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Gloss Black 90° Silicone Reducer / Expander Hose 3/4" (19mm) to 1/2" (13mm) I
The snout housing is made from aircraft billet aluminium and the snout shaft is made from 4100 series heat treated steel
PSYCHO-SMALL
Fully polished/clear bright anodised
Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASAO21A-MG Product:4.000" Stroke, 2.100" Pin, 400 Mains Gloss Black 90° Silicone ReducerCallies Magnum Series Forged 4340 Crankshaft for Small Block Chevy4. 000" Stroke, 2. 100" Pin, 400 Mains CASAO21A MG SAO21A MG After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra pure SAE 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a crankshaft with unsurpassed wear