Here’s an interesting engine package that’s perfect for many street rods and street machines. With 509 cubic inches, it’s got plenty of torque, and yet with a hydraulic roller (or hydraulic flat tappet) cam and 9.5:1 compression, it’s a low maintenance combination that’s designed for optimum reliability. Of course, with 590 dyno tested horsepower for the hydraulic roller cammed models, there’s an abundance of performance. The engine features a World Products MERLIN III cast iron block and MERLIN III aluminum heads, 4340 forged steel crank and H beam connecting rods, forged aluminum pistons and all the good stuff!

BUY NOW!
It is easier than ever to buy a World Products’ Engine or Short Block!

We have put together a team of Engine Builders to build our engines at locations all across the country. All of these Engine Builders have access to our Bills of Material, Dyno Sheets, Technical Info, Parts Numbers & more. They are all qualified to build any of our winning combinations. You can now deal directly with the Engine Builders of your choice about custom options, specific parts & shipping to get the best deal. Simply choose an Engine or Short Block from our website, give the part # to one of our Engine Builders and soon you will have a World Products Engine in your Car, Truck or Boat!

OR YOU CAN...

Engine Block: Merlin III cast iron, Merlin X aluminum
Deck Height: 9.800”
Bore/Stroke: 4.500” x 4.000”
Main Caps: 4-bolt nodular splayed
Cylinder Heads: Merlin Rectangular Port 320cc cast iron, Merlin III 310cc aluminum
Valves: Manley stainless steel
Intake Manifold: Merlin
Carburetor: AED (custom spec)
Distributor: MSD E-Curve
Timing Chain: Double roller
Crankshaft: 4340 Eagle/Scat internally balanced
Connecting Rods: 4340 Eagle/Scat
Pistons: Manley/Mahle
Gaskets: Felpro
Internal Hardware: ARP
Exterior Hardware: Totally Stainless
Oil Pan: Moroso
Warranty: 2 years/24,000 miles


Compression Ratio 9.5:1

Engine #107000 MERLIN BBC 454 / 454HP Street Engine, Iron heads , Hydraulic cam, 4150 carb
$10.812.99 Suggested Retail Price.

Engine #107050 MERLIN BBC 509 / 525HP Street Engine, Iron heads , Hydraulic cam, 4150 carb
$10,545.99 Suggested Retail Price.

Engine #108000 MERLIN BBC 509 / 540HP Street Engine, Iron heads , Hydraulic cam, 4150 carb
$11,172.99 Suggested Retail Price.
IN STOCK NOW AT: Comp Products
CALL: 800-233-0199
IN STOCK NOW AT: Keystone Automotive
CALL: 866-353-9786

Engine #108001 MERLIN BBC 509 / 560HP Street Engine, Aluminum heads , Hydraulic cam, 4150 carb
$12,122.99 Suggested Retail Price.

Engine #108001A MERLIN BBC 509 / 560HP Street Engine, All Aluminum , Hydraulic cam, 4150 carb
$14,122.99 Suggested Retail Price.

Engine #130232 MERLIN BBC 509 / 590HP 9.800 Deck, Street Engine, Aluminum heads , Hydraulic roller cam, 4150 carb
$13,153.99 Suggested Retail Price.

Engine #130338 MERLIN BBC 509 / 590HP 10.200 Deck, Street Engine, Aluminum heads , Hydraulic roller cam, EFI
$18,569.99 Suggested Retail Price.