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Hi All
Over the years I have seen the exact capacity of Holden 202s referred to as either 3298cc or 3310.
Why the differece, and if there is a slight difference where do the "extra" 12ccs come from? A mate said it has to do with early and late type engines.
Anyone know any better?
Thanks
Jack
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The 202 has always been 3 5/8" bore and 3 1/4" stroke. This works out as 3297.932cc. I don't know where the other figure comes from. Even using +0.005" pistons I still only get 3307cc. I also noticed that the early Scientific publications/Gregorys refer t |
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they seem to round them off to the nearest number, VL 5.0 is 4.9 the old 5.0 is larger than 5.0 only just!
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It was the VL that was suppied with a 304 engine wasnt it.So that it could race in the under 5 litre class.It was the crank that was differant in them wasnt it (with a smaller stroke). Is this true.
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The VK debuted the 304 in 1985.
The 4.9L name was coined to help mechanics, assembly workers & others differentiate between a 308 & 304 at a glance (there were other minor revisions to the emmission system).
It was also a way of sticking it to the F |
Cheers,
Mick
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Thanks Commodorenut.So did they have a differant crank?? I was shown one and told it was a 304 crank but cannot remember if it had 304 cast on it or if it was in white paint marker. Is this around the time that they had the exhaust manifold/extractor with
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Crank is different. Still had 308 on it though.
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Thanks Byron. That would make it hard to know its a 304 crank.
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Didn't the 304's have something like 0.5mm less stroke?
Paul: Yep, that was the touring car rules back then...exhaust designs were free from the first join back so most manufacturers just moved the join closer to the manifolds...
Cheers...Dave
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Im not sure how much, I just remmember being told they were differant.So it was true with the exhaust. Any way to bend the rules was tried I suppose.
Thanks Dave
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When Qld Transport pull up my 1975 Torana in their system, it defaults to 3310cc engine size. When they pull up my 1974 HQ, it defaults to 3298cc. Actually... might be Shannons... either Qld Transport or Shannons.
Who knows if there actually was a d
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