Catalog: Crankshafts and Crank Kits
Company/Brand: NAPA
rod and main bearing size in Crankshafts and Crank Kits by NAPA
cleaning each unit is thermal-baked and shot blasted in goff equipment oil ... brushes in addition after machining and polishing the cranks are power washed ... and the oil holes are cleaned again journal ... finish promotes longevity runout total main bearing runout is measured at 0.0000 ... hole is hand deburred dimensional the size and out of round spec is controlled to ... completely displaces any moisture and oxygen normal heating of the journal ... elimination of surface cracks porosity and breakage of journals due to weld ... at 550 degrees fahrenheit until stable and shot peened in a 4-minute cycle ... crankshafts receive a rust inhibitor and are foamed in place inside a heavy ... distance between the center of the main journal and center of the rod journal ...

stroke use with block final cu in rod length w 030 block piston availability ... strength lightening holes in all rod throws fully radiused counter weights ... precision ground and micro polished journals manufactured ... been available to the aftermarket and are much stronger than o.e cast iron ... ductile material for less impurities and greater molecular bonding benefits ... include increased fatigue life and bearing surfaces that actually improve with use ... on this process by utilizing superior and more expensive permanent shell core ... special gas relief gates that allow air and other non-solid compounds to escape ... greater density higher yield strength and a superior journal finish in addition ... lightening holes are machined into all rod throws journals are precision ground ... and micro polished while each oil hole is ...

stroke use with block final cu in rod length w 030 block comments continued ... can use 350 pistons if stock length 400 rods 5.565 are used if stock length 350 ... rods 5.700 are used special 383 pistons ... can use 350 pistons if stock length 400 rods 5.565 are used if stock length 350 ... rods 5.700 are used special 383 pistons ... balance must use special 383 6 rod pistons for externally balanced 383 ... engines with 6 rods use crank #c383 for use with one piece ... rear main seal found in late model applications ... can use 350 pistons if stock length 400 rods 5.565 are used if stock length 350 ... rods 5.700 are used special 383 pistons ... must be also be purchased 350 main size can use pistons designated for use in ... been clearanced for use with 350 or 400 rods lightweight 400 crank 47 lbs .125 ...

stroke use with block final cu in rod length w 030 block comments piston ... the features shown on page 102 plus · rod journal diameter has been sized for big ... block chevrolet rods · clearanced for 6.635 rod length ... with aftermarket big block chevrolet rods 6.635 minimum length use with ... aftermarket big block chevrolet rods 6.635 minimum length use with ... aftermarket big block chevrolet rods 6.635 minimum length 7,000 rpm maximum ... cranks · · · · nitrided exact index and stroke chamfered oil holes cnc ... on all journals · stress relieved and shot peened 460 489 489 4130 forged ... crank use with .250 longer than stock rods lightening holes in all throws 4130 ... crank clearanced for stock length rods lightening holes in all throws iiiiii ... replacement cranks · · · · standard size rod and main journals · eliminates the ...

information prior to balancing and installation of the crankshaft you must ... remove all protective packing grease and inspect the crankshaft especially all ... running surfaces rod and main bearing journals for any external damage that ... have occurred during transit 2 clean and clear all oil passages with a small ... the removal of all packaging material and debris 3 check all threaded holes ... ground surfaces for packaging material and debris make certain all crankshaft ... surfaces are smooth and clean 4 measure all bearing journal ... measure the inside diameter of torqued bearings using a standard bore gauge 5 check ... both rod and main bearings to insure clearance of the fillet ... any area in which the outer edge of the bearing contacts the crankshaft journal radius ...

runout total main bearing runout is measured at 0.0000 to a ... hole is hand deburred dimensional the size and out of round spec is controlled to ... completely displaces any moisture and oxygen normal heating of the journal ... elimination of surface cracks porosity and breakage of journals due to weld ... at 550 degrees fahrenheit until stable and shot peened in a 4-minute cycle ... crankshafts receive a rust inhibitor and are foamed in place inside a heavy ... distance between the center of the main journal and center of the rod journal ...