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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Spark Only
This 555ci Big Block beats their 572 by over 100 on both horsepower and torque
Use a standard depth oil pan to maintain ground clearance for street use
Dart’s priority main oiling system ensures high rpm reliability and includes provision for oil restrictors in the lifter valley
300 hp which covers naturally-aspirated
Callies Ultra H-Beam LS Connecting Rods Valves Spark OnlyAt Borowski Race Engines, we use Callies Ultra rods for a lot of our LS engine builds. Why? Because they survive where others don't. Callies developed the Ultra connecting rod with the design goal of an uncompromised strength to weight ratio. Every Ultra connecting rod is produced from specially formulated Timken Steel 4330 and precision forged for uniform grain flow and consistency. Many geometric nuances are incorporated into the design of Ultra
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