Chevy 468 CI Big Block Marine

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Chevy 468 CI Big Block Marine 400HP 500FT/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 OE Large Oval Port heads 3 angle competition valve job New Head Bolts   Valve Train Comp Cam   224/224   510/510  114 ( needs performance exhaust) Comp hydraulic lifters Hardened locks and retainers 2.19 Int / 1.88 Exh stainless valves Comp Springs 1.540 OD Cloyes True Double Roller timing chain Comp Roller Tip Rockers 7/16 Hardened studs and guide plates Manley Hardened Push Rods   Rotating Assembly Speed Pro Hypereutectic Coated pistons 9.5:1 CR Eagle I beam Rods w/ ARP bolts Eagle cast Steel Crank Balanced rotating assembly within 1 Gram Speed Pro Moly Rings External Balance   Intake and Tinware Professional Products Crosswind Air Gap manifold Professional Products 8" Balancer 6 qt deep sump pan Chrome Tall Valve covers OE timing cover New Flywheel Assembled with all grade 8 hardware.   Dyno testing at an additional fee No Core Return Required Crate Engine Cost: $5,499 Turn Key Engine Cost: $7,199

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.