GM 496 Engine Specs (BP4963CTC)

480 HP/550 ft/lbs
$5,495

• 4 Bolt Main .060 over block
• Two piece rear seal, drivers side dipstick
• Square and parallel decked
• Align honed main bearing bore
• Cylinders honed on computer controlled machine to within .0002
• straightness and roundness
• Cylinders are sonic tested for thickness

• New cast steel crankshaft
• GM connecting rods
• 150,000 psi rod bolts
• Hypereutectic Pistons
• Moly rings
• Rotating assembly balanced to within 2 grams
• High volume oil pump
• Flat tappet hydraulic cam
• Double roller  timing set

• GM cast iron oval port heads
• 120 cc chambers
• Hardened retainers & keepers
• 2.25 swirl polished intake valves
• 1.88 swirl polished exhaust valves
• Hardened push rods
• Long slot rockers

• Aluminum intake manifold
• 9 to 1 compression
• New valve covers, oil pan and timing cover
• Brass freeze plugs
• All engines are dyno tested on state-of-the-art DTS dyno and come with
• a complete dyno sheet
• Distributor
• 800 CFM carburetor

.556 Intake / .556 Exhaust & 236 Intake / 236 Exhaust duration @ .050 - 110 degree lobe separation