swapping heads

[bafittler]

Just out of curiosity, are the blocks of the 1ZZ and 2ZZ the same, with the head being the major change between the two engines? I am aware that there are different piston bores and strokes. I am contemplating of mounting a 2ZZGE head onto the stock block for my car.

I am aware that the 2ZZ can tend to be a little sludgy at times, and was thinking if it this could be counteract by having a longer stroke and bore. I guess the amalgamation of the best of both engines ... or a complete lemon when combined.

Yeah I know it would probably be easier to just buy a 2ZZ and install it rather than doing the changes I have mentioned ...

As pointed out by Northy the different bore and stroke would require a rework of the picstons and conrods etc. in the block.

Edited December 3, 2006 by bafittler

[Northy]

as you said they have a diff bore..so its not going to fit. Plus you would have to get a diff ECU and loom to handle the lift so not only is it easier it would prolly be cheaper to just get a whole 2zz

[Suprathai]

If I'm not wrong the only internals that are interchangeble is the crank from the 1zzfe into the 2zzge...and thats where it ends. Even then it requires minor work to fit...Stroke it out to 2L!!

[bafittler]

Hypothesis ended ... was unsure as to how different the 1ZZ and 2ZZ are on the bottom end ... hmmm 2ZZ GTE or 2ZZ GZE is starting to sound rather appealing ... does anyone know if ca$h cuverters take organs (they seem to take everything else)?

[grima88]

Hypothesis ended ... was unsure as to how different the 1ZZ and 2ZZ are on the bottom end ... hmmm 2ZZ GTE or 2ZZ GZE is starting to sound rather appealing ... does anyone know if ca$h cuverters take organs (they seem to take everything else)?

Yea they hav different blocks and everything

[MT]

take your 1ZZ and stroke it to 2 litres, then put a 2ZZ head on it with larger pistons and a new ecu and now u are talking.

[ralyrt]

mate dont bother, the 2zz block has alot of differences, the 1zz is missing to many things in order to convert to vvtli,e.g lining up the head is one, and also missing a few holes, so drilling is required

cheers