The 572 c.i.d. MERLIN is one of the most popular engines in the entire World Products lineup. And itβs easy to see why. Most performance enthusiasts who seek serious horsepower appreciate the benefits of a 572 engine. And when they compare what they get in a MERLIN as opposed to the factory crate motor of the same displacement, World wins hands down! Consider that World Products and GM are similar as they are manufacturers that produce their own blocks, cylinder heads, and intake manifolds. But there the big difference lies is that World sources its internal components from the aftermarket and the OEMs use many stock parts. The bottom line is that World engines contain premium grade components from the likes of ARP, Clevite, Eagle, Fel-Pro, Mahle, Manley, Moroso and MSD. Each MERLIN is assembled by experienced, professional engine builders, carefully broken in, and dyno tested.
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...
TECHNICAL SPECS
Engine Block: Merlin III cast iron, Merlin X aluminum
Deck Height: 10.200β
Bore/Stroke: 4.500β x 4.500β
Main Caps: 4-bolt nodular splayed
Cylinder Heads: Merlin III 345cc 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 year/24,000 miles (street only)
Compression Ratios
Street Engines: 10.8:1
Race Engine: 13.7:1
STREET ENGINES
Engine #108055 MERLIN BBC 572 / 675HP Street Engine, Iron heads, Solid flat tappet cam, Dominator carb
$12,542.99 Suggested Retail Price.

Engine #108056 MERLIN BBC 572 / 700HP Street Engine, Aluminum heads, Solid flat tappet cam, Dominator carb
$13,492.99 Suggested Retail Price.
IN STOCK NOW AT: Comp Products
CALL: 800-233-0199
IN STOCK NOW AT: Keystone Automotive
CALL: 866-353-9786

Engine #108056A MERLIN BBC 572 / 700HP Street Engine, All Aluminum, Solid flat tappet cam, Dominator carb
$15,492.99 Suggested Retail Price.

Engine #130236 MERLIN BBC 572 / 735HP Street Engine, Aluminum heads, Hydraulic roller cam, 4500 carb
$14,511.99 Suggested Retail Price.

DRAG ENGINES
Engine #108086 MERLIN BBC 572 / 850HP Drag Engine, Aluminum heads, Solid roller cam, Dominator carb
$15,676.99 Suggested Retail Price.

Engine #108086A MERLIN BBC 572 / 850HP Drag Engine, All Aluminum, Solid roller cam, Dominator carb
$17,676.99 Suggested Retail Price.

632s...
Engine #108061 MERLIN BBC 632 / 800HP Street Engine, Aluminum heads, Solid roller cam, Dominator carb
$17,006.99 Suggested Retail Price.

Engine #108061A MERLIN BBC 632 / 800HP Street Engine, All Aluminum, Solid roller cam, Dominator carb
$19,006.99 Suggested Retail Price.

Engine #130238 MERLIN BBC 632 / 800HP Street Engine, Aluminum heads, Hydraulic roller cam, 4500 carb
$17,065.99 Suggested Retail Price.

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