And more from some LS1 website, keep in mind, the LS1 is metric actually, and they are probably doing the math by 5.7l to CI, which isn't exactly correct, as the 5.7l designation is as much marketing as anything, but anyway, here you go, add it up and tell the Fbody guy's to learn to count :hammer:
General Specifications
Displacement 5.7L (5665cc, 346ci) Gross Horsepower 310 @ 5200 RPM, 320 @ 5800 RPM
Bore/Stroke 3.90/3.62 Gross Torque 340 @ 4000 RPM, 330 @ 4400 RPM
Compression Ratio
10.1:1 Maximum RPM
6200
Firing Order
1-8-7-2-6-5-4-3 Out of crate weight.
Approximately 390 lbs.
Spark Plug
ACDelco 12
ACDelco 41-985 Spark Plug Gap
.060â€Â, 1.524 mm
Block Specifications
Block Material
319-T5 Aluminum Block Description
90° V, Deep skirt with cast-in iron sleeves.
Bore Spacing
4.40†Deck Height
9.24â€Â
Main Bearings
5 Thurst Bearing
Center Bulkhead
Bearing Caps
4 vertical bolts, 2 cross bolts
Cylinder Head Specifications
Material
356-T6 Aluminum Description
Cross flow, wedge combustion chamber.
Ports
Symmetrical, intake and exhaust Chamber Volume
67.3 cc
Head Gasket
0.052†compressed
Crankshaft Specifications
Material
Cast Nodular Iron Features
Undercut and rolled fillets.
Crank Pin Diameter
2.10†Main Bearing Diameter
2.56â€Â
Piston Specifications
Material
Cast Aluminum Description
Strutless, flat top.
Compression Ht.
1.34†Weight
15.5 oz.
Induction System
Manifold
One-piece composite. Throttle Body
75.0 mm bore dia.