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LS Aluminum Race Block Tall Deck 4.160 Bore; This block has a 9.750 deck height with a 4.165 bore and a 6.38 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

5.3L Modular Boss Strocker Short Block; Modular Stroker Short Block Engine; 4.6L 3V; Incl. Block/Cylinder Head Changing Kit/Camshaft Drive Kit/Engine Mount Brackets;

LS Aluminum Race Block Tall Deck 4.125 Bore; This block has a 9.750 deck height with a 4.125 bore and a 6.38 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

LS Aluminum Race Block Standard Deck 4.165 Bore; This block has a 9.240 deck height with a 4.165 bore and a 5.87 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

LS Aluminum Race Block Standard Deck 4.165 Bore; This block has a 9.240 deck height with a 4.165 bore and a 5.87 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

LS Aluminum Race Block Standard Deck 4.125 Bore; This block has a 9.240 deck height with a 4.125 bore and a 5.87 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.

LS Aluminum Race Block Tall Deck 4.100 Bore Unfinished; This block has a 9.750 deck height with a 4.100 bore and a 6.38 cylinder sleeve length. Cylinder walls are Siamese cast with press-in cast iron sleeves. 12AN feeds for dry sumps. Aircraft-quality A357-T6 aluminum. 6-Head Bolt Design.