Callies Compstar Sbc 3.750 Stroke, 350 Mains, 2.100 Pins, 4340 SAJ113-CS
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- Average Weight for3.750 in. Stroke Balanced to1750g Bob. = 50 lbs
- All Rod Journals Lightened
- Heat Treatment =Nitride Case
- Requires narrow bearings
Compstar PerformanceCrankshafts are designed byour engineers, and forged onproprietary dies, made to ourspecifications. They arerough machined from certifiedAISI 4340 forgings to ourtolerances, then finishmachined in our facility.
Beginning with properlyplaced counterweights thatnot only improve balance butreduce bearing loads, everyaspect of these highlystressed components has beenanalyzed. Our forgings arerough machined in a processthat includes double stressrelief operations that makethese crankshafts verydimensionally stable.
Hardened with a deep nitride,Compstar cranks are ideal forall types of abusive racingenvironments. All rod ournalsare drilled andcounterweights are profiledfor piston clearance. Withour consistent grind andpolish, along with ourCorrect.