Here's a link I found. This is for a stock GM Crate motor. :
http://www.jegs.com/p/Chevrolet-Perf...52506/10002/-1
Specifications •4-bolt main with 2-piece rear main seal
•Nodular iron crankshaft
•4.000" bore x 3.480" stroke
•Internal balance
•LT1/LT4 powdered metal connecting rods
•Cast aluminum pistons (dished)
•8.5:1 compression ratio
•Hydraulic flat tappet cam (.383"/.401" Lift, 194 / 202 Duration @ .050", and 112° lobe separation)
•Cast iron cylinder heads with 76cc chambers
•1.940" Intake / 1.500" Exhaust valves
•1.250" diameter valve springs
•1.5:1 ratio rocker arms
•3/8" pressed-in rocker studs
•Block is compatible with left or right side oil dipstick (Requires Plug for Unused Side - sold separately) - p/n 809-14091563 left side plug; or p/n 809-9421743 right side plug
•4-quart oil pan
•Oil pump, oil pump pickup and oil pump drive shaft installed
•Includes timing tabs for a 6-3/4" or an 8" balancer (balancer not included)
•Recommended spark plug: 14mm thread, .460" reach, 5/8" hex, tapered seat, projected tip (AC Delco p/n 065-R45TS, Autolite p/n 417-144)
•Requires p/n 809-19299222 or p/n 555-23605 Oil filter adapter (not included)
Hope this helps.
If this is the motor you have, it's a great foundation to start with.