lt1-427
10-05-2011, 10:39 PM
#22
A lot of places can sleeve a block, and its been done before. There are just better ways to spend your money.
If you are planning on building a 400+ CI LT, then you better have some deep pockets to afford a valvetrain and badass heads to let it breathe.
If you are planning on building a 400+ CI LT, then you better have some deep pockets to afford a valvetrain and badass heads to let it breathe.
10-05-2011, 11:01 PM
#23
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Whatever happened to those LTX GM performance blocks that got auctioned off on ebay? I remember seeing a thread about atleast one being sold for like 10 grand.
Anyone know whatever came of it?
Anyone know whatever came of it?
10-06-2011, 02:49 PM
#24
Somebody needs to make a
454 LT1! Last edited by ahritchie; 10-06-2011 at 03:57 PM.
10-06-2011, 04:37 PM
#25
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it can be done but the ring pkg would not be pretty. 4.06 bore and a 4.10 stroke would give you 425". realistically i would not go any less than a 1" compression height.
Last edited by BIGCAT7274; 10-06-2011 at 09:36 PM.
10-06-2011, 06:27 PM
#26
What is the deckheight on the bowtie? It must be taller than stock. Well I would hope it would be anyway.
I was nagging Dart for a while to build it since they teased us with their idea of producing their own LT1 bigblock.
10-06-2011, 06:51 PM
#28
I have a 414" LT1. 4.060" bore with a 4" stroke. This is the piston used:
http://www.summitracing.com/parts/MLE-SBC000060F05/
1" compression height.
The bottom of the block is not clearanced any more than a typical 383. The way the shop accomplished this is with a particular I-beam rod. A Scat pro-comp. It offers way more room than a big H-beam. I honestly don't know if a 4.1" stroke crank would fit. I'm 100% positive that it would not hit the block. My block has more than .1" of room as the crank swings, BUT I think there would be issues with the rods smacking the camshaft. I run a .900" base circle, and it's pretty close. If the clearance between the rods and camshaft are tight bad things will happen if you start to get a little flex in the cam. I don't know of anyone that has put a 4.1" stroke crank into an LT1 or an SBC with standard cam location. If someone has heard of one please post the link.
http://www.summitracing.com/parts/MLE-SBC000060F05/
1" compression height.
The bottom of the block is not clearanced any more than a typical 383. The way the shop accomplished this is with a particular I-beam rod. A Scat pro-comp. It offers way more room than a big H-beam. I honestly don't know if a 4.1" stroke crank would fit. I'm 100% positive that it would not hit the block. My block has more than .1" of room as the crank swings, BUT I think there would be issues with the rods smacking the camshaft. I run a .900" base circle, and it's pretty close. If the clearance between the rods and camshaft are tight bad things will happen if you start to get a little flex in the cam. I don't know of anyone that has put a 4.1" stroke crank into an LT1 or an SBC with standard cam location. If someone has heard of one please post the link.
10-08-2011, 06:46 AM
#31
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10-08-2011, 09:26 AM
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10-08-2011, 08:32 PM
#38
there is a nice Ellwein build he did as a 399. Used some parts I haven't seen used before, especially the crank (callies magnum XL with 1.88 journals and a BBC nose?) Look at the clearance he attributes to the 1.88 journals.
sorry for the big pics, they are linked to Ellwein site.
sorry for the big pics, they are linked to Ellwein site.
