flatcat19 Posted September 4, 2011 Report Share Posted September 4, 2011 So I was cleaning out the garage today... I knew they were there, just haven't given them much thought. Someone had an L18 in a box that I bought awhile ago. Disassembled. I also have a spare L16 short block. The L18, as a whole, are pretty beat. But, the rods, pistons, and crank appear to be in great shape. I've read a few things about people doing this-but no results. So who knows what? Being a starving student, this appeals me for the time being. Who can do the compression specs also? Quite a few combos to be made. Keep in mind, I have just the stock 210 head, and an A87 peanut head. L16 block, L18 crank, rods, pistons? L16 block, crank, rods, L18 pistons? I can even source some L20B pistons easily if compression of these combos are too high? Opinions? Thoughts? Numbers? Am I missing a combo, or something else? Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 L16 block and L18 everything else is just a L18. L18 and L20 pistons are the same* cept for teh L18 have a smaller dish. Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 But do this L18 block crank, L16 rods, Z20s pistons Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 L16 block and L18 everything else is just a L18. L18 and L20 pistons are the same* cept for teh L18 have a smaller dish. L18 rods and L16 rods are different. Creating a different size combustion chamber. Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 But do this L18 block crank, L16 rods, Z20s pistons Blocks fucked. Z20s pistons are made of 99% unobtainium. Quote Link to comment
I'm BLUE Posted September 4, 2011 Report Share Posted September 4, 2011 I think this may help ya ,,,, ---> http://community.ratsun.net/topic/996-jason-grey-info/ <--- :) Good reads ,,, enjoy man !!! Perfect Fall/Winter Project Too :cool: Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 L18 rods and L16 rods are different. Creating a different size combustion chamber. um, you said L16 block, L18 crank rods pistons... which equals L18. Note you will have to bore a L16 to accept L18 or L20 pistons Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 I think this may help ya ,,,, ---> http://community.rat...ason-grey-info/ <--- :) Good reads ,,, enjoy man !!! Perfect Fall/Winter Project Too :cool: No mention of L17 in there. I've read that so many times. I ask these questions cuz I have the parts. Starving student. With a discount at the machine shop. Yadidimean? Quote Link to comment
Guest 510kamikazifreak Posted September 4, 2011 Report Share Posted September 4, 2011 Can you source L24 pistons on the cheap? L16 Block,L16 rods,L24 pistons,A-87 head(closed) good little revers Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 um, you said L16 block, L18 crank rods pistons... which equals L18. Note you will have to bore a L16 to accept L18 or L20 pistons Touche... But L16 block, rods, crank and L18 pistons are indeed 1692cc. I didn't know how else to label the thread. Like I said...I've seen people say they were gonna do it, but they never said anything afterwards. Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 Can you source L24 pistons on the cheap? L16 Block,L16 rods,L24 pistons,A-87 head(closed) good little revers That just raises the CR? as the only difference is that the L24 pistons are that they are flat top. Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 Can you source L24 pistons on the cheap? L16 Block,L16 rods,L24 pistons,A-87 head(closed) good little revers Not right off hand. Comp numbers for this? I'm sure ebay will have some... And will also save on the machine work. Quote Link to comment
Guest 510kamikazifreak Posted September 4, 2011 Report Share Posted September 4, 2011 That just raises the CR? as the only difference is that the L24 pistons are that they are flat top. Its a tested proven "ole" school build.done several. They pull strong for itty bitty 16 :cool: Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 I can see the numbers of L16 block with L18 guts, and it appears to be a bit of a stroker motor. I couldn't complain of a little bit more torque. Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 Flatcat, try the Helix engine design thing. From Ozdat. Super easy to play around with. Though it seems slow right now. Quote Link to comment
Guest 510kamikazifreak Posted September 4, 2011 Report Share Posted September 4, 2011 Not right off hand. Comp numbers for this? I'm sure ebay will have some... And will also save on the machine work. going back say 15 years since the last one I built, if I remember correctly was 9.5 maybe 10 to. Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 I can see the numbers of L16 block with L18 guts, and it appears to be a bit of a stroker motor. I couldn't complain of a little bit more torque. How is this any different than a stock L18? Quote Link to comment
Z chopper Posted September 4, 2011 Report Share Posted September 4, 2011 Can you source L24 pistons on the cheap? L16 Block,L16 rods,L24 pistons,A-87 head(closed) good little revers That just raises the CR? as the only difference is that the L24 pistons are that they are flat top. then throw some SU carbs on and it would be close to an SSS engine, if I am not mistaken Quote Link to comment
Guest 510kamikazifreak Posted September 4, 2011 Report Share Posted September 4, 2011 then throw some SU carbs on and it would be close to an SSS engine, if I am not mistaken yep very close Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 http://www.ozdat.com/ozdatonline/enginedesign/ Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 How is this any different than a stock L18? Not sure. I just know the block i have has a big chip in it. Got to do something. Maybe it's L16 block and guts with L18 pistons that makes a L17. I'm spacey today. Worked on the Maxima during hottest part of the day. Who's got two thumbs and is tired as hell? This guy. Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 http://www.ozdat.com...e/enginedesign/ I've played with that. I don't get the static compression. It never spits out 9.5 to 1. Always some 1.xx number. Or I'm just doing it wrong. :D Quote Link to comment
Laecaon Posted September 4, 2011 Report Share Posted September 4, 2011 Here is one I am working on. CR is low. So I just need to bring that up a bit. Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 I'll go play with it a little more. Quote Link to comment
flatcat19 Posted September 4, 2011 Author Report Share Posted September 4, 2011 I'll go play with it a little more. Thats what she said. Quote Link to comment
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