Pistons › BBC5312-STD BBC CP Pistons BBC5312-STD BBC CP Pistons $1,068.90 Big Block Chevy 24.5cc dome 4.500 Bore 4.000 stroke 6.385 rod, 10.7 to 1 with 118cc headBore: 4.500"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: 10.60:1Piston Weight: 667gResulting Displacement: 509 cid Big Block Chevy 24.5cc dome 4.500 Bore 4.000 stroke 6.385 rod, 10.7 to 1 with 118cc headBore: 4.500"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: 10.60:1Piston Weight: 667gResulting Displacement: 509 cid Add To Cart Added! You Might Also Like BLS1200-030 LS7 CP Pistons $1,016.40 BBCSRE5326-115A BBC CP Pistons $1,778.70 BBC5312-060 BBC CP Pistons $1,068.90 BLS1204-030 LS7 CP Pistons $955.50 BBCRE5332-030 BBC CP Pistons $1,778.70