Boats For Sale:
Cracked Head |
Post Reply 
|
| Author | |
Delta Greg 
Newbie 
Joined: June-28-2017 Location: California Status: Offline Points: 15 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Cracked HeadPosted: June-29-2017 at 12:49pm |
|
I've got a 1993 Ski Nautique with a cracked head. I bought it that way because the previous owner didn't tell me it was cracked. He had JB Welded the head back together. The JB Weld seemed to hold for a long time, so I JB Welded it again and it seems to be OK for now, but I realize that I should probably be on the lookout for new heads. Just curious which heads to look for. I think my boat has the standard PCM 351W engine. Will the pro boss and GT-40 heads bolt right up? The boat has plenty of power now, but while I'm doing the heads, is it worth upgrading to better heads?
|
|
 |
|
|
TRBenj
Grand Poobah 
Joined: June-29-2005 Location: NWCT Status: Offline Points: 21171 |
Post Options
Thanks(0)
Quote Reply
Posted: June-29-2017 at 1:10pm |
|
If just an external water jacket crack, that jb weld repair might last a very long time without issues.
GT40, or even better, GT40P heads can be swapped right on (and add 40-50hp). Head bolt holes on any 302 based head will need to be drilled out for use on a 351w. |
|
|
|
|
Jonny Quest
Grand Poobah
Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2957 |
Post Options
Thanks(0)
Quote Reply
Posted: June-29-2017 at 9:17pm |
|
The GT-40P heads come up on Ebay constantly. Like Tim says, some of the GT-40 heads have different head bolt diameters. You want 1/2" diameter head bolt holes. Those heads that came off the 302 typically have the smaller holes and need to be drilled. Not a big deal and most head shops or machine shops can easily do it.
|
|
|
Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
|
|
|
|
KENO
Grand Poobah
Joined: June-06-2004 Location: United States Status: Offline Points: 11061 |
Post Options
Thanks(0)
Quote Reply
Posted: June-29-2017 at 10:47pm |
|
here's a recent thread on GT40P heads if you happen to go that route and need to drill them out yourself.
Gotta agree with TRB on the epoxy repair. It might last a long time |
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options