Chevy 496 CI Big Block

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Chevy 496 CI Big Block 590HP 615FT/LBS TQ Block 4 bolt block bored and honed with deck plates gen IV 2 pc seal Premium core.  No repairs. No sleeves   Cylinder Heads Pro Comp Aluminum Rectangular Port 320cc 115cc chambers  w/ ARP head bolts Hardened locks and retainers 2.25 Int / 1.88 Exh stainless valves HP Springs 1.540 OD 3 angle competition valve job Fel Pro Performance head gaskets   Valve Train Crane Cam   236/246 553/571 109 hydraulic flat HP hydraulic lifters Cloyes True Double Roller timing chain Scorpion Aluminum Roller Rockers 7/16 Hardened studs and guide plates Manley Hardened Push Rods Roller Thrust button for cam   Rotating Assembly Keith Black Forged Pistons 10.5:1 Eagle Forged H beam rods w/ ARP bolts 4340 Forged Steel Crankshaft Balanced rotating assembly within 1 Gram Speed Pro File Fit Moly Rings Internally Balanced   Intake and Tinware Professional Products Hurricane single plane intake Manifold Professional Products 8" Balancer OE Extra Clearance Pan for all chassis Chrome Tall Valve covers OE timing cover OE internal Balance Flex plate Assembled with all grade 8 hardware.   Dyno testing at an additional fee No Core Return Required Crate Engine Cost: $7,999 Turn Key Engine Cost: $9,999

Promar Reserves the right to change manufacturers and specs without notice. HP and TQ ratings are based on actual results on a engine dyno with open headers in controlled environment tuned for maximum performance.