L28 High Compression Pistons. 0mm Jul 23, 2003 · For a really stout and reliable 300hp+, you s

0mm Jul 23, 2003 · For a really stout and reliable 300hp+, you should consider going with forged pistons. 4mm EX4. 0:1 or higher. Jun 27, 2002 · can anyone recommend high rev kits for the l28 280zx or share some info on this as far as opinions on max rpm the engine can handle sets of parts or kits you have had a good experience with? May 23, 2004 · Step 1: What is Top Dead Center (TDC)? TDC is when a piston is at the top of its stroke. Jul 16, 2002 · It will most likely not rev as high so you will need to shift at lower RPMs. You could use used L28 if in good shape. 1L buildups, the 240sx piston, and the 720 truck piston, have compression heights of ~34. Check out the silvolite online catalog for possibilities of non-nissan piston swaps. It has not been Nov 5, 2017 · Compression can be a bit lower then expected, but as long as they are even that is better then if you had high compression with one outlier. ps. Forged pistons will give you a bit more of a buffer. 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. 5mm - L28 L30 L31 Part Number: Type A 89. 1mm. 56" cam on my 11:1 L28, and barely escape detonation with 27° of total advance on my triple weber setup. 080 (relatively cheap machining) and then you could shim the cam towers, run N series valves in it and you have a nice little engine. 8L N/A build is finished, paired with a 5-speed swap and a stand alone ECU and harness package. 2cc Rod Application: Kameari Rods Crankshaft: L28, LD28 Find Datsun parts for S30, Z Series, 240z, 260z, 280z, S130, 280zx, 510, 510 Wagon, 510 Coupe, Datsun Trucks, 520, 521, 620, 720, and 311 Fairlady Roadster. Whether you have an original 1981-1983 280ZX Turbo or are turbo swapping your S30, this forged piston and ring kit is a mandatory addition if you are setting your engine up for turbocharged high performance. im new to the whole turbo thing. only advance, Pro master coil, '72 SU's, 2. 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. DCOE 40s triple weber carbs. 6L Diamond Competition Series Pistons and Manley H-Beam Connecting Rods combination is the ultimate combination up to 1000 HP. 5cc Dish. 250†they WOULD contact the cylinder head as your gasket is not ¼†thick. - at Os技研. 080" over pretty easily, but finding replacement pistons bigger than . 5mm pin height, L24 rods, 133mm rod length. , requiring shorted rod lengths or shorter stroke (L24 crank) in order to use them, and both have pin-fit problems. . 1mm=0. Get Z22S pistons, 35. i started looking at engine combos for a higher revving motor than the L28, but bigger than an L24, just for kicks for now. 0L 89mm and Toyota 20R 89mm pistons leave you with far too positive deck ht. 8:1 compression depending on the cylinder head. 0 range. Sep 12, 2003 · carbon buildup on the piston tops is a common cause of a high compression reading. If not and it is stock, i think i'll give the flat tops a shot and call up delta cams to see what they recommend. 3 V Specific Valve Reliefs are standard for High Lift Camshafts. 7mm Valve Relief Volume: 3. The early L28 block is stamped N42 to the right of the driver side motor mount while the later block is a F54 with "siamesed" cylinder bores. 2mm 2. Set of 6 pistons with pins and rings. The piston compression height of the stock 280 piston is ~38. 85:1 compression ratio. 3:1 to 8. The car has an L28 with an E31 head and the cam is a Schneider 280* duration. decarbonizing is the fix in that instance. It stands as the ultimate tuning unit, designed to achieve high- performance evolution for classic cars such as the "Hakosuka" Skyline and the S30 Fairlady Z. Dished pistons are usually used to lower emissions. 1mm Piston ring thickness : 1. Mar 13, 2015 · Have l20b, plan to use a w58 peanut head with l28 pistons. Aug 29, 2003 · Here's my setup: High compression L28 with modded P90 head, crane 262/272 cam, euro damper, Mallory unilte distributor with mech. Built upon the modified L28 block, it features specialized components including a full-counterweight crankshaft, connecting rods, pistons, and an aluminum oil pan. Mar 21, 2016 · I understand Kameari offers a stroker kit for a 3. 2mm x 1. CR is in the 9. The breathing cycle of a four stroke motor: Piston at Top Dead Center (TDC) with Intake Valve Open, piston down stroke, sucks in fuel from Intake Valve (Intake Stroke). 0mm Exhaust: 5. day to day, etc. Sep 20, 2001 · I have my choice of two different blocks- one L28 flattop pistons one L28 (turbo) dished pistons Can someone give me the CR for either set of pistons on this E88 head? If it's too high, I'll just stick with the P79 that is on the flattop block right now. Doing my own calculations I have come up 8. 5 inch exhaust with header, and 4. Custom pistons are pretty common these days and can be purchased for about $800-$1000. Compression ratio needs to be at a minimum of 11. 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. Especially on a "newly rebuilt engine", don't trust anyones work completely. PISTONS The F54 motors with P79 heads (1981-83) have flat-top aluminum pistons. Jul 31, 2007 · Use deep dished L20B pistons in a otherwize stock L18 for 7. L28 BLOCK CHOICE According to Nissan, there were 2 different L28 blocks, '75-80, and '81-83. 9 liter, shaved L28 pistons, LD28 crank; John's is a fuel injected 3. 4 Cylinder JE Custom Forged Piston Set - ALL JE Forged Piston Sets are Supplied complete with Pins Locs and JE ProSeal Rings Please note: ALL JE Custom Pistons take 4-6 weeks to make + Shipping time Learn More Add to Cart $1,095. May 18, 2014 · He states that it is a good cam to use with the valves, pistons and rods as supplied by him and gives very smooth acceleration from low rpm all the way up to 8000 rpm. 040" oversize. What's in Sep 27, 2006 · FS: 240Z,260Z,280Z & 280ZX (70-83) - FORGED dish 8:1 turbo pistons for Datsun/Nissan L28 - I have a brand new set of 6 Cosworth . S30 Carburetor Information S30 Head Specs During the 8 year run of the S30 chassis there were a few major engine changes made. 00 Add to Wishlist Add to Compare Sep 1, 2014 · Hi everyone - My new L28 has these pistons with a raised circular dome on them. I can buy an L28 engine on the cheap, but it is from a series one 280zx, with an N47 head and dished pistons. 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** Dec 18, 2016 · If it is high compression than expected, I'll go with dished pistons and aim for compression in the 9's. Datsun / Nissan 280Z normally aspirated forged piston set. 025†inch, which is perfectly normal. I bet your car will be faster with the L28 engine and P79 head. These will yield an 8:1 compression ratio on an otherwise stock l28. 10/1 Compression with flat top pistons. 1mm Piston Ring Thickness: 1. The Nissan Part Number is 12010-P7917 (which I believe to be 1. take a few readings and average 'em out. 48 lift, 10. Product Information: Part number: #10-KAME-310-885 ~ 10-KAME-310-895 Make/model: L28 Descriptions: Forged street piston set by Kameari For Nissan L28 3. Sep 19, 2006 · COMMENTS: PISTONS The F54 motors with P79 heads ('81-83) have flat-top pistons. May 8, 2008 · The easiest and cheapest way to add compression is to install a L28 block with stock flat top pistons under a 240 head. Thanks New set of 6 pistons with rings and pins for L28 engines 1981-83 Datsun 280ZX. Non-turbo 1981-83 with flat tops and the larger cc head had 8. 020†-. Jul 8, 2004 · KA24 and Z24 pistons leave you with negative deck ht. We've got y May 21, 2007 · i just bought my first zee and was wondering what a good setup is to run a high compression non-turbo L28 and what are the best components to use>?? Sep 14, 2010 · NZeder: From what i've read cast pistons are too weak for high rpm, or is that just factory cast pistons? And for $1100USD, its pretty much the same price as Peter MC's custom forged slugs. Also includes a 500L/300D Camshaft Kit. 63:1 compression ratio (using open chambered head) or bore +1mm and use dished 280Z pistons for 7. Shaving the head approximately 1mm will bring you to 9. 11 rear. 8mm Weight for piston alone: Sep 12, 2016 · I have seen the combination L28 + L24 rods + 89mm KA24 pistons in a few threads (and on some other web forums), but everywhere it was just described as a possible option or as a "plan for doing a build". My question hasnt really been answered though. 5mm above the deck. 4:1. Looks like its time for new piston rings, which is a shame because they were only done 4 years ago. We can make these pistons to any bore size specification please enquire. Whether you have an original 1981-1983 280ZX Non-Turbo or are L28 swapping your S30, this forged piston and ring kit is a mandatory addition if you are setting your engine up for naturally aspirated high performance. 2mm EX4. Sep 15, 2023 · A rebuild can use stock components and oversized pistons, while a custom engine mixes and matches cranks, rods, pistons, etc. The rotating assembly was balanced. Nov 8, 2005 · Hey guys, whats the stock compression ratio of a F54 block with P79 head? I have read in various places everything from 8. Product: Forged Street Piston Kit L28 to L30 - 89mm L28 Rods Part Num: L28 to L30 - 89mm L28 Rods SPECIFICATIONS: Manufacturing Method: Forged Type: High Compression Bore (mm): 89 Weight (g): 365 Pin Diameter x Length: 21 x 56mm Pin Height: 38. Problem solved. Feb 10, 2021 · 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. Product Information: Part number: #10-KAME-314-860 Make/model: L24 L26 L28 Descriptions: Forged piston set by Kameari High compression pistons Comes with piston rings, piston pins, and clips Pin diameter and length: 21mm x 50mm Pin height: 38. The main difference between pistons in the L series is weather or not they are flat top or dished. Use the arrows to Click through the slide shows below for lots of pics of some of our recent engine building projects. We speak English and all email queries are responded to promptly! Kameari Light Weight Street Piston Kit STD Con-Rod - L28 86mm Oversize. 3:1 compression. Stock 79mm L28 crankshaft. Your proposed setup won't work, as even with . If you bought an engine with flat top pistons it would have a P79, which could be shaved . I am using the Schneider springs as recommended for the high lift cam. Jan 7, 2005 · The HKS +2mm head gasket can also be used to give ultra-low compression to run more boost - expensive BTW! L28 engine configuration with dished pistons and P90 = 7. 030 over forged pistons for sale. L28,dished and P90 with HKS +2mm = 7. 5mm or above then what's the cheapest forged Aug 18, 2002 · Also if you want more torque and power get you a stoker kit that includes new lightweight long piston rods, a lightweight crankshaft and pistons of a high compression. 2mm x 2. I will be using a OEM head gasket and stock camshaft. Available in standard and . Aug 5, 2018 · So the theory is that the boost pressure inside the turbine is higher than the pressure inside the manifold because of the drop, correct? So as an arbitrary number, the manifold pressure is 8 but the turbo is actually boosting around 10 or so, which would be enough to force the wastegate open. All Out L28 Big Bore Long Rod Triple DCOE Build Datsun L20B Turbo Build Datsun 280Z Big Bore Long Rod Street engine project. On an over bored L20B that's 10. 9cc dish and have them machined in a lathe so that the dish rim is just machined away and it has been tuned into a flat-top with an altered comp ht, enough to allow using a 133mm rod from an L24 or L16. 040 dished L28 pistons with a Are you rebuilding your Datsun L-series engine for your Datsun Z Car? Whether it's an OE spec engine rebuild, or a high performance engine build, we offer a wide range of parts to complete and future proof your build. 8-1. Using them on a dished piston L28 ('75-78) will yield 7. 38:1 compression ratio For comparison, the same configuration with N42 head = 8. 5mm Valve Relief Volume Home / Performance Brands / Performance Engine Components. 11 compression Z20 pistons are the wrong pin height. Oct 23, 2016 · The 1975-80 L28 with dished pistons had 8. 5 x 2. 6cc, -5cc or -9. I know the cr will be high to use regular gas ( like 85 octane ) I believe the dish on a l28 is 10. , and dished-piston compression ratios, BMW 3. The 4. 8mm Weight for piston alone: 311g Valve recess: Intake: 5. So be careful setting up your engine, and take it easy until you know your not too lean! But remember this P79/P90 head mod is meant for flattop piston L28 motors only. 8mm Valve Relief Depth: IN4. Step 2: How to Find TDC. But, will it be worth the effort? Will this really give me a definate and noticable power upgrade? Will the higher CR wear out my engine faster? Jul 8, 2004 · KA24 and Z24 pistons leave you with negative deck ht. Brand: Kameari Product: Cast Racing Piston Kit Type A 89. Pistons, Rods, Etc. New set of 6 pistons with rings and pins for L28 engines 1975-79 Datsun 280Z. In a performance engine, flattop pistons create a higher-quench mixture and allow for higher performance combustion chambers. This deal includes pins and rings, and would be awesome for someone building a high-compression L16 / L18 / L20 beast. Descriptions: Forged street piston set by Kameari For Nissan L28 3. 0mm New set of Ross Racing forged flat top pistons for 87mm bore. Jul 31, 2012 · Nissan pistons are metric. 5k rpm (although I don’t often go over that). 3:1 compression by swapping heads? That's very high compression for that open chamber head design. 6, zero deck clearance, and a . Pre-detonation can kill a turbo engine by melting pistons and breaking ring lands in under a second. Intake Valve closes and piston travels up (Compression Stroke), fuel is compressed and spark plug fires before piston reaches TDC again. For now we're only concerned with #1 piston. 5mm 2. 049" Jul 7, 2008 · Any L28 with stock flat top pistons and a N42 or N47 head will make around 10:1 cr. 5 x 1. 9 compared to stock l20b 11. 5mm thick Z22E piston compression rings are thinner than 2. 26 dish. 020" oversize. L28 Bore size 87mm, Flat top piston set supplied complete with rings, pins and clips Manufactured to order in 4 weeks. Cut the block to fit the pistons AFTER YOU HAVE THE PISTONS IN HAND! This configuration will give you pretty close to the stock configuration. Just make sure the L28 block does has the flat top pistons and not the dish pistons by mistake. BMW S14B23 and S14B25 Custom JE Forged Piston Set. HOW MUCH HORSEPOWER DOES THIS PRODUCE? Well, racing lore says you get about 10hp for every point increase over stock compression. 0L engine with L28 connecting rods High compression Comes with piston rings, piston pins, and clips Pin diameter and length: 21mm x 50mm Pin height: 38. 023†Kameari Cast Racing Piston Kit Type B 89mm - L28 L30 L31. All other L28 motors (N42,N47,P90, P90a) came with dished pistons. Coatings, Wrist Pin Upgrades, Piston Rings, and Rod Bearings are also available! Feb 18, 2023 · 40 over is 1mm or 86mm or same as the L28 pistons. (The one on the right in the pic - borrowed from a hybridz. 1 liter, shaved/notched KA24 pistons, LD28 crank; Norm's is a modified SU carb 2. 50mm Piston ring thickness: 1. True flat top for a higher compression. Available in standard, . Here is a picture of the OE flat top pistons protruding above the deck surface, . 5-1. 020" and . 0L engine using L20 (6-cylinder) connecting rods High compression Comes with piston rings, pins, and clips Pin diameter and length: 21mm x 50mm Pin height: 33. 5mm x 1. Dec 11, 2008 · VG30ET (turbo) engines use larger non-interchangeable wristpins. 0mm oversize). 2 x 1. 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** Nov 5, 2017 · Compression can be a bit lower then expected, but as long as they are even that is better then if you had high compression with one outlier. 5:1, which is as high as you can go on pump fuel IF you run the 275-280* cam. Apr 22, 2010 · Hi guys ive tried searching but i couldnt really find the answer i was looking for. Description New set of 6 pistons with rings and pins for L28, L28E and L28ET engines 1975-83 Datsun 280Z and 280ZX. The L24 crank and rod setup is something that seems interesting, but I am kind of confused regarding the size and positioning of things. 040" over will be difficult. is it necessary to do this and what is the reasoni But remember this P79/P90 head mod is meant for flattop piston L28 motors only. 385", stroke 3. Townsley's awesome 73' 240z build Sep 12, 2003 · carbon buildup on the piston tops is a common cause of a high compression reading. 039", approximately. I was hoping to find one cylinder low but they all are in the same Aug 15, 2019 · If I was to build a mild road going L28 and needed new pistons, what are my options? If I also need to bore the block anyway then what's the biggest size you can take the block out to and still get cast pistons? If I was going to take it out to 87. Flat Forged L28 pistons w/ valve relief pockets Different Bore & Pin height Sizes Available 87mm/88mm-88. Rebello seems to offer a few different options as well. Too short. Granted when your compression gets really low you have to consider there may be something systematically wrong. compression readings will vary with other conditions. 11", combustion chamber CC of 53. 5:1 compression and stock L28 pistons (F54 block) revs very happily to over 6. / Forged Pistons and Piston Rings / JE Pistons / JE CUSTOM MADE Forged Pistons / JE Forged Piston Set for Datsun L24-L28 Engines. This trick increases the rod/ stroke and the compression ratio in a single step on a 75-78Z. An L20B can go . Feb 23, 2020 · Mine on a 270 degree cam with . Engine Builds Package or custom engines, dyno tuning available, pickup or shipped. Home / Performance Brands / Performance Engine Components. 5mm 1. 6L 3V Diamond Pistons are available in a -. In this case a cold engine with the throttle shut may be the culprit. I did a compression check and came up with 162lbs to 169lbs per cylinder. 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. Mar 1, 2011 · i have a L28 engine and a LD28 crank i was told this will make a 3litre with stock rods and pistons any one know ? Apr 20, 2025 · Explore the Nissan L28 engine's specs, configuration, oil requirements, and maintenance tips for optimal performance and longevity. 0 liter, forged pistons, L28 crank. All other L28 engines/head combos (N42,N47,P90, P90a) came with dished pistons. Call (925) 754-4871 for price quote. 5mm flat top pistons. However with a stock cam, 10:1 cr will detonate itself to death. 8 So 10. Pin diameter height, ring pack type & position, piston crown configuration. As to the compression ratio being too high, I agree that it is. 2 x 2. Stock head gasket. 5mm Manufacturing Method: Cast Type: High Compression Pin Diameter x Length: 21 x 65. If you use a dished L28, the compression will only be in the low 9s which won't be worth the trouble. from what ive read to change an l28 to an l28et requires some parts off the l28et from the US to lower the compression ratio. The two most common used pistons in 3. Head was milled just a little to flatten it out in a few spots. 1mm Piston ring Feb 1, 2022 · Our first high compression 2. Sorry for Aug 22, 2004 · I am having some oil burning or high hydrocarbons issues upon acceleration. 8:1 compression, the highest of the L28s. 5:1 compression. 5mm SPECIFICATIONS: Bore size: 89. Jun 27, 2002 · can anyone recommend high rev kits for the l28 280zx or share some info on this as far as opinions on max rpm the engine can handle sets of parts or kits you have had a good experience with? Apr 28, 2002 · I could get more compression by swapping the old N47 head onto the flattop L28 or I could do the shave/shim job that Bryan Little describes on his site. 5mm x 2. We speak English and all email queries are responded to promptly! Apr 10, 2013 · Here is a set of FOUR Nissan flat top pistons, which I believe are for an L28 280ZX motor. Makes around 10:1 cr and adds another 0. here is what i came up with: 9:1 compression0. Townsley's awesome 73' 240z build We are the Datsun L-Series experts. oh, and anyone have performance #s for Jan 31, 2001 · I have taken L28 pistons (75-78) with the 10. Need flattops or slightly domed for . 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. I have a 300/300 @ . Apr 14, 2017 · The N42 blocks have 10cc dished pistons to match the open-chamber head-you will work out to about 8. 29:1 CR Both with standard gasket. Electronic ignition. 5 mm. 3-1 to 8. 5mm Weight for piston alone: What kind of cylinder PSI/DCR are you getting for that compression ratio with a small cam? edit: Thanks for the downvote, but high compression L motors are super susceptible to ring land damage caused by detonation. 2mm Pin Height: 29mm Piston Ring Thickness: 1. org thread) Does anyone know what volume the raised dome has? I need to figure out if it's significant in compression ratio considerations. My question is can the rim of the l28 be machined down to lower cr or would it destroy the integerty o Dec 23, 2007 · I have started to lose compression and seriously blow some blue smoke. 5mm shaved off, the pistons will be ~1. '81-'83 280zx were flattop. Piston Differences Like the heads and blocks there were many different pistons used in the L Series engines. All pistons were cast Aluminum with 2 compression rings and one oil ring. Buy direct with global shipping to your door from Osaka, Japan. Mar 15, 2001 · COMPRESSION Using a P79/P90/P90a head on a flattop piston L28 motor will give you 8. The thing fired right up and has been running Product Information: Part number: #10-KAME-314-870 Make/model: L24 L26 L28 Descriptions: Forged piston set by Kameari High compression pistons Comes with piston rings, piston pins, and clips Pin diameter and length: 21mm x 50mm Pin height: 38. Do a compression check on the Mar 13, 2006 · The engine I currently run in my track car is a rebuilt 78' L28 (N42 block and N47 head), with ITM +0. 2L L28 that utilizes an 85mm crankshaft, and their own pistons and rodsafter some number crunching, they really like a really high compression ratio. For those who don't know, Cosworth makes VERY high end, high quailty engine components, Apr 19, 2014 · I would prefer to keep the bore the same (86mm), but I don't know if I can get lighter, flat-top pistons at that size. I've heard of this being done before many times but I don't know how well it works. We speak English and all email queries are responded to promptly! This engine is fully rebuilt with our most common upgrades. Piston information is published in the Federal-Mogul Pistons and SilvoliteCatalogs. Just installed the engine. And I'm concerned about how high their kit sits atop the deck. 5 or 1 point max raised CR from stock L28 flattops that will work with modified E31 Mar 14, 2004 · My engine is a 3x2 carbureted 3. Oct 3, 2012 · so i talked to the guy whos rebuilding the engine, he builds about one of these a week so hes well versed in knowledge of these engines, the final build we decided is n42 head with the flat top pistons so the compression will be 10-1, he said i can run on pump gas of 91 with no issue, but with the cam and compression may have to advancethe Feb 20, 2008 · If the pistons are flat tops, the OE flat top pistons pop up out of the bore approx . This is with a bore of 3. Nov 19, 2009 · Hi guys! I'm rounding up parts for an L28 88mm piston bottom end for a build up to compliment my modified top end and would like some advise on pistons. If they did pop up . 2mm 1. 00:1 CR 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. again: the 1979 - 1983 N/A engine spec is 171 psi. wouldn't the setup cause a much lower compression ratio? Apr 14, 2017 · The N42 blocks have 10cc dished pistons to match the open-chamber head-you will work out to about 8. I just did another search and found that JE will do the pistons i want for around $900 - not too bad. From 200 HP Street builds to 700+HP Tubo monsters and everything in between. Kameari Cast Racing Piston Kit Type A 89mm - L28 L30 L31. Flat or Dish with Valve Pockets. Check out Mr. First is the size change from 2393cc to 2565cc in 1974 and then in the US market the engine changed again to 2753cc. If that was OEM, that would’ve already been taken into consideration for the compression ratio, but if it is aftermarket, that would drop my compression ratio down almost 2 full numbers defeating the purpose of my build being a high compression streetable L28. Here we will talk about the Block, Cylinder head, Crank and piston differences. 0mm L series piston rings so put less stress on the piston ring lands and are less prone to flutter at high RPM. Pistons are 8. 9 - 10. Dec 17, 2006 · i saw this mentioned a few weeks ago and it got me thinking (sometimes dangerous, LOL). oh, and anyone have performance #s for Feb 5, 2009 · I'd just go with a standard L28 bottom end. From ARP, to ACL bearings, Ross Racing Pistons, BHJ Dampers, and more. These pistons use a thinner ring set than stock and with that reduced friction, ring manufacturers claim about 10HP advantage over stock. 4 liters of displacement. Cheers David L28 BLOCK CHOICE According to Nissan, there were 2 different L28 blocks, '75-80, and '81-83. Head Differences Head Identification The L-series had six different Jul 18, 2008 · The 1. All six of the pistons in your engine reach TDC twice in the four strokes of their cycle--on the top end of the exhaust stroke and the top of the compression stroke. Feb 1, 2022 · Our first high compression 2. L28 from the 280z and '79 and '80 280zx were almost the same dish as the L20B. Whether you need a stock L24 or L28 rebuild or if you want a turnkey Datsun race engine, we are your go to shop for Datsun engines.

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