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Red or blue 202 - which one do I rebuild?

Hi guys, so I purchased an HQ about 3 years ago and it currently has a Smokey and tapping blue 3.3 motor. The original red 202 come with the car and I’d like to rebuild one of the two so that I have a reliable package for family road trips. The car is all original with the blue motor the only addition. My heart is telling me to rebuild the red motor so that the car is back to original, but what am I missing out on if I don’t use the blue motor? I know it has more ports and the different fuel pump and an electronic dizzy, so am I going to end up with a more unreliable engine if I go back to the red?

Opinions please, and who does a good rebuild kit, I’m not after a race engine, just a strong reliable motor that will tow a caravan and 4 people up a hill without overheating.

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if you have some proof like the owners handbook or original invoice that shows the red motor as original and the rest of the car is unmolested then I'd rebuild the original..if not the blue engine has a better head and ignition system than the red..you could rebuild that and paint it red to look authentic...the original red was pre pollution in a HQ but the blue's basically recovered the losses experienced with the later reds with pollution control..

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Andrew

Like Andrew said, what ever you build make sure you put the electronic ignition in for easy starts, low maintenance and better performance. The electronic distributor will fit both.

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theres a few plus's and minus's to the both of them
but dissy, fuel pump and other bolt on's are irrelevant cause theyre interchangeable.

the blues have a horrible short valve spring installed height which means you need suitable valve springs for a non-standard cam - these cost more than red springs. not a mega big thing.

manifolds are far more common for reds but the stock blue one is not a bad thing with a good working varajet.

blue flywheel (if its manual) is lighter to offset the heavier crank, and takes a larger diameter pressure and clutch plate. some clearancing may be necessary in the bellhousing if used.

i have built a fair few of both and id say dont expect big differences if similar mods are done to either. no matter which one you decide on, the headwork/cam/compression combo is the most important thing to get torque for towing without making a thirsty inefficient pig.
good headwork will make excellent power and torque with no downside to fuel economy - or even an improvement...

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So Ben, at the end of the day as an engine builder which would you rebuild red or blue. Please don't take it the wrong way.

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as for rebuild kit, whoever you use for machine work would likely be your best bet to supply quality stuff at a decent price.

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Ben you’ve kind of answered my other questions, so the motor can be built to provide torque for towing which is good. The blue motor seems to have nice clean alloy bell housing matched to the dirty old red 3speed box (manual on the tree) which I’m guessing is original. The red motor still has the flywheel bolted to it but no bell housing, are the bell housings interchangeable? The red motor still has the stromburg carb which I’m told is poo.

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Why not use the red block with the blue motor crank rods and head, its an easy conversion to fit the 12 port head, which flows better than the red head, if left stock, and the blue crank will give better torque, you also retain the original block too, all positives. I'm currently doing this to a HQ red 202 that's going into an EJ holden ute now, Black fuel injected head, black {same as blue} crank and rods,{blue / Black rods are stronger than stock red rods} a mild cam and a ADM34 weber carb, this simple combo will run rings around a stock red 202...

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