Products / 4.500" Ultra Raised

4.500" Ultra raised cylinder block is the future in SBC racing allowing super large cubic inch SBC to be made or retain the same stroke and bore and have the advantage of a stronger block

  • Large diameter cam bearings allowing for more valve train stability wit up to 9 cam bearings no cam clearance issues bore spacing spread from 4.400" to 4.500" It has spread pan rail options extreme can except strokes up to 4.750" with up to a monster deck height of 10.600"
  • With or with out fuel pump mount, 4.500" ultra raised requires some special components
  • The cam is raised 1.572" higher than STD SBC position
  • Naturally aspirated bore size up to 4.310
  • This motor could be built as large as 554 cubic inch small block
  • Cast from virgin A356 T6 aluminium
  • Priority mains oiling,
  • Tapered main webs
  • Billet steel caps / billet aluminium girdle
  • Darton ductile iron sleeves
  • A1 fasteners
  • Dry sump only
  • Raised cam location +1.572"
  • Spread pan rails two options


Custom spec options

  • Custom deck height 8.750" to 10.600"
  • Needle roller cam bearings 50mm 55mm and 60mm 65mm
  • Lifter bores .842" .875" .903"1.060"
  • Side light weighting with engine mount
  • Side light weighting with out engine mounts
  • Front and rear light weighting with or with out fuel pump mount
  • Light weight late model / sprintcar bell housing options
  • Lifter bore location and angles
  • GS lifter location for sprint cars available
  • Large stroke pan rail same GenII
  • Extreme stroke pan rail
  • Billet cap girdle 7075 aluminium
  • Fully enclosed cam
  • Nine cam bearings depending on cam lay out
  • Custom head stud location if required