L28 flat top pistons. Use your E31 head and a stock head gasket for a 10.
L28 flat top pistons 3 8. I tried a google search of the net and got nothing of interest and the manufacturer's catalogues, Arias, Wiseco, JE etc don't appear to show a list Apr 10, 2011 · looking for a good set of stock 86mm L28 flat tops having rods attached is convenient but not necessary. You can use some stock Nissan pistons, or if you have to bore out the block for a rebuild, the KA24DE pistons from about 1992+ are flat top and a 3mm overbore for the L28. Find many great new & used options and get the best deals for Datsun 280z 1975-79 L28 Piston Set 87mm Ross Forged Racing 1307 at the best online prices at eBay! Free shipping for many products! Oct 15, 2004 · To get high compression you either have to use the flat top pistons out of the 82 type "F54" bottom end with an early head N42/N47 or again usethese pistons with the P79/P90 head shaved . 1:1 compression, one with flat tops and the other with dished pistons. I know a lot of people say compression will be astronomical with one of the smaller combustion chamber heads (E31, '71-'72 E88, N42, N47) on an L28 with flat-tops, but it just ain't so. 040 87mm flat top pistons, as we have only one source in Oz and that's SWR. Designed with OE/OEM part number RY6134, this kit is made with top-quality materials for reliable and long-lasting performance. 5mm/2mm/4mm ring thicknesses These rings are specified for the USDM 1981 1982 1983 S130 280ZX flat top pistons 12010-P7905 & 12010-P7915 But they will also fit the Euro S130 12010-P8617 bump top pistons, exact years unknown 12033-P7910 12033P7910 12033-P7900 12038P7900 12033-P8610 Hello All, Before I go shopping across the pond, I wondered if there was anybody out there with a surplus set of 86mm flat top pistons for sale? Regards Phil Mar 2, 2014 · Hi, As the title said, I' m looking for L28 . 4:1 will work well with a cam about 280 degrees. Jun 29, 2006 · forged pistons for an L28 are expensive no matter where you get them. I'd say that setup would make 180-200WHP with the proper tune. Available in standard and . Mar 15, 2005 · Will installing flat top pistons in an engine increase the compression ratio? Why do I hear so many people talkng about flat top pistons and saying that they're so good? Sep 17, 2002 · If you build a flat top piston engine L28 with a P79 head you will get 8. 0mm Apr 16, 2015 · Depends on how much piston valve clearance you need. (I can´t find the post) Here´s som info: HEADS ENGINES E31 E88 N42 N47 P79 L28 dished pistons 8. May 10, 2017 · Looking for a set of flat top pistons out of a 81-83 Datsun 280ZX 2. 8 So 10. 8 with low compression for turbo, use P90 head with dished pistons. 4 l28 flat-top pistons 10,8 10,4 10,4 10,4 8,8 /Fredrik Apr 3, 2002 · The UK cars with P90 heads have "flat-top" pistons to restore compression to normal for a 280ZX. Looking for some standard bore, flat top pistons. And a ‘few’ custom things from us :) Next week will get it started, base tune - and off it goes to Germany. 0mm 1. 040" oversize. Last night, I noticed the skirt on one of the pistons has a crack so that trashes that piston. I originally intended to rebuild it completely stock, but I'm wondering if there's mild modifications that I can make to it to get a bit more power out of it if I'm rebuilding it anyways. Designed with OE/OEM part number RY6134, this kit is made with top-quality m Mar 16, 2001 · The larger combustion chamber volume heads (P79, P90, P90a (aka P99)) offer pretty weak compression even with flat-top pistons, 8. All you need is the correct bore diameter to match your L20B. Feb 3, 2007 · Hi, Have searched L28 Pistons without joy. We are running a 77 280 that was free to good home. Jun 30, 2023 · 6x NOS Nissan pistons and rings for Datsun Nissan L28 engines. it is 11. New set of 6 pistons with rings and pins for L20B engines. 1 liter, people bore L28s to 89mm all the time 3mm over, so 3mm over on a L26 is possible but should checked with sonic testing. NOS, never even removed from plastic. 025 mm above block deck . 5:1 compression, what setup is better, a smaller chamber and dish piston or larger chamber and flat top? Explore a wide range of our L28 Piston selection. Both run a . His a straight cast pistons and with todays technology, one or I would think hypereutectic pistons must be available so This piston kit includes 2 high quality Diamond pistons, 2 sets of Total seal piston rings. All I can find are ITM piston. We have personally tested these high performance cast pistons in a L20b and they perform better than other brands. (The one on the right in the pic - borrowed from a hybridz. 08:1 ratio, which from what I've gather will make a fine dail Dec 18, 2016 · I also would like to make use of the flat top piston block I have, as well as the N42 head. 020" oversize piston rings = 86. 020 oversized flat top piston. L28, Flat top pistons, P90 head, Steve Bonk . L28 Bore size 87mm, Flat top piston set supplied complete with rings, pins and clips Manufactured to order in 4 weeks. Repco only has dish pistons. Jun 27, 2019 · I was wondering what compression I’d get if I were put a u67 head on a l20b block bored 1mm over with l28 flat top pistons, thanks. Add to Cart $1,496. 4:1) and you should be able to run enough boost to get you in the 300 wheel HP range with out forged pistons. Local to the PNW (Portland OR) would be great, but not necessary. 0mm oversize). 2mm 1. the way I know is because I stripped and rebuilt that L28! The N42/F54 block and N42 head combo comes with dished pistons. I ended up paying about $50 MORE for flat-tops with rings! Norm K Feb 10, 2021 · So I was planning on putting in +40 thou flat top pistons to increase the compression ratio. A flat top piston L28 engine came with the P79 head and had 8. Datsun L24-L26-L28 High Compression Domed Pistons with Valve Pockets. 10" ) gives a CR of 10. Will probably Aug 30, 2016 · I just ordered a camshaft from Isky and the fellow I spoke to on the phone seemed very sure that the . Bot VerificationVerifying that you are not a robot Aug 27, 2025 · Item description from the seller Nissan, Datsun 240z, 280z, L18, L20, L-Series Pistons 86mm 87mm Flat Top Pistons For L-Series Engines. 540 lift, 270 duration cam would not make contact with the flat top pistons I am running in my F54 block. I took my block and head into Lesco (engine shop) and Stephen (the mechanic) said my head is not too good? I am doing the L28, N42 head, flat top piston set up, and from what I've learned here it is a great set up, proved a correct combo by Rebelo. 460 cam, Zstory headers, EMU classic ecu. The main difference between pistons in the L series is weather or not they are flat top or dished. 040 overbore sizes. JE 2618 Custom Forged Piston Set. You can have my dished ones if you want them and the N42 head as well off the same engine. Flat Forged L28 pistons w/ valve relief pockets Different Bore & Pin height Sizes Available 87mm/88mm-88. 025mm ( -. All 4 and 6 cylinder L series have the same distance from the center of the piston pin to the top of the piston. . 7 to 8. Oct 9, 2009 · I have done a L24 block bored up from 83MM to 86MM and put L28 flat top pistons, L28 crank, and rods with E88 (1971-72 type). 0 liter engine the same way you will get 9. 1L build, once i get my Z back on the road I plan to build a nice mild L28 with no luck at finding new flat top pistons. This is also what I plan to do. I brought the piston to be relieved up to TDC, taped off completely around the piston Jun 7, 2001 · L24 pistons are same only flat top. N42 L28 block, L24 connecting rod, N47 head, L28 Dished pistons, 1 mm head gasket The compression ratio on 1. Available in standard, . This is a set of 6 pistons, only way they come so you will have two extra pistons. I've read a lot about the flat tops and a N42 head and this combo will detonate easy. In very simplistic terms, if you want a 2. Is the MN47 head the same head that came on the N42 280z block? By using the Lengine caluclator the N47 flat top L28 yields a 10. 2mm head gasket?? not sure if thats Mar 29, 2005 · A bunch of people on this site (myself included) have had good results with the L28 simply using a combination of flat top pistons (you can get them in overbored sizes for increased displacement) and head work to attain compression ratios around 10:1. 8L L6. I'll Mar 8, 1999 · Here's what I came up with: L28 block, L24 crank and rods, 280zx flat top pistons, and an E88 head that has been re-worked but not shaved. Where in Australia do I buy these? A local engine builder quotes just over $200 the set if he builds my engine for me. I wanted to know if anybody has done this and if there were any issues with pston interference, and if the pistons had to be notched with valve reliefs Sep 15, 2003 · 1. SEE OTHER LISTINGS FOR DISHED OR FLAT TOP PISTONS. May 3, 2011 · I am looking for a set of flat top pistons for a mild street L28 build. 020 or 0. 030" oversize. This meens that Nissan does not have Flat Nov 13, 2002 · 240Z, 260Z, 280Z (S30) Forums - compression ratios - Someone was wondering about compression ratios. I have an L28 to rebuild. Jun 1, 2013 · Dish VS Flat Top by 340king » Sat Jun 01, 2013 2:54 pm I did a quick search and didn't find exactly what I was looking for about the two piston types. 5mm 1. So I now ask the question, Where do you guys buy L28 plus . Sep 9, 2005 · Yes, it will require high octane fuel if you use any other head than a P79 or P90. The cylinders are bored . The ultimate choice in engine setup and L-Series engine performance! SPECIFICATIONS:Manufacturi Descriptions: Forged racing piston set by Kameari For Nissan L24 ~ L28 engines Two piston types available with different valve recesses: A Type / B Type Race spec high compression pistons Comes with piston rings, piston pins, and clips Lightweight pin Pin diameter and length: 21mm x 46mm Pin height: 28mm Piston ring thickness: 1. New pistons with wrist pins and rings. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Anyone know of a second hand L28 with flat top pistons lying around?! Or a set of pistons but i dont want to spend £700 on forged ones. I have cut 1. Shop now for fast shipping and easy returns! May 14, 2007 · I need a little help understanding. Now I am worried that with head being skimmed if I were to use flat top pistons the compression ratio would be to high and I could risk detonation. In the drop down options box please choose the CH and the bore. You could might be able to run lower octane fuel with a L28 flat top engine and N47/N42/E88 head if a cam with 280+ degrees of duration is used. Spend the money you would have spent on the pistons on a great IC and Aftermarket FI computer (like meggasquirt or halteck). Let me know what you have. Great Compression (10/1), Great Power 180 HP+. New set of 6 pistons with rings and pins for L28 engines 1981-83 Datsun 280ZX. Jan 13, 2006 · Most of the racing flat top pistons for L28 in the US have a higher pin height to work with the L24 rods. Feb 18, 2023 · Those with the dish might be for the turbo 280zx. *Fitment Note: These pistons can be installed in any L28 non-turbo block; however, care should be taken when changing piston design. Standard L20B bore is 85mm so if going over size get 1mm larger (86mm) L20B or Dec 12, 2009 · ok so. Thanks 87mm flat top pistons in N42/N47? Hey guys, I have a spare L28 (N42 block, N47 head) that I'm working to rebuild. 0mm) L28 Flat Top forged pistons? Have tried searching the forums, but the response was huge. 3 7. 5mm oversize) or 12010-P7917 (1. Nissan claims that the P7915# supersieds to P7917 and that supersieds back to P7915. Oct 23, 2016 · The 1975-80 L28 with dished pistons had 8. Even has original piston ring instruction manual. These pistons will fit in all L28 engines 1975-83, theonly difference is the 81-83 piston has different width rings on the top. 3 to 1 with flat tops. 36cc dish. Any help or Dec 3, 2009 · Stock bore and stroke flat top piston (late) L28 E31 head (unported but cleaned up) with larger 280Z valves Colt cam - 510 lift 280 duration advertised Nissan Motorsport? header 2. 8L Rebuilt Engine 240z 260z 280z 280zx F54 Block N42 Cylinder Head ISKY Cam Flat Top Pistons By JLuis February 5, 2024 in Parts for Sale May 1, 2025 · 1,127 likes, 31 comments - dcw_classic on May 1, 2025: "4th L series build for this year. Redesigned to have the best combination of performance, durability and ultra light weight for high performance race engines. Aug 8, 2016 · Hi all, So I've found out my motor is an L28 with the F54 block, P90a Head and flattop pistons. 9. Mar 13, 2006 · I've seen Jim claim that the MN47 head yields too much compression for a California pump gas flat top L28. Just my two cents. All pistons were cast Aluminum with 2 compression rings and one oil ring. 4 Big End Bore 53 Big End Thickness 26. If you build a 3. 6 to 1 compression Engine runs very strong up to 7000 RPM. In MY opinion, the best/easiest setup is the 280ZX flat-top piston bottom end with an N42 (or N47, or big-valved '71-'72 E88) cylinder head. I currently have 86mm pressed pin and rods . Feb 14, 2012 · I daily drove a 71 wagon with an L20b with L28 flat top pistons, racer brown cam (forgot specs), and A87 peanut chamber head, twin SUs, on 93 octane. New set of Ross Racing forged flat top pistons for 87mm bore. L18 have the same pin height, a 85mm bore and a 4. Apr 19, 2014 · If boring it to 87mm and going with the flat-top ZX pistons (or even the 240sx ones) is the better way to go, I'll go that route. Backing of timing will "solve" this but at a cost: less HP and to Feb 5, 2024 · Datsun L28 2. 4:1. . The kit includes a piston ring set, wrist pin, and all necessary components for a seamless installation. 1mm The rings are NLA, but we have some Datsun / Nissan 280Z normally aspirated forged piston set. 8 if its possible to machine the piston end of the rod to 22mm from 21mm i could use the l20b crank. I used the old hotrodders method. 5mm / . Find top brands, exclusive offers, and unbeatable prices on eBay. If you plan on keeping the stock cam then use a P79 head with a flat top motor (stock 81 to 83 F54) and make 9:1 cr. SR20DE flat top pistons = 86mm bore pin height is 32mm but the wrist pin is 22mm Z22E rods Length 149. The Nissan Part Number is 12010-P7915(0. is 10. Set of 6 pistons with pins and rings. Now I'm trying to get 1 or 2 more pistons. Sep 1, 2014 · Hi everyone - My new L28 has these pistons with a raised circular dome on them. Oct 19, 2000 · I need some 07/80 to 83 Datsun/Nissan Flat Top pistons for an L28 280ZX motor. Aug 11, 2014 · I need an inexpensive set of standard bore L28 flat top pistons. N42 Head Includes: Used Stock Polished Cam And Resurfaced Rocker Arms & Lash Pads. I've heard of this being done before many times but I don't know how well it works. S. This should be good for a 40-50HP gain. 040 (1mm) oversize pistons for 81-83 Non-Turbo engines and are similar in design as well. If you don't know about Chumpcar, it is real racing, with REAL cheap cars. Use your E31 head and a stock head gasket for a 10. Can someone provide me a part # for the flat tops? Or what engine the flat top pistons are from? Also, what is the compression ratio difference between the dished and flat Jan 6, 2004 · Anyone know a good source for cast L28 flat top pistons besides Nissan? I'm looking for a 0. I used a different CR calculator that does allow deck height to be adjusted, and setting it at -. What I think I should end up with is a quick revving engine with great low end tourqe, and fairly high compression. 5" exhaust 45mm Webbers recurved 280ZX distributor 10. Is there a piston com Feb 5, 2009 · Find ANY L28 short block, rebuild it using a set of ITM flat top pistons. Use the L28 rods and crank. Seems like an odd combination, anyone know what this combination would be good for? Oct 20, 2015 · After reading through numerous threads, I stuck with dished pistons vs flat top (recently rebuilt my l28 n42/n42). 3:1 compression by swapping heads? That's very high compression for that open chamber head design. That was a few years ago. 040 quench. 030 pistons vs L28 flat top 86mm for budget rebuild By mccuistion August 23, 2018 in Engine Mar 4, 2024 · This engine piston kit from ITM Engine Components is the perfect replacement for your 75-83 Nissan 280z/zx 2. 3:1 compression. Mar 10, 2012 · Hey guys, putting together an L28 engine for a Chumpcar. Combine with some porting/polishing work and an appropriate cam and you've got yourself a decent engine. Beside L28s are very easy to come by and the money you spend to turn a L26 into a L28 could be used to turn a L28 into a bad *** sreaming little motor Dec 31, 2022 · Based on your stated requirements, I'll suggest stock L28 rods, L28 flat top pistons (oversized if you desire) which will then give you more room in the budget for stuff that will make a much bigger improvement. Whether you're restoring your vintage Nissan Among the many piston kits available from Kameari these are the top of the line racing spec series. 9:1. My question is should I go with forged dished pistons for a lower CR or go with forged flat tops? Jul 7, 2008 · Any L28 with stock flat top pistons and a N42 or N47 head will make around 10:1 cr. 8:1 cr. They are from a 4-cyl engine so you'll need six pistons and two ring sets of four. Stock replacement cast piston. We can make these pistons to any bore size specification please enquire. Any information on JE Forged Piston Set for Datsun L24-L28 Engines. *Check out our tapered ring compressor PT# 800-2133 for easy piston The 87 mm flat-top design means they match the diameter of the factory Nissan . PISTONS The F54 motors with P79 heads (1981-83) have flat-top aluminum pistons. However with a stock cam, 10:1 cr will detonate itself to death. Also what about a 3. I think the regular zx L28 are flattop. 2 wrist pins and 4 pin clips. Pistons are 8. He imports them from Japan. If bored it would be closer to 9:1 cr. 3:1 to 8. 5:1. Sep 21, 2014 · Wanted (WTB / WTT) - WTB/T L28 flat top pistons - Looking for a set of stock flat top pistons for my rebuild. Mar 17, 2015 · I'm working on an L28 with an N42 block and N42 head. I'm swapping flat top pistons from an F54 block I got in my parts car (no head). 4:1 Mar 12, 2008 · Okay Dokey. The 'P86' is the part number prefix which identifies the original application. 4th L series build for this year. They are so rare Dec 16, 2008 · In a previous zed I had a F54 block and P90 head with flat top pistons. 8:1. YMMV, but the rest of the engine needs to be equipped to handle the increase in compression. 080" shave to P79/P90 head and putting it onto a stock flat-top L28 short block, with either a 1mm or stock head gasket. The dished ones would be closer to the L20B piston. 8 with high compression, use N42 head with flat-top late pistons (great for normally apsirated) and if you want a 2. Thanks, Pete Aug 27, 2025 · This engine piston kit from ITM Engine Components is the perfect replacement for your 1981-1983 Nissan 280ZX 2. from Nissan Motorsports, but were OE on some models of the European 280ZX's May 23, 2018 · Hi all, In short, can you run flat top pistons (whether it is standard 86mm bore or oversized at 87/87. I dont know this brand and I want to be sure of what I buy first, since the engin will be floored very, v Feb 29, 2008 · Is there anywhere in the US that supplies 87mm bore (+1. like some head work and a mild cam. Aug 2, 2016 · Was recently reading an article that the L28 Flat top pistons are . In a limited carburetion class mandated to run no more than 9. 03, is that too high for a streetable car? The head does have a performance cam in it. Dec 26, 2009 · Where can I buY L28 flat top pistons? Ive searched all over google and havnt found any sets that specify them as flat top pistons. Non-turbo 1981-83 with flat tops and the larger cc head had 8. As I, perhaps mistakenly, understand it, it's not just lift that makes contact, but duration and lobe separation which both alter where the piston will be in relation to the valve. Product Description THIS ITEM IS NLA NO LONGER AVAILABLE One L6 set of L28 piston rings Standard size = 86. 5mm) in their N42 equipped head on their L28? No head work and a stock/mild cam? The general consensus is that no, you can't due to poor head design resulting in pre-ignition - however, a lot of Oct 28, 2006 · I want to replace my original dished pistons with flat top pistons in my '79. I believe these are +1MM oversize. using a 1. Need pistons to be cheap, or donate to the cause. Jul 16, 2017 · It has been stated by some forum members that if you run and L28 with flat top pistons with an N42 head and standard petrol that you may experience some knocking. Non-USA bump-top pistons for the L28 L28E engines These were only available in the U. 84 More Info Product Description One L6 set of L28 piston rings . These are rare, desirable flat top pistons. And a ‘few’ custom things from Jan 24, 2019 · I'm converting my L28 to a turbo and using the P90 head with the stock 'B' grind cam. I have a Megasquirt that I will be using for this engine. These pistons will fit in all L28 engines 1975-83 , the only difference is the 81-83 piston has different width rings on the top. After my terrible luck with my 3. I put later cam with oil passage by the way. 8:1 compression depending on the cylinder head. But its missing its cam and towers. However, with dished pistons, compression is about 8. 08 and on 2. The block was pretty rusty, but I did get the pistons out. These are the later 280ZX pistons in a true flat top for higher compression in your l20B 4-cylinder. Just joined today. Apr 4, 2003 · The 1981-83 n/a 280zx engines already have flat top pistons. 020" and . I currently have the block torn down and I figured while I'm in there I was going to go with all ARP hardware and also buy forged pistons (I'm looking at JEs). I need 40 thou oversize flat top pistons for the rebore/hone. Apr 19, 2006 · Okay Jon and others, I'm a bit confused. 2mm 2. Without the eyebrow reliefs I was getting slight valve marking on the piston crowns. 5 Piston End Bore 21 Piston End Thickness 25. Flat or Dish with Valve Pockets. Mar 14, 2003 · I'm planning on doing a . 8:1 and if you shave it a bit 9:1 is possible. Let's assume you have two engines with 10. 06mm head gasket, Haltech EFI and a Garret GT3271 turbo, wastegate minimum pressure at 10psi (will be left there) the Ozdat engine design utility indicates that my comp ratio will be 10. Nov 10, 2000 · As for using on an L28, forget it if you have flat-top pistons because you will have 11:1 compression or more and pump gas will not work. New set of 6 pistons with rings and pins for L28 engines1981-83 Datsun 280ZX. I know the head, block, and pistons are in great shape and would like to use them. I also need a set of headers. 8L engine. 2:1 CR. May 14, 2013 · As the title says, looking to get my hands on some late L28 N/A flat-top pistons and con rods, preferably still attached to each other and in working order (after I clean them up and put some rings on them). If you're just thinking cast cheapies, then this wouldn't apply. These lightweight pistons will wake up your old tired L-series engine and make it rev up quick. Aug 12, 2016 · I have a set of flat top pistons that I plan on putting in a L28 JDM block that I have. -—————————— #240z #260z #280z #datsun #nissan #fairladyz #L28 #japan #jdm #restoration Find many great new & used options and get the best deals for Nissan L16 / L28 Pistons Flat Top Wiseco Piston Kit Part# Asc-03611 Rings at the best online prices at eBay! Free shipping for many products! Jun 14, 2006 · Re: Get THESE flat top pistons Get these pistons! I would have BUT I didn't know the exact size I would need. All other L28 engines/head combos (N42,N47,P90, P90a) came with dished pistons. Jan 14, 2015 · Hey guys, I'm looking for some l28 flat top pistons 86 mm Please message me if you have anything some in good condition or new New set of 6 pistons with rings and pins for L28, L28E and L28ET engines 1975-83 Datsun 280Z and 280ZX. True flat top for a higher compression. 6 8. Thanks a lot guys! Nov 23, 2008 · Hi there. Oct 28, 2011 · My combo is a N42 head on a L28 block, flat top pistons and a Nismo MLS . 080" with the cam towers shimmed and use the longer N47 valves. 5mm/2mm/4mm ring thicknesses These rings are specified for the Euro S130 12010-P8615 bump top pistons, exact years unknown But they will also fit the USDM 1981 1982 1983 S130 280ZX flat top pistons 12010-P7905 & 12010-P7915 These Genuine Nissan piston rings are NLA from Nissan 12036P7900 12036P7910 What options do I have I’m looking to buy a set of flat top pistons with floating pins . I am building an NA L28 and I want the flat top piston for higher compression ratio. Thanks for looking. THESE PISTONS ARE NLA NO LONGER AVAILABLE SET OF 6 (SIX) Flat top pistons for the L28 L28E engines These were OE on the 1981 1982 1983 non-turbo USDM 280ZX S130 Size is 86mm, which is STD for the L28, but they can be used in many other L-series JE 2618 Custom Forged Piston Set. 5mm/ 89mm Allow 5 business days for shipping You Will Be Emailed To Confirm Piston Height IF CONNECTING RODS ARE REQUIRED PLEASE CONTACT US **THESE PARTS ARE FOR OFF ROAD USE ONLY** SET OF 6 (SIX) Flat top pistons for the L28 L28E engines These were OE on the 1981 1982 1983 non-turbo USDM 280ZX S130 Size is 86mm, which is STD for the L28, but they can be used in many other L-series engines with the proper calculations and machine work Pin height is the same as all other L engines, 38. org thread) Does anyone know what volume the raised dome has? I need to figure out if it's significant in compression ratio considerations. Why is the one with the flat top's better? Dec 18, 2023 · They are stock Nissan 'P86' L28 cast 'flat top' pistons. N42 L28 block, L28 connecting rod, N47 head, L28 crank, L28 flat top pistons, 1 mm head gasket or 2. This is a true flat top piston. 020" oversize 280ZX which is a L20B (85mm bore) will need to be bored 1mm oversize to use the stock 280ZX (86mm bore) piston In addition there isn't a special "turbo block", all Datsun did to make the F54 a turbo motor was to replace the flattop pistons with dished ones to lower compression and add a turbo head. 2 liter engine the same way you will get 9. 5mm eyebrows into the stock l28 flat tops that was required for a 530 lift cam & a highly shaved N42 using a 1mm head gasket. Just keep the stock compression ratio (7. The hea Piston Differences Like the heads and blocks there were many different pistons used in the L Series engines. Good fuel economy (considering 45mm webbers and 4:38 Oct 17, 2002 · Sean, the first thing you need to do for an N/A L28 application is have flat-top pistons ('80?-'83 280ZX non-turbo). Aug 23, 2018 · L18 +. I was then told that the head needed to be skimmed 20 thou for it to be flat. I just want a responsive motor that isn't afraid climb, rather than a powerhouse. Piece of history! Part number Nissan 12010-P7917. JE Forged Piston Set for Datsun L24-L28 Engines. uqsr mdbyc pjiy hssuqkfr dko axh waqfmz cetfhi ghzhbs rjcp gpgg lhepbd olhc wzac nvlgpbh