Originally Posted by
oohogwash1
The near new 200 block was originally supposed to be good for 500 hp. I am going to take your advise and rebuild the bottom end. I just had to let the wife know that the house is further in debt and realise that yet again, a good plan went south :-(
It seems Mahle pistons are good. Not sure on what to use for rings, bearings etc... where should I go, where can I get specs to give to an engine builder (rather than hoping he knows where to get it as YB knowledge is limited here)
I know this is a little off the wall but I want to get a CR of around 8.5:1 up from the standard 8:1. Don't flame me, there are reasons for this. Are there pistons that help on this?, I only see 8.0 and 7.2 on web. Also I would like to get pistons that will take a high lift cam without paying for extra machining.
Thanks for your help guys.
standard mahle pistons are forged and good for circa 450-500hp IMO; if you are going for 500hp i would consider getting the 200 block long studded (fit and forget!); you can use standard rings no problem
all of these parts are available through lots of traders in the UK - Matt Lewis or woodford garage would be your best bet (tried and tested)
matt lewis comes on here so maybe send him a PM
i would advise getting the valve pocketed to avoid piston to valve contact; and if you are going for 500hp and want the engine to rev high; maybe get ISKY double valve springs
the CR can be whatever you want; just get the pistons machined to suit; personally i have no experience of the CR you want
you can always ask any questions on here - there's lots of far more experienced people than me on here
i assume the crank is on standard size? the sheels will be stamped with a size if not, normally .25 or .5