Pistons › BBC5312-030 BBC CP Pistons BBC5312-030 BBC CP Pistons $1,068.90 Big Block Chevy 24.5cc dome 4.530 Bore 4.000 stroke 6.385 rod, 10.8 to 1 with 118cc headBore: 4.530"Stroke: 4.000"Rod Length: 6.385"Compression Height: 1.400"Dome Height: +0.250"Dome/Dish Volume: +24.5ccReference Chamber: 118.0ccCatalog Compression Ratio: 10.70:1Piston Weight: 683gResulting Displacement: 516 cid Big Block Chevy 24.5cc dome 4.530 Bore 4.000 stroke 6.385 rod, 10.8 to 1 with 118cc headBore: 4.530"Stroke: 4.000"Rod Length: 6.385"Compression Height: 1.400"Dome Height: +0.250"Dome/Dish Volume: +24.5ccReference Chamber: 118.0ccCatalog Compression Ratio: 10.70:1Piston Weight: 683gResulting Displacement: 516 cid Add To Cart Added! You Might Also Like BBC5311-STD BBC CP Pistons $1,068.90 BBCR5115-030 BBC CP Pistons $1,407.00 BBCRE5321-105 BBC CP Pistons $1,778.70 BLS1203-005 LS7 CP Pistons $1,016.40 BBC5108-030 BBC CP Pistons $1,068.90