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guys, chasing info on years or models the blue motors came out in? and any variances in them to red motors, I have heard about the cast bracket holes for air cond etc but is that really the only diff? can anyone help
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Blue motor was in the VC and VH, Black motor is almost identical and was in the VK. The big differences were a fully counterweighted crankshaft, bigger better conrods, a HEI ignition system,a 2 barrel Varijet Carby and a 12 port head. There were numerous
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To the best of my knoledge- VC to VH modles. Better head flow, 4bbl carb and manifold, electronic ign, 9.2:1 for 5L, 9.0:1 for 4.2L The other thing is commodors have differant water pump shaft lengths due to belt location. Better motor than the red
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Hi HQLDEN.
Do you mean 6 cyl or V8 Blue Motors.
Dr Terry
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Sorry Dr Terry, I did mean 6cyl
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WB Holdens also had a blue motor. They also had bigger clutches, and a few water passages different on the top of the block. The rods are basically the same as a 1973 Bathurst XU-1, except the rod bolts are slightly larger in the blue/black motor.
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