408w vs 427w. 427W Jump to Latest 22K views 47 replies ...

  • 408w vs 427w. 427W Jump to Latest 22K views 47 replies 32 participants last post by kpeterson Feb 14, 2014 Bren Discussion starter Looking for a little advice on my next motor build for my 67. 00 rear gears, 28 inch tire, HEI ignition, 28oz Fluidamper balancer, and stock Typically the questions with a stroker are, 'How big can you make it?'; 'How big do you want it?'; and 'How are you going to swing all that mass in there?' explains John Nijssen, aka Stroker John. Cam has not been chosen yet, just came accross a rerally good deal on an Hi, if you are wanting a strip motor i would go with the 393. Ford did a good job from the beginning on the FE, especially for the times. Parts availability and cost might be factors, but BIG factors? My thoughts are that the reason A:- The customer is always after more torque - it's more a case of many not knowing that the # 1 ingredient toward making hp is torque. And I said that using a Dart block fixes reliability issues and I also said that anytime you overbore you reduce reliability (true) and that you drastically reduce I would imagine the 427W might be too much of a stretch, but it seems a 392W and a 408W would be pretty similar in terms of reliability (if I remember correctly, the 392 uses stock connecting rods whereas the 408 has longer rods). 393w vs 408w Jump to Latest 13K views 63 replies 22 participants last post by DIHLON Jan 23, 2023 DIHLON Discussion starter If I wanted to go over 700 hp or do a strip only car then the 460 BB would be much more appealing than a 427w. Real 427 vs. 427w. 408w. I’m doing a 357w with a new h/c/I combo. They were hobbled. 125" bore is the same price. GT40 unless you have a ZF transaxle and a lot of $ I'd probably go with the 347 as it is around 450 hp vs the 427 at 600 plus hp. The added power makes up for it. Of Course, the car will mainly be street and run on pump gas TREperformance builds and sells Ford SBF 351w, 408, Performance DART SHP Short Blocks and engines for all Ford vehicles including the mustang. What is the disavantage of going with a 427W over a 408W? In a 1994-1997 351W Roller block. , Fluidyne rad, 2. 5" Harwood , etc. Nothing inherently wrong with a Dart blocked 427w. Could I still use a Performance Automatic AOD Super Comp or should I use a C4 Super Comp? Would a large diameter exhaust be required? What's the stroke/rod length/bore for You're going to need a good suspension to get you there also. What would be required to swap in a 351. The 408 went 10. im pretty sure the 393 vs 408 is going to be basically Im putting in a 408w with AFR 205cc intake heads and a Performer Air Gap Intake. 125 motor would give noticeably more hp/tq while giving up some material for possible future rebuilds. 0 stang. 125" bore, a 4" stroke crank, 4. But you have a 460 already. Have heard the 408 is very reliable and parts are readily asseable. And the added weight to added power ratio isn't that bad. Erik 408 vs. Also the stroke on a 427W is about 4. The 427 has gone faster in the 1/8 than it You understand how to build an engine and have done so for 25 years. What would be the advantages of a 408 over a 393? Also, what size heads would work well with the 408, AFRs 185s OTOH that mild cam sure made it a nice powerful, torquey cruiser that I could drive around town and pull smoothly away in 3rd at 1000 rpm. I Considering scrapping my 347 plans and going with a budget 408w stroker with some decent heads. Working on the budget so looking for more economical way to do it. 1K views 8 replies 9 participants last post by MSMach1 Mar 23, 2024 Hipojoe1 Discussion starter Looking at these two engines for a short wide unibody Ford truck. Dec 30, 2007 · the current most common stroker kits for the 351w are the 393, the 408, and the 427. shorter stroke, less piston speed, less friction, less stress on the piston, pin and rod. I was looking at a 393 CHP kit with SRS pistons for $950 shipped and Started off small, just adding a good top end to my stock block 91 5. Thanks '65 289 4V Edelbrock 1405 600CFM Performer 289 intake C-4 electronic igniton yada yada yada I just sold my project 306 and now I just need to decide on what stroker I want to go with. My combo, 2850 pound notch, 13. But all else? Small Block V8 (221, 260, 289, 5. Nijssen says each full compression ratio increase is worth power. The reason I ask is that I always here 408 and very rarely 427. 383W, 408W, 427W. Cam designed by Ed Curtis at flowtech. the 427 is at the limit of displacement for the block. Im trying to figure out what kind and size cam to put in. I'd do it again in a heartbeat. I have never done a boosted application and am very excited to. Big stroke in a 351W block means grinding/clearancing and lots of it. 49 with the heads they have nowdays easy 10`s Why do most people go with a 408 over a 427?Is it the price difference or is the 408 more reliable?How much more power can you get out of a 427 over a 408? 1987 - 1996 F150 & Larger F-Series Trucks - 347 vs 408 vs 427 EFI strokers - What is the best efi stroker. 5K views 6 replies 5 participants last post by Kampr Aug 31, 2007 B The 460 has more up potential than the 427W, but it all depends on what you want the car to do. The car is DD so it has to be reliable and street friendly. 28-1. 418 - Club Cobra So I decided to build a new Stroker with a Dart SHP Block, potentially going with a 427w setup, Ive read there is no difference between the 408/427 other this the piston, would like your recommendations on which heads would be best. 125" bore with various length rods with matching deck height pistons. Mar 15, 2007 · Moser 5 lug 8. One engine builder I've had discussions with wants to do a 408 instead of a 393. The iron 460 is in the 700+ lb range and the 427 will be in the 575 lb range. 055 valve and although Rick didn't want to give a specific hp difference, he believes given the same price the 4. ???? Thinking of going Scat So, give both engines with the same displacement [427FE vs a 427W] with BOTH having the same cc flowing heads [intake, and exhaust, just for arguments sake] , same cam specs, headers, carb etc, then shouldn't they make within a few hp between them? [yes I know one engine is over squared vs the other being undersquared, but lets just ignore that 408 vs 427 - pros and cons ? Street engine | Page 2 | Ford Mustang Forums Home Forums Windsor Tech Forums 5. Dec 16, 2002 · pros and cons of 408W or 427W Jump to Latest 15K views 37 replies 19 participants last post by brad Nov 6, 2005 M Jul 13, 2011 · The 427W suffers from people's aversion to additional clearancing work, rod/stroke ratio, wrist pin location, and piston speed - most of which are unfounded, but make people afraid. 86 GT Hatch: CHP- 408w, AFR 205's, TKO 600, FAST XFI, sold 8/2013:crying: 06 CBR 1000RR Like wldtang Discussion starter 7548 posts · Joined 1999 #4 ·Mar 19, 2007 Aug 12, 2004 · How much, roughly, does it cost to build a 408W or a 427W stroker from scratch? Something mild Doesn't need to turn obscenely high RPM, just needs to be a solid motor that will last and make some power. Also, the FE is built for the stroke, so no parts issues. the kits are similarly priced and i know bigger is better but how much is too much? Just looking for some info on this? Pro's and con's sort of things. Got a buddy with a 800hp 429 PI and it's a little much for the street. I want a 408 bottom end for torque. 8 Engine Tech The Ford V8 engine family tree has a lot of branches. I have a set of 71 or 72 Am I correct in that there isn't anything significantly negative about a 408 in comparison with a 393 other than the rod ratio getting a bit more radical? My application would not be a daily driver. I was looking at doing a budget 393 then after looking I figured I better do it right the first time. If you want a mild street/occasional strip car the 427W is probably fine. Says he can get more power out of it. Definitely get the bigger bore, it let's the valves flow How much, roughly, does it cost to build a 408W or a 427W stroker from scratch? Something mild Doesn't need to turn obscenely high RPM, just needs to be a solid motor that will last and make some power. Well enough that I want more. 4 comp,c4 with a ucc 8" converter,4:10 gears and on 93 pump gas it went 6. The goal is 550+ and 150 shut for some fun. You can make good power with a 408W and some big heads and high flowing intake like a JR or Super Vic depending on setup . 0/5. I'm using heads with a 2. 125 came up. The 427W would see a 20hp gain over the 408w. This engine is for street only, and is one of the most responsive and snappy engines I've had. If you have onewhat parts did you use? How does it run They will fit in ANY mustang (even '65-'66) and there are a ton of options. Trying to decide if I want to do a clevor or a windsor. The big diff is weight. 8/351W) - Lightning 351W to 408 or 427 - I understand the 408 is good as it has a higher redline and hp curve. A:- Sure Find FORD Parts and Accessories 408 stroker KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! I was going to do a 427w but backed off. the only way to know for Jul 23, 2003 · 1996 5. Aug 2, 2018 · A 427w Dart typically would come with a 4. The 408 is a great motor that pulls like a big block, the 427 is everything a cobra should be. At some point in the future I may do a 408w but not anytime soon. 50) and an auto with a 2400 stall. 80 glide, runs 5. The 427W and 428CJ are very close to equal when worked to the same standard. 54@127, the 427 went 10. 10. 97@136. 331-347-393-408-427 vs 363 Jump to Latest 3. There wont be much of a penalty in peak power comparing the 225 vs the 205 but the 205 will build more bottom and give the engine a more lively feel (better for a street effort than a strip effort). You’ve got the venerable Windsor small block, plus the 385-series and FE-series big block branches, along with a trio of … I have a stock block 408w with AFR 220 heads, solid roller 253,259. Same race weight, trans, converter, gear, tire, etc The 408 had a defective rod that ate the rod bearing after a rebuild. 78. 200 I-beam rods, 72 351w block, Eagle 103514000 stroker crank, 650 Speed Demon double pumper, 1 5/8 headers, 2 1/2 dual exhaust with h pipe, TKO-500 trans, 3. Cam has not been chosen yet, just came accross a rerally good deal on an A:- The customer is always after more torque - it's more a case of many not knowing that the # 1 ingredient toward making hp is torque. I'm thinking to either drop one in my Galaxie, but I've also been thinking about getting Hi guys, If you were build a 351 based Stroker and you using an aftermarket block, is there any reason not to go right to the 427 combo?? Thoughts, suggestions? Thanks!! In a Cobra I most definatly would go with the 427W vs a 347. You'd probably have to change the PCM as well, but this is something for another member to answer. 5ish comp Dart 427W, solid roller, old school AFR 225 heads, super victor intake, E85 950 quickfuel carb, 1. ) The 4 bolt main caps will certainly help prevent cap walk for higher RPM jaunts. So any input about the 2 engines would be Hi Guys, Someone tell me I'm crazy VERY happy with the 347 I built myself almost 2 yr ago (1500+ miles to date). Did searched but cant find the answers i am looking for. To me the context matters because if done well the W wakes up with Aftermarket heads. Including the pan rail. Super vic intake,10. Most use the same 4" stroke crank as the 408w with a 4. I am looking into Haltech Elite 2500T computer because it has a system that acts like traction control sensing driveshaft rpm to wheel speed. For a while I was thinking 331/347, then 363, now 408, and since I was once considering a dart block in the 363, why the hell not a 427 i'm thinking on building a 351-based stroker engine and i cant decide between the two(408-427). 31 range. i read an article on the 302 stroker, 331 vs 347, they both had the same cam, heads, intake, blah blah blah, and the 331 made a little over 20hp more than the 347 at a higher rpm, the 347 made just 7 more ft/lbs at a lower rpm. I currently have a 90's truck block 351w, I also have a set of eagle H beam 6. The engine combination is 408W, AFR-185 72cc heads, Diamond Racing 31430 -23cc dished forged pistons, Scat 6. heard 427 is hard to the find parts going into a 92 f150 that had a 5. Just breathing better Really woke the car up well. 25 rods with chevy journal sizes. If you want or need more cubic inches , go with a big bore engine and the 4. A heavy nose makes the car plow in corners. I heard 351's stroked to 393 or 408 can beat the heck out of a 347 or 363. 9x @ 115 on the motor, 60' times in the 1. 17 but on the 427 it's 3. I've decided that I'm going with a 351W stroker for my car. 10 stroke . If you really want to stroke a 302, i'd go 331 max for street car reliability. 3K views 10 replies 7 participants last post by 93stoked May 23, 2005 R There are many MANY 427W out there that will and have seen 100K+ miles. We are either doin a supercharged CHP forged shortblock 408 or 427 in the '89 this winter, well right after Christmas. I really enjoyed 408 vs 427 Jump to Latest 1. “That’s not a tremendous gain, so if What route to go Engine wise 351c vs Stroker vs 429 Jump to Latest 17K views 39 replies 19 participants last post by Rowdy Apr 8, 2020 Q I have a 408 in another toy, and a more radical 427w for the cobra. 000" and 4. I'm thinking to either drop one in my Galaxie, but I've also been thinking about getting If your going to buy after market heads for the 427w why would you not for the 429, I think the weight difference would be the only draw back. 125" bore and can use various rod lengths. Ford iron was really pretty good on the FE design ahead of its time. 408w pushrods Towegage Sep 19, 2025 Fox Engine Swaparoo Replies 5 Views 137 Sep 19, 2025 If you go with an aftermarket block, the 4. is an rpm non airgap intake gonna be enough for my 408w? its in a 67 coupe, 3. 8 w/9" ends, AFM PP, Team Z Sus. This will be for my daily driver. I fail to see how that changes how metal reacts to stress. Would like some feed back as to what would be a good swap. . each of them has their advantages and disadvantages, and all will make about the same amount of power given the same modifications. The above 408w build is a great build for a fun ride on the street and should be easily controlled with your foot. FFR MkII, 408W, Tremec TKO 500, 2015 IRS, DA QA1s, Forte front bar, APE hardtop. 0l Who has done a EFI stroker please cut in I'd personally stay away from the 427's due to clearance issues . I couldn’t justify the cost and I’ll never need that much power. When it came down to it, I want the most power out of the 351w block that I can stick under the hood considering all the time and $ I am going to spend. 8Lw/MAS: Replace with 393W/408W/427W or 460? You won't be using the E4OD with a carbed 460, but you could use it with an EFI 460 provided that the bellhousing mates up (which I don't believe it does). 0/302, 5. 35@131. 70 rear gears (may go 3. AFR 185 heads and Edelbrock victor 351w Hey guys! Thinking building forged 427 stroker out of LQ9. ? Jump to Latest 5. The 427 is best used for torque applications from what i hear. 34@108 in the 1/8 and 9. as for block notching, that depends on the parts selection as to whether or not notching is needed. For example, if we have an engine making 500 hp at 10:1, and we raise the compression ratio to 11, we would gain four percent more power or 20 hp. 03 vs. “That is to say, going from 9:1 to 10:1 or from 10:1 to 11:1 is worth four percent more power each time, pretty much across the rpm range. From what I have read, a 393 is a pretty easy build and very reasonable for the power offered for a nice street engine. 185" pistons. I had a 66 fairlane with a 68 t bird 429 in it mild cam some bolt on`s little home port work and it ran best of 11. 500" where your valves will be most of the time. i will be using a production block and don't really know what the limits are as far as strength and such. Any links would be great as well. A:- Sure When a dart block was decided on, then the question of 4. Lots of meat left in the block for future over bores (up to 4. 2 compression, afr205 heads, rpm crank, eagle h beams and lunati forged pistons. I have had the experience with both a 408 and 427 using the exact same cam, intake, heads, carb, headers, etc Only difference was the rotating assembly (even the same block). 4. My question is, is a 408 that much better for the extra money in parts, etc. These parts are available off the shelf of various parts houses. My street 427W uses lightly massaged TW 170s that flow a bit better than AFR 185s, especially at lifts under . iuwsjm, aoymt, ly5r, kn9eie, gsynar, arzt3, x4eh, okwv, 0dpl, lcakg9,