Results 1 to 9 of 9
  1. #1
    absentx's Avatar
    Join Date
    Aug 2006
    Location
    Milwaukee
    Posts
    742
    +1
    8

    Pro 785 head question

    Alright, the project continues very soon, I will open a new thread in a day or two once the rest of my parts are ordered.

    My question is regarding the cylinders and cylinder heads.

    Are 97 pro cylinders supposed to have the grooves in the top of the cylinders for the two o-rings like on the domestics?

    Reason I ask is because I am going to be putting on the Hot Seat head, and I know that uses o-rings, so I just want to know how exactly that will work being that there is no where to put o-rings on my cylinders. Can you use the stock head gasket with the ADA or Hot Seat head?


  2. #2
    TRIPLE PIPES ARE 2-STROKE TURBOS allcool's Avatar
    Join Date
    Nov 2005
    Location
    s fl
    Posts
    414
    No o-rings on stock 785 pro jugs.

    Pro 785 use head gaskets

    Go ADA, Not... hot seat
    I loved my ADA head, it was like a piece of jewelry
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	ada1.JPG 
Views:	131 
Size:	410.4 KB 
ID:	7635   Click image for larger version. 

Name:	ada2.JPG 
Views:	109 
Size:	384.9 KB 
ID:	7636  

  3. #3
    absentx's Avatar
    Join Date
    Aug 2006
    Location
    Milwaukee
    Posts
    742
    +1
    8
    Okay thats what I thought.

    I like how the ADA head has the individual cooling lines. If I went with the hot seat head, I think I would try to modify and tap three fittings into it. I have to assume people have done that before.

    This is a tough decision, the ADA head is actually cheaper, but the problem is that anodized red is not going to match the color scheme I am putting together for the engine compartment. I wonder if I could get a silver or natural colored one.

  4. #4
    ph2ocraft's Avatar
    Join Date
    Apr 2006
    Location
    Campbell, Ca.
    Posts
    14,100
    +1
    105
    Maybe with the money you save, you can get the head cover stripped and anodized whatever color meets your fancy??

  5. #5
    Connecticut CrazyA's Avatar
    Join Date
    Nov 2005
    Location
    CT.
    Posts
    8,141
    +1
    1,051
    If you wanted to, you can definately tap the HotSeat and put fittings in there...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Pro785 004.jpg 
Views:	156 
Size:	247.2 KB 
ID:	7637  

  6. #6
    Definately possible all you need is a brass plug from homedepot to plug the old outlet then drill and tap the new holes for what ever size brass barbed fittings I did it on my Hot Seat head b4 i lost a pistion and ruined the dome, then went to the ADA.

    Will

  7. #7

    Join Date
    Aug 2006
    Location
    Iowa
    Posts
    1,028
    +1
    2
    You could always powdercoat the ADA head.

  8. #8
    absentx's Avatar
    Join Date
    Aug 2006
    Location
    Milwaukee
    Posts
    742
    +1
    8
    Powdercoat could withstand the temperature the head gets to?

  9. #9
    Connecticut CrazyA's Avatar
    Join Date
    Nov 2005
    Location
    CT.
    Posts
    8,141
    +1
    1,051
    Absent,
    Yes, the powdercoat will easily withstand the temps.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Pro 785 fuel question
    By tosborn55 in forum Polaris Open Discussion
    Replies: 2
    Last Post: 08-30-2010, 05:40 PM
  2. Pro Tec Head Question - less water out of pisser
    By kaarona1 in forum Yamaha PWC Performance (2-stroke)
    Replies: 3
    Last Post: 06-06-2010, 04:22 PM
  3. Pro 785 head on a 750 or 780???
    By jkindt in forum Polaris PWC Performance
    Replies: 4
    Last Post: 11-30-2009, 05:22 PM
  4. Pro 785 head bolts? replace with what?
    By RedlineR6 in forum Polaris Open Discussion
    Replies: 2
    Last Post: 04-12-2008, 09:09 AM
  5. PRO 785 head on a stock ski
    By Keddano in forum Polaris Open Discussion
    Replies: 7
    Last Post: 11-27-2007, 05:41 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •