drowz Posted January 13, 2008 Share Posted January 13, 2008 I bought a 81 280zx turbo, hoping to get the block and p90 head. Turns out that someone messed with the engine, they shaved the head and did a poor job shimming the cam towers. Now the cam towers are horribly grooved, and the head is bent. I couldn't even turn it at all with all of the rocker arms off. So now on to my real question. If I put on the e88 head from my 73 240z onto the f54 block, would I likely see any catastrophic problems? Also, any idea what kind of compression I could see with flat top pistons and a 1mm head gasket? Quote Link to comment Share on other sites More sharing options...
naviathan Posted January 13, 2008 Share Posted January 13, 2008 1mm head gasket and flattops would probably net you somewhere around 11:1 with an E88. That's not ideal for a turbo application to say the least and extremely difficult to tune on pump gas naturally aspirated. I would find another head or attempt to fix that one if you can. Maybe replace the cam towers. Get block off plates from MSA for the oil bar holes and they should work just like the regular cam towers. Quote Link to comment Share on other sites More sharing options...
drowz Posted January 13, 2008 Author Share Posted January 13, 2008 I guess I should have said that I wasn't going to use the turbo. Or the efi. Sorry, I'm looking for more like 10:1, so do you think like a 2mm gasket would work? Or is there a happy medium like 1.5 or something? Quote Link to comment Share on other sites More sharing options...
TONY C Posted January 13, 2008 Share Posted January 13, 2008 check this out. http://www.ozdat.com/ozdatonline/enginedesign/ Quote Link to comment Share on other sites More sharing options...
panachedk Posted March 7, 2008 Share Posted March 7, 2008 so i played with that... so if i run a f54 block with an e88 head and flat top pistons with 1mm metal gasket id be at 10:1 which is what i want. or is my method all sorts of f'd? Quote Link to comment Share on other sites More sharing options...
SLVRBLLT40 Posted March 7, 2008 Share Posted March 7, 2008 so i played with that... so if i run a f54 block with an e88 head and flat top pistons with 1mm metal gasket id be at 10:1 which is what i want. or is my method all sorts of f'd? I just finished my 280 F54 engine, so I still have all the head gasket specs for a 1mm FelPro saved in my compression calulator Anywho, with said head gasket, if you're running the flat top 280 pistons, which actually pop up above the deck .020, and an uncut E88 head at 44.7 CC combustion chambers, you will be running at about 10.6:1 compression. If you use the dished turbo pistons, you'll be at aroun 8.4:1 or in that neighborhood. Quote Link to comment Share on other sites More sharing options...
panachedk Posted March 7, 2008 Share Posted March 7, 2008 sounds good to me... now, to find some 280 pistons. Quote Link to comment Share on other sites More sharing options...
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