Yet another LSx swap thread
Racer
Joined: Sep 2005
Posts: 344
Likes: 0
From: Duncanville Texas
ls swap
Wow definitley D.O.A. But as far as the swap goes the tailshaft would be the only issue.
G.M.P.P. swap harness/ecm
Speedhound motor mount adapters (just got mine the other day)
Melrose C4 LSx swap headers
For the trans mount, do a search on solid rear conversions most use autos but the concept most have come up with is basically the same.
G.M.P.P. swap harness/ecm
Speedhound motor mount adapters (just got mine the other day)
Melrose C4 LSx swap headers
For the trans mount, do a search on solid rear conversions most use autos but the concept most have come up with is basically the same.
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
Wow definitley D.O.A. But as far as the swap goes the tailshaft would be the only issue.
G.M.P.P. swap harness/ecm
Speedhound motor mount adapters (just got mine the other day)
Melrose C4 LSx swap headers
For the trans mount, do a search on solid rear conversions most use autos but the concept most have come up with is basically the same.
G.M.P.P. swap harness/ecm
Speedhound motor mount adapters (just got mine the other day)
Melrose C4 LSx swap headers
For the trans mount, do a search on solid rear conversions most use autos but the concept most have come up with is basically the same.
Nothing from the bottom end is salvageable. The heads are really the most important thing, and I think they will be OK. They have lots of bent valves (you can see marks on lots of pistons), but the chambers don't appear to have any damage.
Team Owner
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
It looked like at least one of the combustion chamers got smacked hard. But that can be fixed. Getting a shortblock would be the simplest and most cost effect way to get you back on the road.
Le Mans Master
Joined: Feb 1999
Posts: 9,938
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
They are just flesh wooouunnddsss
Seriously, get a new Golen shortblock? Then get your heads cleaned up.
LSx swaps are nice but if you are in a hurry, redo the LT4 stuff. 383/396 and maybe some new Dart heads (supposedly they flow VERY well) or AFR new stuff, Jesel Shaft mounts etc etc.
Seriously, get a new Golen shortblock? Then get your heads cleaned up.
LSx swaps are nice but if you are in a hurry, redo the LT4 stuff. 383/396 and maybe some new Dart heads (supposedly they flow VERY well) or AFR new stuff, Jesel Shaft mounts etc etc.
For those that are interested, here are some pics of the carnage from my LT4
LT4 Destruction 1
LT4 Destruction 2
It appears as though the failures started at the 5 and 6 rod bearings, and then spread from there. In total, there were 3 broken rods (I never found the rods for 5 and 6) and 11 holes in the oil pan. Lots of bent valves, but I'm holding out hope I can salvage the heads.
As much as I want to try an LS1 swap, I just don't think I can swing it right now. If there was a good, proven solution to the whole shifter/c-beam issue, then maybe, but I don't have the fab capability in my driveway.
LT4 Destruction 1
LT4 Destruction 2
It appears as though the failures started at the 5 and 6 rod bearings, and then spread from there. In total, there were 3 broken rods (I never found the rods for 5 and 6) and 11 holes in the oil pan. Lots of bent valves, but I'm holding out hope I can salvage the heads.
As much as I want to try an LS1 swap, I just don't think I can swing it right now. If there was a good, proven solution to the whole shifter/c-beam issue, then maybe, but I don't have the fab capability in my driveway.
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
They are just flesh wooouunnddsss
Seriously, get a new Golen shortblock? Then get your heads cleaned up.
LSx swaps are nice but if you are in a hurry, redo the LT4 stuff. 383/396 and maybe some new Dart heads (supposedly they flow VERY well) or AFR new stuff, Jesel Shaft mounts etc etc.
Seriously, get a new Golen shortblock? Then get your heads cleaned up.
LSx swaps are nice but if you are in a hurry, redo the LT4 stuff. 383/396 and maybe some new Dart heads (supposedly they flow VERY well) or AFR new stuff, Jesel Shaft mounts etc etc.
http://www.dartheads.com/products/sb...ro1-heads.html
The numbers there don't look all that great: only 180cc intake port, where as the LT4 are 195cc (LT1 is 175cc). The valve sizes are decent: 2.02 and 1.60, stock LT4 is 2.00 and 1.55, stock LT1 is 1.94 and 1.50.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
I found a deal on an unassembled, low mile LT1 for cheap; hopefully some fresh bearings and rings, and it will be ready to go.
Any flow numbers for the Dart heads?
http://www.dartheads.com/products/sb...ro1-heads.html
The numbers there don't look all that great: only 180cc intake port, where as the LT4 are 195cc (LT1 is 175cc). The valve sizes are decent: 2.02 and 1.60, stock LT4 is 2.00 and 1.55, stock LT1 is 1.94 and 1.50.
Any flow numbers for the Dart heads?
http://www.dartheads.com/products/sb...ro1-heads.html
The numbers there don't look all that great: only 180cc intake port, where as the LT4 are 195cc (LT1 is 175cc). The valve sizes are decent: 2.02 and 1.60, stock LT4 is 2.00 and 1.55, stock LT1 is 1.94 and 1.50.
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Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
From the Dart site.
257 intake
172 exhaust
Looks to be measured at .500.Cant find any umbers above .500 or below, Id be curious to see them.
Considering its a 180cc runner thats not too bad:with a little work Im sure they could really rock. Dont need giant numbers to make power on the street.
how much are the Dart heads?
257 intake
172 exhaust
Looks to be measured at .500.Cant find any umbers above .500 or below, Id be curious to see them.
Considering its a 180cc runner thats not too bad:with a little work Im sure they could really rock. Dont need giant numbers to make power on the street.
how much are the Dart heads?
Le Mans Master
Joined: Feb 1999
Posts: 9,938
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
I found a deal on an unassembled, low mile LT1 for cheap; hopefully some fresh bearings and rings, and it will be ready to go.
Any flow numbers for the Dart heads?
http://www.dartheads.com/products/sb...ro1-heads.html
The numbers there don't look all that great: only 180cc intake port, where as the LT4 are 195cc (LT1 is 175cc). The valve sizes are decent: 2.02 and 1.60, stock LT4 is 2.00 and 1.55, stock LT1 is 1.94 and 1.50.
Any flow numbers for the Dart heads?
http://www.dartheads.com/products/sb...ro1-heads.html
The numbers there don't look all that great: only 180cc intake port, where as the LT4 are 195cc (LT1 is 175cc). The valve sizes are decent: 2.02 and 1.60, stock LT4 is 2.00 and 1.55, stock LT1 is 1.94 and 1.50.
http://www.camaroz28.com/forums/showthread.php?t=546614
Melting Slicks
Joined: May 2007
Posts: 2,382
Likes: 2
From: Kathleen FL
If I were to ever think about an LS1 swap, I would also convert over to carb because wiring would be a PITA. As long as you have a mild cam and a well tuned carburetor, LS1s should be efficient enough to get decent gas mileage about equivalent to their mass fuel injected counterparts. And really there would not be much wiring at all. I bet that would greatly simplify the swap. And since you want to keep a stick shift, you could do pretty well on fuel economy. Yes, I'm ready with my FLAME SUIT on!!! 
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
If I were to ever think about an LS1 swap, I would also convert over to carb because wiring would be a PITA. As long as you have a mild cam and a well tuned carburetor, LS1s should be efficient enough to get decent gas mileage about equivalent to their mass fuel injected counterparts. And really there would not be much wiring at all. I bet that would greatly simplify the swap. And since you want to keep a stick shift, you could do pretty well on fuel economy. Yes, I'm ready with my FLAME SUIT on!!!
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Bolting on an aftermarket head is good, but taking one and then working it further in most cases is even better. Others dont respond quite as well.
stuff.
Team Owner
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
The Z28 guys aer getting real excited over here. Bret "SStrokerAce" and some other guys who are heavy hitters are really lookiing forward to these heads.
http://www.camaroz28.com/forums/showthread.php?t=546614
http://www.camaroz28.com/forums/showthread.php?t=546614
Looks like they flow just about as well as the LE1 heads right out of the box with smaller ports @.500" lift
Le Mans Master
Joined: Feb 1999
Posts: 9,938
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
I remember Phil Tobins car making 475rwhp with a 401 and big cam, high compression and seriously worked over AFR 220's?
Now we have heads with a proven track record, thrown into our mold allowing us to get more competitive with the LSx crowd. IMHO
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
Here is a pic of the oil pan for those who are interested:
This was the 'bad' side. There are at least 2 holes on the bottom part of the pan, in front of the sump, as well as more dents and holes on the other side.
After exchanging some emails with Lloyd Elliot of EPortWorks, I think I'm going to fix and port my LT4 heads. My hp goal is a modest 400 RWHP (can't afford to make any more), and my heads with some work and a good cam should make that without too much trouble.
This was the 'bad' side. There are at least 2 holes on the bottom part of the pan, in front of the sump, as well as more dents and holes on the other side.
After exchanging some emails with Lloyd Elliot of EPortWorks, I think I'm going to fix and port my LT4 heads. My hp goal is a modest 400 RWHP (can't afford to make any more), and my heads with some work and a good cam should make that without too much trouble.
Former Vendor
Joined: Jan 2006
Posts: 698
Likes: 0
From: Social Circle Georgia
Sounds like a good plan to me Chad. I also think you should clean the oil pan and then hang it on the wall in the garage. Write a date on it too. Maybe do the same with the small chunks. Just put them in a clear glass jar or container.
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
I have already cleaned it up so it can be saved. I still haven't pulled all of the chunks out of it yet, but the ones I have removed are in a box.
