Block Saga - whats my next move??...

[JP]

Can't use a 7a on stock pistons as different bore size. got several blocks on the shelf I'm sure one of them is pretty decent. can measure them tomorrow if interested just drop me a pm.

[europeanme]

He was going to use 7a but the price of custom pistons put him off.
He then bought this ABY block to rebuild instead with standard pistons
I got a price a month or so ago for oversize pistons for a 20v and it was £1000+ so just as cheap to buy JE ones

This is true...

I was hoping to rebuild a motor seperately, as i use my avant daily, and then swap the engines over and save my original engine for another project. The whole idea was to keep costs to a minimum and get something quick and reliable.....

I have thought about a few of the options mentioned but once again it is back to costs being the main hurdle....

What is the difference between the ABY and AAN block??....if any....having never had any exposure to the AAN motor....

cheers for all the help folks....

Mike

[europeanme]

Can't use a 7a on stock pistons as different bore size. got several blocks on the shelf I'm sure one of them is pretty decent. can measure them tomorrow if interested just drop me a pm.

aren't the 7A pistons cast as apposed to forged ones in the s2....i could be wrong..often am...

[Jamo]

7A pistons are 82.5mm and wrong CR

[europeanme]

7A pistons are 82.5mm and wrong CR

and getting the ABY block bored to suit wont work??... as the CR won't alter after boring??...

[QuattroFever]

Boring wont alter cr. Its the squish area that needs changing eg. dish the pistons.

Custom pistons is the way to go dude.
Get in it for the long term a rebuild is v.costly any which way.

Your luck seems as good as mine

[Jamo]

Personally Acidburn has offered you a block, I'd go that route

[QuattroFever]

Maybe im missing something but another hone + crank polish + bearings + deck the block + main bolts and youre going to use secondhand pistons?

[europeanme]

thanks again for the help...
I am hopefully sorted now....

watch this space...:mischeif: