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LS-2 engine question

Old May 7, 2006 | 03:46 PM
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Chevy advertises that the LS-7 has 6 bolt main bearings but I've not seen any mention of that spec for the LS-2. Does anyone know how many bolts are used to secure the main bearing caps on the LS-2?
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Old May 7, 2006 | 04:05 PM
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Don't quote me on this one, but if I recall correctly, the LS2 has 4 bolt mains.
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Old May 7, 2006 | 04:25 PM
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Well don't quote me either, but I believe the LS1, LS6, and LS2 all have 6 bolt (cross bolted) mains as well. There are 4 bolts in the bottom of each main bearing cap similar to 4 bolt mains and 2 horizontal bolts (1 on each side) i.e. "cross bolted mains" .
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Old May 7, 2006 | 04:30 PM
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Originally Posted by need-for-speed
Well don't quote me either, but I believe the LS1, LS6, and LS2 all have 6 bolt (cross bolted) mains as well. There are 4 bolts in the bottom of each main bearing cap similar to 4 bolt mains and 2 horizontal bolts (1 on each side) i.e. "cross bolted mains" .
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Old May 7, 2006 | 04:38 PM
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Thanks to those who replied. I assumed they'd be 4 bolt mains because of the way Chevy bragged on the 6 bolt mains in the LS-7 as if it were unique.
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Old May 7, 2006 | 07:06 PM
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I found this.........

At a Glance: 2005 LS2

Engine type OHV V-8; aluminum block and heads; 6-bolt main bearings Displacement 364 cu in / 6.0 liter Bore 4.00 in / 101.6 mm Stroke 3.62 in / 92 mm Compression ratio 10.9:1 Fuel delivery Returnless, sequential port fuel injection Redline 6500 rpm Horsepower 400 @ 5200 rpm Torque (lb. ft.) 395 @ 4000 rpm
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Old May 8, 2006 | 02:28 AM
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Originally Posted by timd38
I found this.........
At a Glance: 2005 LS2
Engine type OHV V-8; aluminum block and heads; 6-bolt main bearings Displacement 364 cu in / 6.0 liter Bore 4.00 in / 101.6 mm Stroke 3.62 in / 92 mm Compression ratio 10.9:1 Fuel delivery Returnless, sequential port fuel injection Redline 6500 rpm Horsepower 400 @ 5200 rpm Torque (lb. ft.) 395 @ 4000 rpm
I think that's some preproduction/early info (or maybe it's the GTO's specs?), the torque rating for the C6 is 400 now.
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Old May 8, 2006 | 07:58 PM
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Originally Posted by Velocity Steve
Chevy advertises that the LS-7 has 6 bolt main bearings but I've not seen any mention of that spec for the LS-2. Does anyone know how many bolts are used to secure the main bearing caps on the LS-2?
The LS2 (VIN 2) crankshaft bearing caps each have 4 vertical M10 and 2 horizontal M8 mounting bolts.
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Old May 11, 2006 | 04:36 PM
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Wow! 6 bolt mains. Thanks to all who answered.
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