New Engine Recommendations
Thread Starter
Racer
Joined: Nov 2015
Posts: 408
Likes: 5
From: New York
New Engine Recommendations
I cracked my ls6 block last night putting my new head bolts in and now I am looking for a replacement. I have a D1SC procharger with a comp cams blower cam and my ls6 heads. I would like to use everything I currently have except the block and the internals. Thinking of getting a forged assembled small block. What stroke would work good with a D1SC?
Safety Car
Joined: Mar 2016
Posts: 3,534
Likes: 432
From: Atlantic Beach FL.
There are several options depending on what your goals are.
If you are using your stock top end then you could go with a forged 383 stroker LS1/6 short block.
Going with a LS2 with a forged stroker rotating assembly allows you to use the later top end with larger valves and rectangular ports.
If you are using your stock top end then you could go with a forged 383 stroker LS1/6 short block.
Going with a LS2 with a forged stroker rotating assembly allows you to use the later top end with larger valves and rectangular ports.
Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
I would stay with what you know best LS6 block with 4 inch stroke. You don't want anymore problems.
Yea anytime you change the heads it's very critical to make sure the bolts holes are clean and dry. Before torqued down.
Yea anytime you change the heads it's very critical to make sure the bolts holes are clean and dry. Before torqued down.
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Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
I know GM does not make the LS1/LS6 blocks anymore, you might have to start looking on Ebay, craigslist or junkyards to get one used. They need to be inspected by a reputable machinest or engine builder.
I have a D1SC about 8lbs of boost on a 2002 A4 with an LS6 block. The previous owner said they had it just over 900hp at motor with a different pulley. My car has ported stage III patriot 243 heads blower cam and 3.42 gears. Very fun to drive.
The 900 hp was with the first generation procharger setup bracket. The belt snapped off and tore the under hood lining.
I have a D1SC about 8lbs of boost on a 2002 A4 with an LS6 block. The previous owner said they had it just over 900hp at motor with a different pulley. My car has ported stage III patriot 243 heads blower cam and 3.42 gears. Very fun to drive.
The 900 hp was with the first generation procharger setup bracket. The belt snapped off and tore the under hood lining.
Last edited by corvet786c; Jun 22, 2017 at 02:20 PM.
Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
Because the same thing happen to me, when I got an breather oil temps went down as well.
Last edited by corvet786c; Jun 22, 2017 at 02:24 PM.
Safety Car
Joined: Mar 2016
Posts: 3,534
Likes: 432
From: Atlantic Beach FL.
There is somewhat of a scarcity of LS1/6 blocks as they went out of production after the gen 4 engines came out.
As far as fitment goes there is plenty of information on the web.
https://ls1tech.com/forums/generatio...questions.html
As far as fitment goes there is plenty of information on the web.
https://ls1tech.com/forums/generatio...questions.html
Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
Here, just found one for you on Ebay LS6 block.
http://www.ebay.com/itm/Ls6-Engine-B...5ZSFZq&vxp=mtr
http://www.ebay.com/itm/Ls6-Engine-B...5ZSFZq&vxp=mtr
Safety Car
Joined: Mar 2016
Posts: 3,534
Likes: 432
From: Atlantic Beach FL.
Here, just found one for you on Ebay LS6 block.
http://www.ebay.com/itm/Ls6-Engine-B...5ZSFZq&vxp=mtr
http://www.ebay.com/itm/Ls6-Engine-B...5ZSFZq&vxp=mtr
It is listed as pick up only but the block only weighs around 85Lbs. It would be nice if he could ship it.
Last edited by Rob 02; Jun 22, 2017 at 02:40 PM.
Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
Yea I would try to talk with the owner to see what kind of arraignments he can make with shipping costs. Or to just take a ride there.
Safety Car
Joined: Mar 2016
Posts: 3,534
Likes: 432
From: Atlantic Beach FL.
If he could bolt ply-wood over the mounting surfaces for protection and screw some handles to it then it could probably be shipped Fed Ex.
I carried my block into the machine shop and I am not a big guy.
I carried my block into the machine shop and I am not a big guy.
Thread Starter
Racer
Joined: Nov 2015
Posts: 408
Likes: 5
From: New York
Yeah thanks i will def reach out to him. It would be worth it if I got a good price because then I would have to buy a rotating assembly for a couple grand and who knows how much for machine shop to balance and install it.
Safety Car
Joined: Mar 2016
Posts: 3,534
Likes: 432
From: Atlantic Beach FL.
The machine shop probably gets a better deal than you do on engine internals. Let them deal with that mess.
Machine shops are generally inexpensive. It is when you go through a mechanic shop first that things get expensive. They end up sending it to a machine shop then charging you double.
Machine shops are generally inexpensive. It is when you go through a mechanic shop first that things get expensive. They end up sending it to a machine shop then charging you double.
Melting Slicks
Joined: Sep 2007
Posts: 2,134
Likes: 139
From: Port St Lucie Florida
https://www.texas-speed.com/p-787-ts...-assembly.aspx
Give these guys a call and tell them what you need. My motor was build by texas speed all stroked. They can work with you and help you out.
Give these guys a call and tell them what you need. My motor was build by texas speed all stroked. They can work with you and help you out.