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Chevy 496 CI Big Block Marine

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Chevy 496 CI Big Block Marine 520HP 595FT/LBS TQ

Block
4 bolt block bored and honed with deck plates
Gen IV 2pc seal
Premium core. No repairs. No sleeves

Cylinder Heads
World heads 320cc int 2.300 1.88
3 angle competition valve job
ARP Head bolts

Valve Train
Comp Cam 234/244 564/566 112 Hyd (needs performance exhaust)
Hardened locks and retainers
2.30 Int / 1.88 Exh stainless valves
HP Springs 1.540 OD
Comp hydraulic lifters
Cloyes True Double Roller timing chain
Scorpion Aluminum Roller Rockers
7/16 Hardened studs and guide plates
Manley Hardened Push Rods

Rotating Assembly
SRP Forged Pistons 10.1:1 CR
Eagle I beam rods w/ ARP bolts
Eagle Cast Steel Crank
Balanced rotating assembly within 1 Gram
Speed Pro File Fit Moly Rings
External Balance

Intake and Tinware
World Marine Intake w/4150 base
Professional Products 8" Balancer
Deep Sump Pan
Chrome Tall Valve covers
OE timing cover
New OE Style Flywheel

Dyno testing at an additional fee

No Core Return Required

Crate Engine Cost: $8,199

Turn Key Engine Cost: $10,199


Disclaimer

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.
 

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