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MERLIN WORLD CLASS
BIG BLOCK CHEVROLET
COMPLETE STREET ENGINES
There’s nothing quite as “in-your-face” as a big-inch “rat” motor. With a much larger displacement than any factory big block Chevrolet offering, World’s 509 and 540 cubic inch Merlin powerplants give you ground-pounding horsepower and torque at a moderate price.
ALUMINUM BLOCK OPTIONAL
| World Class Big Block Chevrolet Street Engines |
| Part # |
C.I.D. |
HP |
Torque |
Block |
Heads |
| 108000 |
509 |
540 |
575 Ft. Lbs. |
Merlin III Cast Iron |
Merlin 345 Cast Iron |
| 108001 |
509 |
560 |
585 Ft. Lbs. |
Merlin III Cast Iron |
Merlin III 350 Aluminum |
| 108001A |
509 |
560 |
585 Ft. Lbs. |
Merlin X Aluminum |
Merlin III 350 Aluminum |
| 108050 |
540 |
580 |
595 Ft. Lbs. |
Merlin III Cast Iron |
Merlin 345 Cast Iron |
| 108051 |
540 |
600 |
605 Ft. Lbs. |
Merlin III Cast Iron |
Merlin III 350 Aluminum |
| 108051A |
540 |
600 |
605 Ft. Lbs. |
Merlin X Aluminum |
Merlin III 350 Aluminum |
Build Sheet of...
Merlin World Class Street Engines
Block: Merlin III cast iron, Merlin X aluminum
Crankshaft: Eagle 4340 forged crankshaft
Balancer: ProStreet internal
Connecting Rods: Eagle H-beam 4340 L-19 bolts
Pistons: Mahle coated/Manley
Piston Rings: Total Seal
Compression: 9.5:1
Bore/Stroke: 509 c.i.d. = 4.500" x 4.000", 540 c.i.d. = 4.500" x 4.250"
Bearings: Clevite H-bearings
Camshaft: Hardcore hydraulic
Timing Chain: Hardcore double roller
Cylinder Heads: World Merlin (cast iron or aluminum)
Valves: Manley Stainless (2.300" intake, 1.880" exhaust)
Valve Springs: Hardcore
Retainers: Manley
Valve Locks: Manley
Valve Seals: Hardcore
Rocker Arm Studs: Hardcore
Pushrods: Hardcore 1 pc., .080" wall
Pushrod Guide Plates: Hardcore
Rocker Arms: Scorpion aluminum rollers
Oil Pan: Moroso
Oil Pump: Melling
Assembly Components: Stainless hardware
Intake Manifold: Merlin single plane
Carburetor: Hardcore 870 cfm (4150 type)
Distributor: MSD
Fuel: Pump gas
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