dazla100 Posted May 31, 2016 Share Posted May 31, 2016 I have a 2jz-ge engine which I have recently started to rebuild in doing so when I removed the head the top of the block was pitted. As I will be installing a turbo in the hope to achieve 500 bhp I decided to purchase some 86.5mm cp pistons with the compression ratio of 8.5:1. I sent the block away to the engineering company who bored and skimmed the block. The issue I have which is extremely frustrating is the engineering company doesn't know how much they had taken off on the skim even tho o asked them to write it down so I can order the correct head gasket. After weeks of argumens with them they asked me to find out the the measurements of the block so they can measure mine and tell me how much was taken off. Is there anyone on this page who can advise me on where to go with this as I cannot find the precise mesurments on a 2jz block and I'm pretty certain I won't be able to. I don't wanna just run a stock gte 1.3mm head gasket on it as I could risk damaging the pistons or even the valves. Quote Link to comment Share on other sites More sharing options...
Dnk Posted May 31, 2016 Share Posted May 31, 2016 Speak to Chris Wilson or Lee at SRD Quote Link to comment Share on other sites More sharing options...
dazla100 Posted May 31, 2016 Author Share Posted May 31, 2016 Speak to Chris Wilson or Lee at SRD Okay will do thank you Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 31, 2016 Share Posted May 31, 2016 Stick the crank rods and pistons in, measure how far down the bore the pistons are. Do the maths. Measure the head combustion chamber volume, add in the volume of a stock head gasket. Work out the CR. Go from there. Only worry is if they have milled the block so much the pistons poke out of the top... Anything else is guesswork. If you really want I can measure a virgin GE block height, but I have to get it out of storage, clean the sump face put it on the surface table and measure it, then put it all away again. IE, I want paying Have you checked the factory manual, I would expect that to give stock block height with measurement reference points. Quote Link to comment Share on other sites More sharing options...
dazla100 Posted May 31, 2016 Author Share Posted May 31, 2016 Stick the crank rods and pistons in, measure how far down the bore the pistons are. Do the maths. Measure the head combustion chamber volume, add in the volume of a stock head gasket. Work out the CR. Go from there. Only worry is if they have milled the block so much the pistons poke out of the top... Anything else is guesswork. If you really want I can measure a virgin GE block height, but I have to get it out of storage, clean the sump face put it on the surface table and measure it, then put it all away again. IE, I want paying Have you checked the factory manual, I would expect that to give stock block height with measurement reference points. Thanks for the advise mate Lee at srd has recommended going with the stock 1.3mm Quote Link to comment Share on other sites More sharing options...
goldenvtr Posted May 31, 2016 Share Posted May 31, 2016 if its any help i had 7 thou taken of my head and a 1.8mm headgasket - block was just cleaned. no material removed Quote Link to comment Share on other sites More sharing options...
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