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Engine Blocks > ►BBC Blocks > World Products MERLIN III 9.800" Deck Iron Engine Block
World Products MERLIN III 9.800" Deck Iron Engine Block
►BBC Blocks

For product assistance, please call (386) 279-3171 .

FREE SHIPPING & HANDLING WITH EVERY WORLD PRODUCTS BLOCK PURCHASE

Now in its third iteration, World’s continually upgraded MERLIN cast iron block is the perfect foundation for any big block Chevrolet engine assembly. Made of a high density iron and manufactured to QS-9000 specifications on just two fixtures to eliminate tolerance stacking common on production lines, the MERLIN III can be bored to a maximum of 4.625” and is clearanced for a 4.375” crank. With a reinforced bottom end featuring 4-bolt splayed main caps, the MERLIN III can handle serious horsepower with complete reliability. It’s an excellent all-around value too!


TECHNICAL SPECS

Material: High Density Cast Iron
Deck Height: Standard 9.800"
Deck Thickness: .600" minimum
Cam Bearings: Standard Chevrolet
Main Bearings: Standard Chevrolet
Camshaft Location: Stock
Lifter Bores: Indexed (stock .8437" bore)
Bore: 4.240 (hone to 4.250") or 4.490 (hone to 4.500")
Maximum Bore: 4.600"
Cylinder Wall Thickness: .250" at 4.600" bore
Water Jackets: Expanded for better cooling
Lubrication: Priority main oiling system
Filtration: Integral mount for spin-on filter
Oil Pan Rails: Solid (stock width)
Crank Clearance: 4.375" stroke
Main Caps: 4-bolts splayed, nodular iron or billet steel
Fuel Pump: OEM mount
Starter: OEM mount
Motor Mounts: Dual (front and side)
Cylinder Head Holes: Blind tapped to prevent leaks
Weight: Approximately 270 lbs.

World Products MERLIN III 9.800" Deck Iron Engine Block
World Products MERLIN III 9.800" Deck Iron Engine Block World Products MERLIN III 9.800" Deck Iron Engine Block
 
product info
 
product variations
 
081100 MERLIN III Bare Block, 9.800" Deck, 4.245" Bore, Standard Cam Location, Nodular Iron Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,226.43
Quantity 
 
 
 
081101 MERLIN III Bare Block, 9.800" Deck, 4.495" Bore, Standard Cam Location, Nodular Iron Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,296.96
Quantity 
 
 
 
081101-55 MERLIN III Bare Block, 9.800" Deck, 4.495" Bore, Std. Cam Location, 55mm Babbit cam, .904" lifters, Nodular Iron Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !
$2,599.99
Quantity 
 
 
 
081102 MERLIN III Bare Block, 9.800" Deck, 4.590" Bore, Standard Cam Location, Nodular Iron Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,296.96
Quantity 
 
 
 
081102-55 MERLIN III Bare Block, 9.800" Deck, 4.595" Bore, Std. Cam Location, 55mm Babbit cam, .904" lifters, Nodular Iron Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,599.99
Quantity 
 
 
 
081103 MERLIN III Bare Block, 9.800" Deck, 4.245" Bore, Standard Cam Location, Nodular Iron Splayed Caps, 1 Piece Seal, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,226.43
Quantity 
 
 
 
081105 MERLIN III Bare Block, 9.800" Deck, 4.495" Bore, Standard Cam Location, Nodular Iron Splayed Caps, 1 Piece Seal, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,296.96
Quantity 
 
 
 
081106 MERLIN III Bare Block, 9.800" Deck, 4.595" Bore, Standard Cam Location, Nodular Iron Splayed Caps, 1 Piece Seal, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,296.96
Quantity 
 
 
 
085000 MERLIN III Bare Block, 9.800" Deck, 4.240" Bore, Standard Cam Location, Steel Billet Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,643.14
Quantity 
 
 
 
085010 MERLIN III Bare Block, 9.800" Deck, 4.490" Bore, Standard Cam Location, Steel Billet Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,777.31
Quantity 
 
 
 
085010-55 MERLIN III Bare Block, 9.800" Deck, 4.495" Bore, Std. Cam Location, 55mm Babbit cam, .904" lifters, Billet Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$3,092.98
Quantity 
 
 
 
085012 MERLIN III Bare Block, 9.800" Deck, 4.590" Bore, Standard Cam Location, Steel Billet Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$2,777.31
Quantity 
 
 
 
085012-55 MERLIN III Bare Block, 9.800" Deck, 4.595" Bore, Std. Cam Location, 55mm Babbit cam, .904" lifters, Billet Splayed Caps, TO PURCHASE: Please "click" the small box to the right of the "BUY NOW" button first.
FREE SHPPING & HANDLING INCLUDED !!
$3,092.98
Quantity