Joey J Posted February 24, 2015 Report Share Posted February 24, 2015 Hey everyone, I'm in the process of doing an l28et swap into my 280z but the block is damaged and I'm in need of a new one. From my understanding I need a F54 block. Are there differences between the years or between turbo and non? Any help is appreciated! Quote Link to comment
Stoffregen Motorsports Posted February 25, 2015 Report Share Posted February 25, 2015 I don't think the turbo motors have piston oilers or anything else that would make them special, so no, I don't think turbo blocks are any different from a non turbo L28. The only thing I can think of is maybe, and this is purely a supposition, maybe the cylinder walls are thicker. Were the F54 blocks turbo only? Or were they non turbo blocks as well? The answer to that question may indicate one way or the other. Quote Link to comment
Stoffregen Motorsports Posted February 25, 2015 Report Share Posted February 25, 2015 Is there a knock sensor on the side of the block? Quote Link to comment
260zkaboom Posted February 25, 2015 Report Share Posted February 25, 2015 http://datsunzgarage.com/ this is the site to see a lot of info on the z stuff. Quote Link to comment
datzenmike Posted February 25, 2015 Report Share Posted February 25, 2015 11010-F5480...... L28E used through '81 11010-P9080...... L28ET '80.5 - '83 and all L28E after '81 Quote Link to comment
Joey J Posted February 28, 2015 Author Report Share Posted February 28, 2015 I don't think the turbo motors have piston oilers or anything else that would make them special, so no, I don't think turbo blocks are any different from a non turbo L28. The only thing I can think of is maybe, and this is purely a supposition, maybe the cylinder walls are thicker. Were the F54 blocks turbo only? Or were they non turbo blocks as well? The answer to that question may indicate one way or the other. I beleive turbo and non turbo both use F54 blocks but I was hoping to confirm that between the years there are no changes. Quote Link to comment
Joey J Posted February 28, 2015 Author Report Share Posted February 28, 2015 Is there a knock sensor on the side of the block? Unfortunately I don't have the block. A machine shop has it and it's tough for me to get to it. I'll try and find out asap. I beleive there was a sensor by the oil filter. Quote Link to comment
Joey J Posted February 28, 2015 Author Report Share Posted February 28, 2015 11010-F5480...... L28E used through '81 11010-P9080...... L28ET '80.5 - '83 and all L28E after '81 Would you mind elaborating on this? I don't understand if the 2nd number is for a p90 head and why your including it. Quote Link to comment
datzenmike Posted February 28, 2015 Report Share Posted February 28, 2015 Would you mind elaborating on this? I don't understand if the 2nd number is for a p90 head and why your including it. 11041-P9080 is the L28ET head number 11010-P9080 is the L28ET block number 11010-F5480...... L28E used through '81 11010-P9080...... L28ET '80.5 - '83 and all L28E after '81 11010-F5480...... L28E used through '81 this is the block part number. Only the L28E used it and there were no turbo engines before 12 '80 or half way through the '81 model year. 11010-P9080...... L28ET '80.5 - '83 and all L28E after '81 When the turbo L28ET came out the old block number was superseded to P9080. Supersedence changed the part number, and there may be some minor changes/improvements, but it does allow earlier applications to use it. All L28ET blocks were P9080 but may not work on the earlier F5480 block. (this could be simply a threaded bolt hole needed for the turbo but not having any affect on the earlier L28E engine that could simply ignore it.) On the other hand it may not have any affect and simply be some metallurgical or casting improvemnet . Quote Link to comment
Stoffregen Motorsports Posted February 28, 2015 Report Share Posted February 28, 2015 It sounds like you need to do a visual inspection of your block and see if there are any visual differences between the block you have and another L28 block. I do know that you can build a turbo motor out of a standard L28 block, it will hold up, but I don't know if all the stock L28T components will physically bolt up to a non turbo block. Also, I'm sure you have the wiring and components for the rest of the motor somewhere. Take a stock of what components are there, like brackets, knock sensor, etc. As always, it will boil down to pics. Upload a couple pics and maybe we can help you with your problem. You could always call an engine building shop and ask them. I'm sure the guys at Rebello http://www.rebelloracing.com/ or Dando's http://www.autorepairfremontca.com/ will have the answers you're seeking. Quote Link to comment
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