Grey to Red Motor Conversion
Page created by T Oct 27th 2012:
==Grey To Red Motor Conversion:==Holden Cars had Grey Motors from FX - EJ. Replacing a Grey Motor with a later Red Engine involves welding 2 Engine Mounts onto the Cross Member. The original 3 Speed Crash Gearbox and its Bellhousing will bolt up directly to any of the Red Engines.
===Grey To Blue or Black Motor Conversion:===The same procedure as Grey to Red Motor is used, but some provision must be made for the larger Diameter Blue/Black Clutch Cover Plate.
===Grey Motor Bellhousings FX - EK:=== FX - EK used a Bellhousing that was integrated with the Gearbox and was fully enclosed (no Tinware Lower Cover Plate).
===Grey Motor Bellhousings EJ:===EJ was unique in having a Bellhousing separate from the Gearbox and with a Tinware Lower Cover Plate.
===Block Bolt Pattern:===The Block Bolt Pattern is the same on all Holden Six Cylinder Engines from FX to VK.
===Engine Colours:===FX - EJ (Grey Motors). EH - VB (Red Motors). WB, VC, VH (Blue Motors). VK (Black Motors).
===Grey Motor Engine Mount:===Grey Motor Holdens had a single Engine Mount at the very Front of the Engine.
===Red Motor Engine Mounts:===Red Motor Holdens have two Engine Mounts. One on each side of the Centre of the Engine.
===Grey Motor Rear Gearbox Mount:===Grey Motor Holdens had no Rear Gearbox Mount. The Gearbox had Mounts at the Front of the Bellhousing for support.
===Red Motor Rear Gearbox Mount:===Red Motor Holdens had a single Rear Gearbox Mount.
===Power Considerations:===Note that GMH produced a revised 3 Speed Crash Box when the 179 was released so increasing the Engine size above 149 cu. in. may put excessive strain on the original 4 Bolt 3 Speed crash Box. Early 179's were released with Hydramatics only since the Hydramatic could handle the increase in Power.