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View Full Version : 1200 to 1400 (quick question)



leebo
06-09-05, 09:31 PM
1.2i 1.3 and 1.4 have the same stroke

73.4mm

so it wont be any less or more revvy than a real 1400

you'll just have 77.8mm bore rather than 77.6mm bore giving the extra capacity

but as someone mentioned the later engines have 18mm gudgeonpin and earlier ones had 20mm

so u'd need a 1.2i crank (or 1.4 or 1.3 crank as they are all the same)
1300 rods
1200 carb pistons

or overbore the carb block to 78.1mm and use 1.2i crank and rods plus 0.5mm oversize 1400 pistons

at the end of the day the only advantage of doing all that (it wont exactly be cheap as your basically doing a full rebuild) is to have a 1400 with "12ST" on the engine block for some insurance hacks

if all u want is a 1400 engine then go get a 1400 engine out scrapyard and rebuild it if need be

hey, thats a quote from a long time ago but was wonderin if it has to be 1300 rods? cheers lee

Aragorn
07-09-05, 12:21 AM
the reason u need 1300rods is beucase the 1200 carb pistons have larger gudgeon pins

what are you trying to achieve? using all those bits is verging on pointless if all u want is a 1400 motor?

leebo
07-09-05, 12:41 AM
cheers man, a mate was askin. i hope to be gettin my 1400 on t40s soon so of no use to be but was curyous myself. cheers again lee