BIG-BLOCK CYLINDER BLOCK COMPONENTS

6264902

O-RING SEAL (SOLD INDIVIDUALLY)

  • Use under the rear main bearing cap on all 1991 and newer Gen V and Gen VI 454 and 502 engines  

3859927

OUTER MAIN CAP BOLT, MARK IV

  • Used with Mark IV (1965-1990) cast-iron Big-Blocks with 4-bolt mains 
  • Sold individually; order 10 per engine

10106461

INNER MAIN CAP BOLT, GEN V AND GEN VI

  • Used with Gen V and Gen VI (1991 and newer) Big-Blocks with 4-bolt mains 
  • Sold individually; order 10 per engine   

3909834

INNER MAIN CAP BOLT, MARK IV

  • Used with Mark VI (1965-1990) cast-iron Big-Blocks with 4-bolt mains 
  • Sold individually; order 10 per engine   

88962212

MAIN BEARINGS, 572 ENGINE

  • Complete main bearing kit for 572 block with standard-size mains  

12480035

CYLINDER SLEEVE, STANDARD

  • Steel cylinder sleeve for aluminum block P/N 12370850 and 88958696
  • Sleeve has 4.240” bore and finish bores to 4.250”   

3902885

WINDAGE TRAY STUD

  • Used for mounting splash shield P/N 3967854  

10224104

WINDAGE TRAY STUD, GEN V 454 AND 502

  • Used with Gen V 454 and 502 engines

88958656

WINDAGE TRAY BOLT, 572

  • Used with 572 engines

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.