Splayed LT1 caps?
05-25-2009, 04:36 AM
#1
Registered User
Thread Starter
Join Date: Aug 2006
Location: Orem, UT
Posts: 1,497
Splayed LT1 caps?
Where do you get these? Summit only has them for Gen 1 engines.
Also can you drill the holes yourself if you use a flat end mill to provide a surface perpendicular to the drill bit?
Are you supposed to drill through to the water jacket?
Also can you drill the holes yourself if you use a flat end mill to provide a surface perpendicular to the drill bit?
Are you supposed to drill through to the water jacket?
Last edited by MikeGyver; 05-25-2009 at 04:38 AM.
05-25-2009, 09:22 AM
#3
Registered User
Join Date: May 2006
Location: Ohio
Posts: 1,855
I am 90% sure LT1 can take a gen 1 main cap(double check). However main caps is no where close to a DIY project.
05-25-2009, 10:08 AM
#4
Administrator
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,825
05-25-2009, 10:10 AM
#5
Registered User
Join Date: Jan 2001
Location: Farmington Hills, MI
Posts: 657
I would use flat register ProGram caps. Some of the other caps use the stock two-bolt block register which makes them harder to setup and less effective in controlling cap movement - the whole purpose of adding extra main bolts. Might as well get the steel front while you're in there.
You'll need a good machine shop that has done this before and can align bore/hone the mains. You're best bet is to look for a good engine builder in your area.
3 centers - SB350C12F
Front - SB350F
Have you looked into the planned Dart LT1 SHP block?
You'll need a good machine shop that has done this before and can align bore/hone the mains. You're best bet is to look for a good engine builder in your area.
3 centers - SB350C12F
Front - SB350F
Have you looked into the planned Dart LT1 SHP block?
05-25-2009, 08:05 PM
#7
Registered User
Join Date: Dec 1999
Location: Petersham, MA
Posts: 1,697
05-26-2009, 11:13 PM
#11
Registered User
Thread Starter
Join Date: Aug 2006
Location: Orem, UT
Posts: 1,497
Ive seen a brand that comes with a guide for a drill bit. You put the 2 center bolts on and using the guide, drill the outer holes. If you used a flat end mill to square up the drilling surface, it sounds fairly easy.
Could double check the registers with plastigauge.
Could double check the registers with plastigauge.
05-26-2009, 11:42 PM
#12
Registered User
Join Date: May 2004
Location: Bay Area, CA
Posts: 2,001
05-27-2009, 12:10 AM
#13
Registered User
Thread Starter
Join Date: Aug 2006
Location: Orem, UT
Posts: 1,497
Yes, I'm looking for an honest answer.
I trying to gather enough information to decided whether or not it's something I want to try. No offense to your experience or anything, but a mechanically competent person does not need superhuman capabilities of year of experience to do most things. Plus another point, the manufacturer of those splayed caps provides a method for the end user to do it by themself. If it was THAT difficult there's no way in hell they'd do that. There's plenty of these engines driving around that people have done themselves.
You can see how the typical "dont try it, you'll just ruin your stuff" answer isn't going to help here.
I trying to gather enough information to decided whether or not it's something I want to try. No offense to your experience or anything, but a mechanically competent person does not need superhuman capabilities of year of experience to do most things. Plus another point, the manufacturer of those splayed caps provides a method for the end user to do it by themself. If it was THAT difficult there's no way in hell they'd do that. There's plenty of these engines driving around that people have done themselves.
You can see how the typical "dont try it, you'll just ruin your stuff" answer isn't going to help here.
Last edited by MikeGyver; 05-27-2009 at 12:15 AM.
05-27-2009, 12:30 AM
#14
Registered User
Join Date: May 2004
Location: Bay Area, CA
Posts: 2,001
Yes, I'm looking for an honest answer.
I trying to gather enough information to decided whether or not it's something I want to try. No offense to your experience or anything, but a mechanically competent person does not need superhuman capabilities of year of experience to do most things. Plus another point, the manufacturer of those splayed caps provides a method for the end user to do it by themself. If it was THAT difficult there's no way in hell they'd do that. There's plenty of these engines driving around that people have done themselves.
You can see how the typical "dont try it, you'll just ruin your stuff" answer isn't going to help here.
I trying to gather enough information to decided whether or not it's something I want to try. No offense to your experience or anything, but a mechanically competent person does not need superhuman capabilities of year of experience to do most things. Plus another point, the manufacturer of those splayed caps provides a method for the end user to do it by themself. If it was THAT difficult there's no way in hell they'd do that. There's plenty of these engines driving around that people have done themselves.
You can see how the typical "dont try it, you'll just ruin your stuff" answer isn't going to help here.
The manufacturer of those quasi splayed caps(milodon) which don't give you the benefits of a true flat cap still need to have the register precisely machined square to the main line and for the proper press, they also need to have the proper gap set up between the outer flange and the block, thirdly the drill bushing is not provided so that it can be done with a hand drill, it's there simply to help keep the bit aligned when in a milling machine.
Lastly I feel pretty insulted that you insinuate that my answers (which mimic those of others in this thread) are less than completely honest - I think there's quite a few people on this forum who would say they have benefited from my free advice and information over the years as I have never attempted to steer someone towards a conclusion that would result in my personal gain.
Done with this thread.