 
Join Date: Dec 2001
Location: Itasca, IL
My Boats: 2008 Sunsation 288 MCOB
Posts: 248
Default

Bryan,

Don't go with Gaffrig "Coolcharger" as it does not put out near as much hp as a procharger or Gaffrig's new "Extreme Supercharger". Mike Livorsi had a former Merc employee, that started his own hi-perf shop, reprogram the computer. The entire system has worked flawlessly for me so far. They were even able to program into the computer a warning for high fuel/air mix temps in case of intercooler blockage issues.

Give Ron Harris a call at Livorsi Marine as he helped in the design of this system. He can certainly give you additional input - he is on OSO occasionally as Cig28SS. Phone 847-548-5900 ext. 223.

Tim

ps. 170 hours so far with original head gaskets - I know I should probably change them
26ZX Donzi is offline  
Reply With Quote
Old 11-06-2002, 03:01 PM
  #15
bobby daniels
Guest
 
Posts: n/a
Lightbulb

Quote:
Originally posted by Bigwavz
Studs provide a better/more even clamping force and because of the material they are made of are less likely to allow head to lift off block under firing. Yes , this really happens but is so slight, especially in a blown application where twice the air/fuel mix is being ignited.

NOT TRYING TO ARGUE BUT STUDS ARE THE SAME MATERIAL AS BOLTS !!!AS LONG AS THEY ARE GOOD AFTERMARKETS LIKE A R P 'S,,,,,THEY CLAMP BETTER DUE TO SEVERAL REASONS THE MAJN ONE IS THE THREADS ON THE NUT SIDE ARE FINE THREAD SO IF YOU TIGHTEN BOTH TO 50 LBS THE FINE THEAD IS TIGHTER DUE TO MORE LEVER ACTION ,THE SECOND BEST RESON THEY CLAMP BETTER IS THEY DON;T TWIST THE BLOCK SURFACE LIKE BOLTS
ALSO JUST THINK IF THE HEAD LEFT THE DECK SURFACE ,EVEN SLIGHTLY,,IT WOULD CONSTANTLY LEAK COMBUSTION BYPRODUCTS ,IF IT LEAVES THERES A BAD PROBLEM (DETONATION)

BOLTS WORK GREAT WHEN ISTALLED RIGHT, STUDS DO WORK BETTER BUT MOST APPS.DON'T NEED THEM !

HOPE THIS HELPS
 
Reply With Quote
Old 11-06-2002, 03:53 PM
  #16
Registered
 
Love Machine's Avatar
 
Join Date: Nov 2002
Location: Annapolis/Baltimore, MD
Posts: 952
Default

Hey Bobby,

I agree with you. I saw "Two Guys Garage" on Speed Vision go over the advantages of studs. Made a lot of sense to me.
Love Machine is offline  
Reply With Quote
Old 11-06-2002, 03:57 PM
  #17
Donzi33ZX
Gold Member
Thread Starter
 
BryanTuvell's Avatar
 
Join Date: Mar 2001
Location: Suffolk, VA
My Boats: 2003 Donzi 33ZX
Posts: 731
Default

I spent today talking to VORTEC guys, still researching, lots of pros and cons with each....
Thanks
Bryan
BryanTuvell is offline  
Reply With Quote
Old 11-06-2002, 03:59 PM
  #18
Donzi33ZX
Gold Member
Thread Starter
 
BryanTuvell's Avatar
 
Join Date: Mar 2001
Location: Suffolk, VA
My Boats: 2003 Donzi 33ZX
Posts: 731
Default

Bobby, tell more on how to check for INNCONEL VALVES valves, mine is the end of the 502 legend, OM serial number...
Thanks
Bryan
BryanTuvell is offline  
Reply With Quote
Old 11-06-2002, 04:34 PM
  #19
bobby daniels
Guest
 
Posts: n/a
Default

BRIAN,THE INNCONEL PART OF THE VALVE MOST OF THE TIME THE HEAD ONLY WOULD NOT BE PULLED BY A MAGNET AND REGULAR STAINLESS WOULD BE ATTRACTED !!!!

MOST VALVES LIKE THE INNCONEL ARE TWO PART THE HEAD IS INNCONEL AND THE STEM IS STAINLESS

VORTEC IS A GOOD BLOWER OR THE GAFFRIG UNITS
 
Reply With Quote
Old 11-09-2002, 02:43 PM
  #20
donzi-dad
Guest
 
Posts: n/a
Default

have u looked at whipple chargers.they change the inj.reprogram ecu,change fuel pump.heard procharger has fuel issues.
 
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DoTheMath
General Boating Discussion
20
02-11-2007 12:24 PM
ur2slo
Formula
3
08-17-2006 11:01 PM
Formula Outlaw
General Boating Discussion
1
12-28-2004 10:24 PM
traviss
General Q & A
6
12-06-2002 07:35 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:20 PM.


Copyright 2011 OffShoreOnly. All rights reserved.