How much hp can a stock 4l80e handle

Our stock transmission is rated for 400 hp. The stage 1 4L80E transmission is adequate for the majority of street rods with 600 hp. If you need a stronger unit then you may need our stage 2. This transmission comes is capable of handling that 800 hp engine. Our stage 3, this is our strongest 4L85E transmission available rated at 1000 Hp.

815 posts · Joined 2011. #2 · Dec 14, 2020. You can make 500-600 hp on a stock block but the stock rods tend to fail somewhere North of 400-450tq. If you want something reasonably reliable for a modded car, at 600+hp, you might as well build the engine. Stroker kits help spool big turbos but won't rev as high.As such, there is some "head room" in terms of power capacity. As long as there is no excessive wear inside from high miles or neglect, a good 5-speed Allison can hold about 100 more horsepower than stock. While that does sound like a lot at first, just consider a custom tune can easily add more than 130 horsepower, getting you well into ...I bought a set of Henry's Machine axles in 1973 to put in the 12 bolt in my 3450lb. '67 Camaro that had a 427, 4 speed, and 4.88 gears. The car ran mid 11's at 118 on slicks back in '73-'74. It was a stick car, and was launched at 6500-7000 on slicks.Sep 4, 2023 ... Any 4L80 in good condition will handle 400hp with ease. A good valve body kit will help durability while improving shift quality.A tune and rear end gears, best bang for the buck on the V6. Dual exhaust will change the sound, but not really add much HP. Cold air intakes are popular, but are worthless without a tune and even with a tune don't add more than 10-12 hp. With the stock long block there just doesn't seem to be the easily made HP with simple bolt ons like the …Oct 10, 2008 · About 400-450 HP/TQ is the limit on the stock TH400. With ONE almost free modification and some minor valve body calibration changes, 800 HP on an otherwise stock TH400 is not a problem if it's assembled well (good endplay, etc), and the 34 element sprag is a wise addition above 450 HP or any drag usage. jakeshoe, Nov 5, 2008. How much HP can a 4L80 handle? Will a 4L80E handle 500hp? The 4L80E in stock form would be limited by it’s direct clutches (3rd gear) and that would be a part that would gradually fail at ~500 HP if raced often but last years on the street at closer to 600 HP/TQ in a passenger car application. Other than that it would mostly depend on …6826 posts · Joined 2012. #29 · Nov 25, 2019 (Edited) RocketRobin said: The stock clutch can handle about 360 lbs torque. I swapped mine out for an ACT HD clutch that can handle 522 lbs. Pedal pressure and modulation is ok for city driving, but it's not the nicest. This clutch takes a while to break in.

Typically, a stock 5.3 engine with cast pistons can handle up to 8-10 psi boost with proper tuning and supporting modifications such as upgraded fuel injectors, increased fuel pressure, and a boost-friendly camshaft. However, pushing the engine beyond these limits can cause issues such as engine knock and detonation, which can lead to engine ...Generally speaking, the 4L80E will be able to live well with up to 450 flywheel horsepower and torque without any modifications; however, when exceeding this point additional … We can also offer packages which include a trans-cooler, trans-mount, flexible dipstick and Lucas HP 501 Sure-Shift transmission fluid. Other fine products $69,900.00 May 16, 2009. #9. BA BUSA said: Gen1 rods are good to 280-300 hp....Gen2's are a bit better, but if you are looking for 350hp...upgrade the rods and pistons. this ill disagree with maybe on spray but on a turbo wich is more gentle itll take 350 gen 1 and around the same or maybe a hair more for gen 2's ive been well over 300 on gen 1's as have ...A tune and rear end gears, best bang for the buck on the V6. Dual exhaust will change the sound, but not really add much HP. Cold air intakes are popular, but are worthless without a tune and even with a tune don't add more than 10-12 hp. With the stock long block there just doesn't seem to be the easily made HP with simple bolt ons like the …The HP 12C is Hewlett Packard's longest-selling calculator. It is specifically designed for financial calculations, including mortgage payments, the time value of money, cash flow ...

86 posts · Joined 2008. #2 · May 6, 2008. The pre-1982 blocks will supposedly handle up to 750hp at the crankshaft, but I'd use a steel billet main stud girdle, as I did on my own 302. The blocks produced in 1982 and newer are about 40 lbs lighter to help the Fox body cars handle better, and much of the weight savings came from reducing the ...EagleAutosports. 30992 posts · Joined 2007. #4 · May 7, 2007. If properly prepped, I think a stock 302 crank can handle around 500-550 hp, any more and you're going on thin ice. The block is the real weak link, since there isn't much meat in there. Cracking in the mains, between the cylinders, even up into the lifter valley can happen.Absolutely stock, about 400-450 HP. With proper hydraulic modifications during rebuild, about 750-800. Above that it needs a billet input shaft and forward hub. I have a manual control box that plugs into the outside and 12V Ign power to make one fully manual. Easily reversible to computer control.How much power can a stock 4L80E safely handle, before upgrades are needed? ... up running 500 or 600 horsepower. I think I saw one with a truck that had around 700 ...With a stock-type fuel pump and a 1970's TH350 transmission, a great match here would be our 2000-2200 stall converter like PN 109-602. Torque Converter for 1955 Chevy. Or a 1955 Chevy 2 door hardtop which weighs about 3,350 lbs. It's running a 383 engine with 10.5:1 compression, a Comp 292 cam (rough idling hot rod style cam), 4.11 gear ...

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If your HP laptop is not working or is malfunctioning and you have done everything you can do to fix the problem yourself, you will need to have the laptop repaired by a profession...The stock 7.3 is capable of producing up to 250 HP. However, with some modifications, it can reach up to 400 HP. It is important to note that modifications can cause the engine to become less reliable, so it is important to consult a professional before making any changes.At 700hp with street tires, you could probably put a stock 4L80E in there with a decent torque converter and a $90 Transgo kit and drive it on a daily basis with very good reliability at your proposed power levels. As for cost, the 4L80E's are still kinda pricey. You can good good used one's for around $1000, or GM Reman's for about $1400+.Not too many people are breaking built 4R70Ws. Mine really isn't a stock V6 tranny - it was built to Jerry W. spec by a shop he uses. But the '99 and up V6 4R70Ws are not too far behind in their ability to take power. 95 Lightning - Slow. 95 Convertible 357 turbo. 10.5/135 @ 3800#. SCT Tuned.

How much horsepower can a 4L80E handle? Some transmissions struggle to handle the power and torque produced by high-performance engines, but Performance Automatic has developed a transmission that can withstand up to 700+ horsepower.The 4L80E transmission is designed specifically for performance applications and is capable of handling a tremendous amount of power while still maintaining smooth ...I doubt anyone can really give you a definative answer on how much power the E40D will handle other than the factory rating. I believe it is 900ft lbs. But this is the torque that the tranny is rated to handle not your motor torque. The typical torque converter can multiply torque by up to 2.5 times when you hit the throttle so do the math.Mar 8, 2020 ... ... can hold a ton more power, so the 4l60 came out, and a junkyard 4l80 went in. My other two videos I show the beginning steps of the process ...A stock th400 can handle between 400- 450 horsepower: A stock th350 can handle between 315- 400 horsepower : Gear ratios: 2.48, 2.08, 1.0: Gear ratios: 2.52, 1.52, 1.0: A stock th400 costs about $1600, though it can be less if you buy a used Th400 or rebuild. A stock th350 costs about $1200, though it can be less if you are buying a used Th400 ...How does a stock TH350 hold up to higher power levels? I hear the TH400 is just about bulletproof and is an ideal trans with the exception of no OD gear. ... I'm surprised no one caught my typo the TH400 properly preped can handle nearly 2,000 hp not the 1,000 as I said (I was thinking of the 4L80E which can only handle about 1,200 horse …How much HP can a stock 4L80E handle? The 4L80E is a powerful transmission that has been used in many different vehicles. It can handle up to 450HP/TQ of flywheel power when it is totally stock or rebuilt. However, if the power output exceeds this number, then some hydraulic improvements must be made in order to ensure its longevity.89 coupe. 2752 posts · Joined 2001. #7 · Apr 5, 2004. A 351W stock block is limited by the 1/2" main bolts and only being a 2 bolt main means the caps will start walking around 750-800hp if using high quality main studs. That is the 460's limitation also being the small 1/2" main studs and also the same 750-800hp for the same reason.4. Bowtie blocks with splayed 4-bolt mains with center studs should handle over 1,500 HP, and are good to well over 8500 RPM. Also, an article in todaysnhra.com, it stated that "Factory production blocks with 4-bolt main caps can reliably 800 HP. And a 2-bolt main coverted to aftermarket splayed caps are much stronger that factory 4-bolts."Nov 15, 2019 · As such, there is some “head room” in terms of power capacity. As long as there is no excessive wear inside from high miles or neglect, a good 5-speed Allison can hold about 100 more horsepower than stock. While that does sound like a lot at first, just consider a custom tune can easily add more than 130 horsepower, getting you well into ... Then it can only handle the stock power. Any more will cause premature failure and that failure is only determine on your driving style. ... When the tech came out to talk to me he said "your running too much HP and torque, you need an aftermarket tranny" The 2-4 clutch pack was fried. 2009 6.7 QC 4x4, Carli 2.65 radius arm and sway bar kit,AMP ...How much HP can a 4L80 handle? Will a 4L80E handle 500hp? The 4L80E in stock form would be limited by it’s direct clutches (3rd gear) and that would be a part that would gradually fail at ~500 HP if raced often but last years on the street at closer to 600 HP/TQ in a passenger car application. Other than that it would mostly depend on …I do not suggest running more than a 75shot of a stock M50. Even with a little 75 shot you are more likley to break other things. The Getrag trans you have isn't very strong (I blew one up in 2nd with about 210-240hp), I also twisted the splins on my brand new remand M50 drive shaft with the same power.

A 6.0L iron motor will handle 1000 pretty easy, we ran an iron 6.0 for a few years back before we started using the erl stuff and it made 1500+ and was reliable,of coarse it was hard filled,dry sumped, had a girdle and was assembled by billy briggs. All with a little LS2 and 1 Turbo [email protected] at 3330lb.

With a stage 4 clutch. Im not saying they arent great trannys, but i have a stage 5 competition 4 puck clutch, only making 235whp, 190 torque and i threw a rod inside my tranny straight threw it.. nice 2 inch whole threw the bell housing and out the other side. Great times. Make sure if you use the Z6 trans, get LSD, and a quaife and have a ...Just wondering how much hp can these stock internals actually handle. The tech guide said you can get a reliable 400hp on the stock internals. Obviously i will be puttin the boost down when i'm daily driven. Also whats a recommended place to get good internals for the 4g63. Thanks! i want high hp but reliable at the same time. Vic.With these modifications, a 6L80E can handle 500 to 600 rear-wheel horsepower in the typical street/strip application, although we have had customers push them all to the way to 1,000 hp." How much HP can a stock 4L80E take? How much power can the 4L80E handle? A totally stock unit or rebuild will typically live well with up to 450 flywheel ...May 16, 2009. #9. BA BUSA said: Gen1 rods are good to 280-300 hp....Gen2's are a bit better, but if you are looking for 350hp...upgrade the rods and pistons. this ill disagree with maybe on spray but on a turbo wich is more gentle itll take 350 gen 1 and around the same or maybe a hair more for gen 2's ive been well over 300 on gen 1's as have ... The GM 4L80E Performance Transmission Level 4 is powered with whopping 800 Horse Power. This automatic transmission gear can also generate up to 700 ft. lbs. of torque at a stall level of 2800 to 3400 rpm. This automatic transmission for sale is compatible with custom built and custom stalled 10” Lock-Up Billet Racing converters. How much hp and rpm can a 2 bolt bbc handle? 1970 Chevelle 489/400 Auto BBC Ohio Crank, (Wolfplace Hyd Roller Cam)Brodix RR Ovals, RPM AIRGAP Custom (MOD), PRO SYSTEMS, 3.73_12 Bolt Sacramento, CA. Save Share. Like. Sort by Oldest first Oldest first Newest first Most reactions. J.1821 posts · Joined 2013. #2 · Jun 29, 2017. The trans really doesn't need to be built until you're well into the dual fueler and big turbo range. 650ish HP i'd say it's fine with proper tuning. --H. 2012 6.7, once was an XLT but is now a Platty..someday I'll do a write up on the conversion. Too many other toys for it to list, prolly easier ...To give you an indication of just how powerful the GM 4L80E Performance Transmission Level 4 is, it has a whopping 800 horsepower. This automatic transmission gear is capable of generating up to 700 ft. lbs., making it one of the strongest and most reliable transmissions available on the market today.

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td1042k. 4284 posts · Joined 2004. #7 · Jan 31, 2007. i thought the crank was capable of handling upwards of 1300hp, but the stock pistons/rods were the parts that fail around 500hp. 2004 Black Neon SRT-4: Sold March '08 :crying: Dyno: 330hp/350tq on S2/S3 setup. 2009 Waveline Pearl Scion tC: Daily driver.In like 2002 the drives were beefed up a bit. I know a guy running 600HP through a stock 2003 Bravo 1 for 3 years and he does not baby it. It is on a much smaller boat though. If I were in your shoes, I'd buy a spare drive. They can be had for $1500-$2000 and it's good insurance as to not loose much boating time.Sometimes, a problem with your HP LCD monitor cannot be resolved unless you completely open up the unit. While this is usually a last resort, it is not one which requires paying a ...May 16, 2009. #9. BA BUSA said: Gen1 rods are good to 280-300 hp....Gen2's are a bit better, but if you are looking for 350hp...upgrade the rods and pistons. this ill disagree with maybe on spray but on a turbo wich is more gentle itll take 350 gen 1 and around the same or maybe a hair more for gen 2's ive been well over 300 on gen 1's as have ...An Error Occurred. Parking is currently unavailable. We'll be right back.How much hp can a 2017 Mustang GT stock engine can handle? Thread starter SSG 5.0; ... How much hp can a 2017 Mustang GT stock engine can handle?-all of it . Last edited: May 22, 2019. Reactions: zero_chance, jhatley7, ckendri and 4 others. OP . OP. SSG 5.0 Well-Known Member. Joined Mar 11, 2019The stock 700R4 notably could handle 350 horsepower. However, a built 700R4 transmission can handle more power. There is the level one street cruiser-built transmission that supports up to 450 horsepower. The SS extreme can support up to 750 horsepower. Whereas the built version of the GM super street fighter transmission can handle as high as ...At 600 whp they seem to last about 100 passes. At less than 400whp, the gears should last almost indefinitely, barring other problems. At 800whp, it's probably in the area of 10 passes. Horsepower in fine for talking about gear life. Any horsepower level is going to have a fairly narrow range of torque it will produce.I'd say max just under 300bhp. I know a guy who made approx 278HP. In Ireland the is200 is the most popular car in the scene I know 40 of them in my small town and my friends making 314bhp with his 1gfe and she handles it.Yea im just looking to spend under 5k to get as much power out the 4.7l as possible its decently fast now and eventually im going to buy a cummins and use my ram 1500 for offroad, driving beach, and a all around beater because trading it in for 4k isnt worth it when i have 2k in just wheels and tires.May 12, 2021 ... Toughest 4L80-E Input Shaft for 1,000+ HP ... treatment (topped off with many more advanced ... workhorse transmission, can handle a lot of power,With a 17.5:1 compression ratio (vs. 16.8:1 on LBZ, LMM, and LML mills), the LB7 and LLY engines naturally see higher peak cylinder pressures (elevated torque levels). Couple that with a weaker connecting rod and you can draw a pretty strong conclusion as to why the LB7 rods fail in the 550 to 600 hp (1,100 to 1,200 lb-ft.) range. ….

Its more hefty build can be tied to its 236 lbs and a length of 26.4″. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5″. A comparison between the size and weight shows that the 4L80E is significantly larger and heavier. How much horsepower can a stock 4L80E handle? How much power can the 4L80E handle?How Much Hp Can A Stock 5.9 Cummins Handle. A stock 5.9 Cummins diesel engine is capable of producing up to 160 horsepower and 400 ft-lbs of torque, depending on the model year and other factors. With the right aftermarket modifications, including a performance chip, turbocharger, and air intake, a 5.9 Cummins can be boosted to around 350-400 ...Description. Black Edition 4L80E… 2000HP. We highly recommend the use of a transmission blanket/scatter shield for use with any transmission 900hp+. This is our strongest transmission offering to date. We start with only late model cores for our performance line and application based core for our heavy duty line (Heavy Hauler).Hard Driver. 636 posts · Joined 2010. #9 · May 29, 2013. For that kind of money you should be able to buy an 8.5 S rearend with limited slip and maybe disc .The 7.5 / 7.6 will not hold up under prolong pounding from a strong V8. S10 blazer 85 2dr 2wd sbc,200 4r trans. 8.5" 3:42 disc brake rear.The 4L80E is capable of handling up to 1,000 ft-lbs of torque and is rated to handle up to 440 HP. It has a maximum input speed of 4,000 RPM and a maximum output speed of 3,000 RPM. The 4L80E is an evolution of the earlier Turbo Hydramatic 400 transmission, and shares many of its design features. Back to top.62nalide. I pushed on up to 600-817rwhp for a year (6L80E) on a heavy truck, some make 650rwhp and hold for a lot time. The 6L80E has been out for years and its all in the tuning. I've heard of people break them at 500hp or so but as long as you have a bigger trans cooler and watch your temps it'll last a long time.If you want to know how much power a stock Toyota shortblock can support (stock block, pistons, rods, crank), I wouldn't push it over 300ft/lbs to the wheels if you expect it to work reliably for very long. ... I would imagine the 3rd gen 3SGTE can handle the most HP, correct? 2001 Honda S2000 Berlina Black/Red 1991 Toyota MR2 in Audi Misano ...The answer was something like 500 hp. If we apply that formula it allows you to increase 8 x 20 = 160. 160 + 350 = 510 hp. That means that to the wheels you are talking about 450 rwhp. One thing is to ask how much hp a LS1 can take and another is to ask how much HP can you run an LS1 within safe parameters.Oct 10, 2021 ... ... stock hardlines for the trans cooler, and ... 4l80e to -6 fittings for with rear return ... can Follow us on FaceBook https://www.facebook.com ... How much hp can a stock 4l80e handle, Power is (torque * RPM/ 5252). Max RPM for a mostly stock L28 is around 7500 RPM. If you can make the engine flow enough air/fuel (thats all that porting and polishing and big cam, etc.) to fill the cylinders at 7500 rpm, you get 240 hp. Thats a very radical L28 for the street, more typical is 200-225 hp., The stock internals can handle in the ballpark of 400hp at the crank. The hard part is getting there and being able to put it to the ground. ... (250+) hp range is at best difficult. You can start with the following mods first which are described in detail at Z31.com: better cat back exhaust 240sx throttle body (SOHC, w/ cruise) headers cams ..., Oct 6, 2006. #9. Typically the stock block is good to about 450 hp. There are some really lucky ones what have an exceptional build and the stars are lined up correctly but don't bank on it. The girdles don't strengthen the block because its not part of the block., The 6R80E is the six-speed, "game changer" that can be completely controlled by a five-wire hookup to an external trans control box. This trans features a clutch-to-clutch shifting design that can handle 500 horses with stock components and over 1,000 horsepower with ATI upgrades. The 6R80E., Stock 4L60E planetary gears are designed to handle up to 400 horsepower and 380 lb-ft of torque. Upgrading these components is an effective way to increase the power handling capability of the transmission. Aftermarket planetary gears are available for the 4L60E, and they are designed to handle up to 700 horsepower and 650 lb-ft of torque., The "6" and "8" refer to the torque capacity based on Gross Vehicle Weight (GVW), so the 4L60E is rated to handle a 6,000-pound GVW, and the 4L80E 8,000 pounds. That'll help …, The stock toploader transmission is very stout, with cast iron case. Aluminum case and tailshaft save a lot of weight, but do reduce the durability to some extent. ... Good luck finding how much HP the toploader can handle. First there's both wide and close ratios. However as a FORD guy myself one of Ford's epic fuck-ups is every big block 427 ..., Description. Black Edition 4L80E… 2000HP. We highly recommend the use of a transmission blanket/scatter shield for use with any transmission 900hp+. This is our strongest transmission offering to date. We start with only late model cores for our performance line and application based core for our heavy duty line (Heavy Hauler)., There are guys running C4's behind built 351C's at the strip but they are highly modified. A stocker IMHO will take a 400 HP street blast every once in a while without grenading. The same trans might not last a day at the strip making run after run. With a good shift kit and an external trans cooler the same trans would likely last a long …, 383 posts · Joined 2006. #14 · Jul 23, 2007. mine: stock cast 454 crank, stock 3/8" rods w/arp bolts, liteweight hyper pistons, I spin it to 62-6300rpm ALOT with a stickshift. the bearings need freshening at least every second season, but it has been together with various top-ends, since 96., Reads 148. A stock 4l60e can handle up to about 600 horsepower. However, there are many aftermarket options that can greatly increase this number. For example, there are upgraded input shafts and output shafts that can handle up to 1,000 horsepower. There are also transmissions that have been built specifically for drag racing that can handle ..., A perfectly tuned, 4 bolt main converted half filled '69 351W block that has high quality lightweight parts in the rotating assembly could probably take somewhere in the neighbohood of 700 n/a hp. Maybe 750 or so with a power adder shifted at 6000 rpm. Of course this is taking a big gamble., 0. Oct 31, 2004. #10. so from what i am understanding my trans is not going to last to long after i install this engine. how about AOD from PERFORMANCE AUTOMATIC. The company www.bieberfever.com sells thier trannys. They have an AOD level 3 that can handle up to 550 horses for $1,905., The 4L80E is more proven because it has been around much longer and more parts are available for it, but the 6L80E has come a long way and they can handle tons of power …, We can also offer packages which include a trans-cooler, trans-mount, flexible dipstick and Lucas HP 501 Sure-Shift transmission fluid. Other fine products $69,900.00, An Error Occurred. Parking is currently unavailable. We'll be right back., To give you an indication of just how powerful the GM 4L80E Performance Transmission Level 4 is, it has a whopping 800 horsepower. This automatic transmission gear is capable of generating up to 700 ft. lbs., making it one of the strongest and most reliable transmissions available on the market today., With out any boost a pump, how much HP can a stock C6 fuel system handle? "Keeping it sideways" Whips in the Garage: 2005 C6 Corvette 2003 350Z Cannondale Mountain Bike. Save Share. Like. Sort by Oldest first Oldest first Newest first Most reactions. powerlabs., Feb 5, 2007 · Although some LS1s can make and live at 600+ rwhp, as an owner of a speedshop, it would be irresponsible of me to recommend making that type of power on a stock bottom end. 2008 G8 GT 11.7 @ 121 MPH Turbo 500 RWHP. 2006 GTO Cam+Bolt-ons 430 RWHP + N20 580 RWHP. 2004 GTO 10.6 @ 130 MPH Twin Turbo 950 RWHP. , Do you know that the STOCK Mustang GT500 motor can handle a little over 1000HP!!!!! I've been following a build of a Mustang GT500, the first to break 11's, then 10's then 9's in the 1/4 mile! Well it recently broke into the 8's!!!!! We are talking about a stock bottom end GT500 motor making 1079 twin turbo'd hp., The LQ9 is a 6.0L Gen. 3 small block engine used in GM trucks between 2002 and 2007. For marketing purposes, it was also known as the Vortec HO 6000 or VortecMAX. The information listed here is for the stock engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree ..., In short, Performance Automatic yields a 4L80E engineered to handle 700+ horsepower and comparable torque. See All 29 Photos. 1. The Performance Automatic 4L80E is a proven street/strip..., HORSEPOWER RATING: This transmission will support up to 1000 RWHP. NOTE: All units are available in either 2wd or 4X4. If you have a special application requiring a special adapter or output shaft, please contact us and we will be happy to provide it and quote a price for your special application. YEARS: 1989 to 2008 4L80E transmissions ..., Absolutely stock, about 400-450 HP. With proper hydraulic modifications during rebuild, about 750-800. Above that it needs a billet input shaft and forward hub. I have a manual control box that plugs into the outside and 12V Ign power to make one fully manual. Easily reversible to computer control., I daily'd 5psi on the stock W59 5-speed and bone stock rear end until I upgraded to the W58, which is the same case basically but different ratios. I am now at 22lbs of boost, beating the **** out of the truck and racing it in autocross, and the W58 and stock 7.5 rear end with 4.11 gears and Detroit Tru-Trac LSD handle it no problem., Apr 11, 2009 · A well built 4l60e can handle some serious power. We have cars running 500-600 and 700 rwhp as the power increases of course the odds of failure do increase but we have had very good results. Generally a stock rebuild is not adequate for much more than general bolt ons however. Like. N. , Apr 21, 2017 · 2850 posts · Joined 2010. #3 · Apr 22, 2017. my stock trans with a shift kit held a little over 300whp with a 2600 stall converter for 2 years. when i did my rebuild i was making just a little over 400whp on a patc level4 kit. i did end up getting come codes and pressure issues with my pcm that limited me to pushing the trans to its full ... , May 7, 2022 · Reads 148. A stock 4l60e can handle up to about 600 horsepower. However, there are many aftermarket options that can greatly increase this number. For example, there are upgraded input shafts and output shafts that can handle up to 1,000 horsepower. There are also transmissions that have been built specifically for drag racing that can handle ... , As such, there is some “head room” in terms of power capacity. As long as there is no excessive wear inside from high miles or neglect, a good 5-speed Allison can hold about 100 more horsepower than stock. While that does sound like a lot at first, just consider a custom tune can easily add more than 130 horsepower, getting you well into ..., Absolutely stock, about 400-450 HP. With proper hydraulic modifications during rebuild, about 750-800. Above that it needs a billet input shaft and forward hub. I have a manual control box that plugs into the outside and 12V Ign power to make one fully manual. Easily reversible to computer control., As such, there is some “head room” in terms of power capacity. As long as there is no excessive wear inside from high miles or neglect, a good 5-speed Allison can hold about 100 more horsepower than stock. While that does sound like a lot at first, just consider a custom tune can easily add more than 130 horsepower, getting you well into ..., Run first at 7 psi and a soft tune on pump E85 (our low-buck race fuel of choice), the turbo 4.8L produced 576 hp and 525 ft.-lbs. of torque. Equipped with the BTR stage 2 turbo cam, the naturally aspirated 4.8L produced 409 hp at 6,600 rpm and 367 lb-ft of torque at 6,100 rpm., what can the stock 8.8 rear end handle? Jump to Latest Follow 39K views 9 replies 6 participants last post by markwondi Nov 29, 2005