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CP Performance Boaters Shopping and Product Info Guide
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Dart
Big M Cast Iron Big Block

Siamesed extra-thick cylinder walls resist cracking & improve ring seal (minimum .300" thick with 4.625" bore).
Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures.
Standard 9.800" and extra-tall 10.200" deck heights available for stroker engines.
Four-bolt main bearing caps in steel or ductile iron have splayed outer bolts for extra strength.
Crankshaft tunnel has clearance for a 4.500" stroke crank with steel rods without grinding.
True "priority main" oil system lubricates the main bearings before the lifters.
Oil filter pad is drilled and tapped for an external oil pump.
Rear four-bolt cap uses standard oil pump and two-piece seal - no adapter required.
Lifter valley head stud bosses prevent blown head gaskets between head bolts.
External block machining reduces weight without sacrificing strength.
Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in any chassis.
Dual oil pan bolt patterns fit standard and notched oil pans.
Bellhousing flange and rear main bearing are reinforced with ribs to resist cracks.