Quote:
Originally Posted by Nick Challacombe
When I came to rebuild my 407 , 313 engine because, I think, very poor quality Irish petrol on a tour in Southern Ireland had caused one piston to loose its rings and scour the block.
When investigating the supply of 30th oversized liners in turned out to be far cheaper to use 40th pistons which were std on the 318. Every other dimension was the same.
I therefore think my engine is a 318 in effect. Not that relevant but I though interesting given the subject.
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Apparently there is a number possibly under the cylinder head that tell you the displacement of the block it would be interesting to know if it says 313 or 318 there would also be a letter/number code next to it such as 4W or M. You don't by any chance have any record of that? A bit of a long shot.