heres some info I found, heads:
NEW G.M. #14097088 454-502 Cast Iron Big Block Chevy, Rectangular port, Choice of 2.19 x 1.88 or 2.250X1.88 Stainless Valves, 118cc Open Chamber Design, .550” Lift Springs, Rectangular Intake Port Design, Can Be Used on Early , Gen V, and Gen VI Design Blocks, Machined For Screw In Studs & Guide Plates, Include Hard Exhaust Seats
block:
This Gen VI cast iron block is a strong foundation for a big-block engine project. The "short-deck" block was designed to meet the needs of a powerful and dependable 500cid engine for street or boat usage. The block's cylinder walls are "siamesed" and are bored to 4.47". The deck surfaces are reinforced to improve the head gasket sealing. Four-bolt main bearing caps are installed to reinforce cylinder barrels and add strength to the bottom end.
Technical Notes: The distance from the crankshaft centerline to the deck surfaces is 9.80". It is used on 502 engines assembly, and partial engine. and can use roller tappet or stndard tappet. Casting P/N 10237300. Maximum over bore is 4.500".
hope that helps
__________________
Chris
As close to "Normal" as I can get...
