CRATE ENGINE, GM BIG BLOCK -496ci W/ IRON HEADS -480HP

Crate Motor GM 496 - Iron Heads
Block:
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

Rotating Assembly:
New SCAT cast steel crankshaft externally balanced, 4.250 stroke
New SCAT 4340 forged connecting rods
150,000 psi rod bolts
Keith Black Hyperuetectic flat top Pistons
Hastings moly rings
Rotating assembly balanced to within 2 grams
Melling high volume oil pump
Flat tappet hydraulic lifter .552 intake lift, .555 exhaust lift
230 intake, 236 exhaust duration @ .050, 110 degrees lobe separation
Heavy duty double roller (high performance) timing set

Cylinder Heads:
GM cast iron oval port heads with screw-in studs and guide plates, 113cc chambers
1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
polished intake valves, 1.88 swirl polished exhaust valves
Elgin hardened push rods
Long slot rockers with postitive lock adjusting nuts


A Ton Of Extras:
Edelbrock performer RPM airgap intake manifold
9.0 to 1 compression
Chrome valve covers
Milodon cad plated oil pan
Brass freeze plugs
All engines are dyno tested on state-of-the-art DTS dyno and come with
a complete dyno sheet
30 month 50,000 mile warranty
Professional Products harmonic balancer

Critical Specs:
Camshaft:
.552 Int / .555 Exh & 230 Int / 236 Exh duration @ .050 110 degree lobe seperation

Horsepower:
480

Torque:
550

Compression Ratio:
9.0 to 1

Ignition Timing:
13 to 16 Degree Initial / 34 Degree Total

This part fits most Chevrolet Cars and Trucks. Exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application.