SKU:



SUPPORT HOLES

NONE OUTBOARD OUTBOARD/SNOUT
MOUNTING PATTERN 392/417 DONOVAN SLOT LONG SUPPORT HOLES OUTBOARD 144.4 156206-09 This idler plate fits a 392/417 Donovan, it has a long slot (1.01" x 6.0") and holes for an outboard support.
MOUNTING PATTERN 426 CHRYLSER SLOT LONG SUPPORT HOLES NONE 162.44 156206-04 This idler plate fits a 426 Chrysler engine block, it has a long slot (.77" x 7.0") and no support holes.
MOUNTING PATTERN 426 CHRYLSER SLOT LONG SUPPORT HOLES OUTBOARD 172.94 156206-05 This idler plate fits a 426 Chrysler engine block, it has a long slot (1.01" x 7.0") and holes for an outboard support.
MOUNTING PATTERN 426 CHRYLSER SLOT SHORT SUPPORT HOLES NONE 162.44 156206-03 This idler plate fits a 426 Chrysler engine block, it has a short slot (.77" x 4.63") and no support holes.
MOUNTING PATTERN 426/TFX SLOT ANGLED SUPPORT HOLES OUTBOARD 143.94 156206-01 This idler plate fits a 426 BAE or TFX engine block it has an angled slot (1.01" x 8.32") and holes for an outboard support. This plate also has a 3/8-24 tapped hole in the end of the slot so that a jack screw can be added to assist in tensioning the idler pulley.
MOUNTING PATTERN 429 FORD SLOT STANDARD SUPPORT HOLES OUTBOARD 216.58 156206-30 This idler plate fits a 429 Ford engine block, it has a standard slot (1.01" x 7.23") and holes for an outboard support.
MOUNTING PATTERN BBC SLOT STANDARD SUPPORT HOLES NONE 157.44 156206-18 This idler plate fits a BBC engine block, it has a standard slot (.77" x 6.0") and no support holes.
MOUNTING PATTERN BBC SLOT STANDARD SUPPORT HOLES OUTBOARD 162.44 156206-19 This idler plate fits a BBC engine block, it has a standard slot (.77" x 6.0") and holes for an outboard support.
MOUNTING PATTERN BBC SLOT WIDE SUPPORT HOLES OUTBOARD 179.93 156206-21 This idler plate fits a BBC engine block, it has a wide slot (1.01" x 6.0") and holes for an outboard support.
MOUNTING PATTERN BBC SLOT WIDE SUPPORT HOLES OUTBOARD/SNOUT 179 156206-22 This idler plate fits a BBC engine block, it has a wide slot (1.01" x 6.0") and holes for an outboard support and a blower snout support.
MOUNTING PATTERN BLOWER CASE MOUNT SLOT LONG SUPPORT HOLES NONE 79.41 156206-54 This idler plate mounts to a Roots blower case, it has a long slot (.77" x 5.23").
MOUNTING PATTERN BLOWER CASE MOUNT SLOT SHORT SUPPORT HOLES NONE 72.2 156206-52 This idler plate mounts to a Roots blower case, it has a short slot (.77" x 4.0").
MOUNTING PATTERN BLOWER SNOUT MOUNT SLOT N/A SUPPORT HOLES NONE 180.5 156206-50 This one piece idler plate mounts to your blower snout. The built in clamp is made to fit around snouts with a 3.5" diameter. The idler pulley mounts to a 5/8-18 tapped hole.
MOUNTING PATTERN LS SLOT STANDARD SUPPORT HOLES OUTBOARD 156.74 156206-70 This idler plate fits a LS engine block, it has a standard slot (1.01" x 7.0") and holes for an outboard support.
MOUNTING PATTERN SBC SLOT STANDARD SUPPORT HOLES NONE 134.95 156206-06 This idler plate fits a SBC engine block, it has a standard slot (.77" x 3.95") and no support holes.
MOUNTING PATTERN SBC SLOT WIDE SUPPORT HOLES OUTBOARD 140.57 156206-07 This idler plate fits a SBC engine block, it has a wide slot (1.01" x 3.95") and holes for an outboard support.
MOUNTING PATTERN SBF SLOT STANDARD SUPPORT HOLES OUTBOARD 451.1 156206-08 This idler plate fits a SBF engine block, it has a standard slot (1.01" x 5.85") and holes for an outboard support. This plate also features built in water jackets with -8AN ports.

IDLER PLATES

RCD offers idler plates to fit most applications. Machined from aluminum plate with a tumbled finish these plates provide a stable platform to mount your idler pulley. Several different slot lengths and positions are offered to meet your needs.