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RHS (Racing Head Service) 54905
LS Aluminum Race Block Standard Deck 4.100 Bore; This block has a 9.240 deck height with a 4.100 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.
RHS (Racing Head Service) 54906
LS Aluminum Race Block Standard Deck 3.900 Bore; This block has a 9.240 deck height with a 3.900 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.
RHS (Racing Head Service) 54906U
LS Aluminum Race Block Standard Deck 3.900 Bore; This block has a 9.240 deck height with a 3.900 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.
Edelbrock 54903U-904
Edelbrock® RHS® High-Performance Standard-Deck LS Engine Block; RHS LS Block, Standard 9.240" Deck, .904 Lifter, 55mm Roller Cam Bearing (Machined Only) - Hone to 4.120"
