Quote:
Originally Posted by IanA
And now seeing that ridiculous inter-bore gap between 1-2 and 3-4, I'm not surprised.
Often happens on over-bored engines but on a production engine- why do that?
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Because the 1500 basically IS an overbored engine. It was originally designed an 803 cc four pot for the Standard 8, and then enlarged to 947, 1147, 1296 and finally 1493 cc - the gap between 2 and 3 is determined by the centre bearing of the crankshaft, so to enlarge it, they had to reduce the space between 1-2 and 3-4
As you can see from Scottie's pictures, 1493 cc was the absolute maximum they could get without a major redesign of the basic block...