The Merlin block has earned a reputation for providing reliable big-inch power, and this 3rd edition has been refined from design, manufacturing and quality control standpoints. To ensure total customer satisfaction every block is subje cted to stringent quality control standards. The Merlin III can be bored to a maximum of 4.625 and is clearanced for a 4.750� crank. With a reinforced bottom end featuring 4-bolt splayed main caps, the Merlin III can handle serious horsepower with complete reliability. The new Merlin III blocks are a high quality component you can rely on with total confidence.

More From This Category

DART Engine Block, Cast Iron, 4-Bolt Mains, 4.550 in. Diameter Bore, 2-Piece Rear Main Seal, For Chevrolet, Big Block, Each

DART Engine Block, Cast Iron, 4-Bolt Mains, 4.550 in. Diameter Bore, 2-Piece Rear Main Seal, For Chevrolet, Big Block, Each

$4,341.67

View
DART Engine Block, Cast Iron, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, For Chevrolet, Big Block, Each

DART Engine Block, Cast Iron, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, For Chevrolet, Big Block, Each

$4,341.67

View
Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.8, Standard, 4.250water bn br GenVI, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.8, Standard, 4.250water bn br GenVI, Each

$4,216.56

View
Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.250water bn br GenV, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.250water bn br GenV, Each

$4,216.56

View
World Engine Bare Block, Cast Iron, Merlin IV BB Chev Iron Block - 10.200" Deck, 4.245" Bore, Nodular Caps, Std. Cam, Std. Lifters

World Engine Bare Block, Cast Iron, Merlin IV BB Chev Iron Block - 10.200" Deck, 4.245" Bore, Nodular Caps, Std. Cam, Std. Lifters

$6,500.00

View
Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.600 In. Bore, 10.400 In. Deck, Each

Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.600 In. Bore, 10.400 In. Deck, Each

$15,136.99

View