As you can see the stroke for the 5.4l modular is longer than the 460 big block with a bore smaller than a 5.0l (302).
What I am concerned with is that ford surely can not expect to lengthen the stroke again of the 5.4 to create more cubes nor can it afford to increase the size of the bore as the wall thick shown above is what is left between cylinders. If they wanted to produce a 5.8litre out of the 5.4 motor they would need to increase the bore to 93.435mm. This would leave only 6.565mm between cylinders.
From what I have read on this forum and in the magazines it is likely the the general is going to up the capacity to 6.0l of the LS1 in the future. Where does this leave the ford engine.
I wonder if the new 5.0l modular being developed for the mustang in the states is actually based on the dimensions of the old windsor to allow for future capacity increases.
From what I see above I am concerned that the 5.4 is already at the end of the road in the capacity stakes.
Saying that I will be quite happy to kick Holdens a$$ with a smaller capacity motor which is naturally aspriated.
What do you guys think? Do you think they will bring out a big block version of the modular for capacitys of 6.0L and beyond.
I was looking at the Ford motor sport blocks you can buy. The alloy ones in particular and I have just found that they offer a 302 and a 351 alloy block with simese bores which have an bore wal thickness between cylinders of just 5.3mm.
I gues these things aren't built to last a long time just a powerful short time.
So I gues they could have simese bores on the 5.4 and increase the bores to reach 5.8l but not sure how this will last.
just a point to the first thread, the stroke on the 5.4 modular is longer than the 460. Jaguar have ben using this design for years, and the power output is staggering to say the least. If Ford are doing this now, for the modular, then whats to stop them producing a formula engine the same as the F1's, and stuffing that in the later 2004 AV. That would get me excited very quickly.
Something with the power of an F1 would kick arse..
I dont mean an F1 engine as such, but along the same lines. Long stroke, small bore, compact like an F1 but in a V8 configuration, along the same power output, well not quite the same but along the same lines, great torque lowdown, and then bang your gone.
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