Hi guys.
I'm modifying the 202 in my HQ Kingswood and have come to the head and want to do something with it.
I want to keep the carby as I've already got an XE Weber ready for installation.
I want to know which head is good that I could bolt on from another car for performance increase, it doesn't have to be dramatically increased..

I plan on installing the XE Weber carby, a mild cam, blue motor distributor and install a thermo fan or 2, removing the engine mounted one. Any other easy modifications you could suggest would also be appreciated, but nothing too drastic or expensive as I'm on my Provisionals.. Thanks alot.

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Originally posted by HK1837
One of these. This is a recoed one but you'll pick up a 2nd hand one for a few hundred.

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Wow, thanks alot brother. I didn't realise that YT made heads for Holden Sixes, that's awesome.
I was thinking of putting a Black Motor Head (12 Port, Carb) on it, any thoughts on this? Thanks once again.

If you're looking to build a decent motor for a particular car, look at the components as a combination to build a nice package to suit your car & driving requirements.
Parts that you hear are worthwhile trying might work OK, but not necessarily get the best from the motor.
Work out what you are going to use the motor for & research/build toward it.
The time & effort will be worthwhile, even if the motor you build is simply a reliable, torque based daily driver.

Blue and black head is basically the same thing. Blue is carb, black is EFI. Just painted different, and the Blue has air pump holes, which can be plugged easily.

So the EFI head is actually the neater looking head

Yes, I was going to mention the same thing, the only Blue/Black heads with air pump holes are the VH 2850 & the VK 3.3 EST. All other Blue/Black 6-cyls (& this is the vast majority) have no holes. Anyhow you can easily plug them with 5/8-inch UNF plugs & they are almost un-noticeable.

I don't believe any WB engines had an air pump, did they ? Or did they carry over the VH 2850 motor mid-way thru production, when the VH was released. I always thought that WB just ran VC type Blue motors.

The Black head casting (in both carby & EFI forms) has a slightly better shaped throat design for improved flow, in this area they are a bit better than Blue head. Other than that they are basically the same.

Tom118 said "I didn't realise that YT made heads for Holden Sixes, that's awesome."

The fact is that the Yella Terra 6-cyl Holden (Red) head was the mainstay of Dave Bennet's business for nearly 20 years before he started casting his own heads.

Dr Terry

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Originally posted by HK1837
I thinkyou are correct Terry, I don't actually recall seeing a WB with an air pump. I think the late WB engines were actually black blocks painted blue but not sure if they ran the VC head or just a black EFI head.

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Given that VK was released in early 1984 & the WB ceased production in late 1984 (in relatively volumes) I believe that the WB engines were just stockpiled from 1983 & I doubt any VK blocks or heads were used in WB production.

It would be interesting to see the latest cast block date from any WB (6 or V8) since they were all Blue motors.

Dr Terry

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Originally posted by HK1837
The WB engines sit in the Commodore engine number sequence, and the late ones have engine numbers in the VK range from the small sample I have seen. Plus they have the VK engine number boss that is unmachined unlike the machined earlier VH and VC blue motors, so I lean towards them being simply black motor blocks with stockpiled heads and crankshafts.

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Good point, especially about the cast finish engine mount boss, that's a bit of a give away.

You mentioned stockpiled crankshafts, what's the difference between a VK crank & a WB if we're talking about 3.3 motors ?

Dr Terry

I believe the black heads efi and carby also had larger vaves so were better that way. and I don't see why yo can't use a blue or black manifold.