LS3 & L92 Info
SDPC does not list them per head or as a pair. If you know, there is no need to be a smart *** about it. Also, SDPC is a sponsor here so it is OK to post links. Plus you can save us all the phone call.
Teching In
Joined: Aug 2006
Posts: 49
Likes: 0
The heads are $175.00 each & it is best to go with all Manley valves & springs for the price. I have the bare heads & all Manley Pro-Flo cut stainless valves & they are sweet.
http://s85.photobucket.com/albums/k7...valveclose.jpg
http://s85.photobucket.com/albums/k7...ent=heads1.jpg
http://s85.photobucket.com/albums/k7...alvebottom.jpg
http://s85.photobucket.com/albums/k7...ent=valves.jpg
Notice in the pics how the valves are polished and the area in the ports is under-cut to flow about 20% more then stock. I have less then $1100.00 into them complete also good to about .620 lift. LOL
http://s85.photobucket.com/albums/k7...valveclose.jpg
http://s85.photobucket.com/albums/k7...ent=heads1.jpg
http://s85.photobucket.com/albums/k7...alvebottom.jpg
http://s85.photobucket.com/albums/k7...ent=valves.jpg
Notice in the pics how the valves are polished and the area in the ports is under-cut to flow about 20% more then stock. I have less then $1100.00 into them complete also good to about .620 lift. LOL
Last edited by SS Blazer 07; Jun 12, 2007 at 07:54 AM.
I read somewhere that the bare heads are made from castings that don't flow quite as well as the casting being used in the assembeld heads. Does anyone have any info on this?
By the way, those valves look sick!
By the way, those valves look sick!
On The Tree
Joined: May 2004
Posts: 104
Likes: 0
From: Denver CO.
Originally Posted by GIGAPUNK
I read somewhere that the bare heads are made from castings that don't flow quite as well as the casting being used in the assembeld heads. Does anyone have any info on this?
By the way, those valves look sick!
By the way, those valves look sick!
Yes, the bare heads are not finished like the assembled heads. You'll need to do clean up work and a good valve job on them to achieve the same results. And, as mentioned, the stock valves are a two piece design and should be replaced in a severe duty application.
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Teching In
Joined: Apr 2004
Posts: 34
Likes: 0
12582713 for the complete assy. $413.50ea
If it were me, I would buy bare castings and an aftermarket valvetrain. (the stock valves are 2 piece)
I have researched the L92 and put into a nice spreadsheet that should help you guys out. Email me if you would like a copy. randy@attituderacing.com
If it were me, I would buy bare castings and an aftermarket valvetrain. (the stock valves are 2 piece)
I have researched the L92 and put into a nice spreadsheet that should help you guys out. Email me if you would like a copy. randy@attituderacing.com
Teching In
Joined: Apr 2006
Posts: 5
Likes: 0
Originally Posted by Mochanic
12582713 for the complete assy. $413.50ea
If it were me, I would buy bare castings and an aftermarket valvetrain. (the stock valves are 2 piece)
I have researched the L92 and put into a nice spreadsheet that should help you guys out. Email me if you would like a copy. randy@attituderacing.com
If it were me, I would buy bare castings and an aftermarket valvetrain. (the stock valves are 2 piece)
I have researched the L92 and put into a nice spreadsheet that should help you guys out. Email me if you would like a copy. randy@attituderacing.com
Originally Posted by Leadfoot1
Is this a new trend that i'm not aware of....Letting people know when you subscribe to a thread???
Its not like we need this information,
Lead.
Its not like we need this information,
Lead.
lol, its because alot of people have it set to automatically subscribe when you post in a thread.
rather then click the link to subscribe, (that is hard to see and alot of people dont know about) they just post in the thread, and its added automatically.
Originally Posted by GIGAPUNK
'04 yukon, can you define "clean up"?
I didn't realize the stock valves were 2 piece. How is that possible and up to what power levels should they replaced with say, Manley valves?? How come the SDPC versions come with stock valves and are making excellent power with them?
Originally Posted by GIGAPUNK
I read somewhere that the bare heads are made from castings that don't flow quite as well as the casting being used in the assembeld heads. Does anyone have any info on this?
By the way, those valves look sick!
By the way, those valves look sick!
statement is false..... I have a set of bare castings that where ported to flow over 365cfm..... all it took was some massaging by the right fella.
if I where buying them stock without plans of porting the finished heads are the only way to go!