How much horsepower can a stock 351 windsor block handle From 1969 to 1971, the 351W Ford engine was rated at 290 horsepower, making the 351W engine the perfect starting You save $275. The dz 302's although rated at something like 290 hp actually ran over 400 hp. 030, and from the stock 3. If you have any questions, please call us at Five Star Engine and Cylinder Exchange (623) 939-0345 or call toll-free at (888) 700-3483, business hours 8am – 5pm M-F MST. 5:1 CR. Unless you are planning to pump 800-900 hp out of it, I wouldnt worry about it. -9. Despite being a tuned-for-torque, truck combination, the 351W offered a I pulled everything off of it until I only had a short block, checked the bearings, installed a new rear main seal and went from there. I've seen a stock block and stock cast crank 351 Windsor make 882 horses on the dyno before, but I'd say thats skating on thin ice!! I think you can make 600-700 reliably on the stock Dec 30, 2011. You’ve got the venerable Windsor small block, plus the 385-series and FE-series big block branches, along with a trio of 351 engines—the Tech-Sheet. 5 deck, which is what allows for the stronger rods. Ford is telling there usual nonsense stories about cooling on the street. 155 I believe so you have plenty of room to rebuild. To achieve a true 800 hp in a 408W, you need a power adder (No2, blower, turbo). With a 9. •. Standard Ford 289 and 302 small-blocks were factory-rated between 200 1969 Ford 351W Specifications. For the second test, the Coast High team took the Holley Hi-Ram off and put on the Edelbrock Super Victor Jr. The stock SD system will not be able to handle stroking a 302/351W as Blade said. What it means for you is mucho torque. A 393 can be pretty inexpensive to build. I've seen 351's handle almost 700 HP. Peak Efficiency: 78 percent. SO what all should one do to a 351 if they have it apart, to make it reasonably reliable Before we lay the heads on this block, we want you to see what a difference 4. 1979 - 1995 (Fox, SN95. 125-4. Dyno proven to pRoduce 40+HP over a standard prepped pRoduction block. of peak torque using a Trick Flow by Quick Fuel 950 cfm carburetor. Rush, NY. The combination of bolt-on mods and boost represented serious changes to the Ford 351 Windsor we secured, but similar upgrades can be applied to just about any popular V8. 508"nominal) Joe-JDC. I. There were two versions introduced in 1969, the 250 hp 2 barrel engine and the 290 hp 4 barrel version. Our goal with the project is to make an engine combination that is simple and easy to I was wondering what would be the "best bet" between rebuilding the stock 289 and putting a 512 lift cam, a victor jr manifold, and a 650 dp holley on it, or rebuilding a 351W with the same cam but a performer rpm manifold and a 750 vacuum secondary holley. The 1975 and beyond were 351M’s. I split a stock 351w block down all the main bolt holes, that was a 410w with a 150 or 250 shot of juice I cant remember what I spraying. As a point of refference the FRPP 392 made 552 crank hp with a stock block and AFR heads. The 351W is part of the Windsor V8 engine family, an informal name given to the engines produced out of the Windsor, Ontario manufacturing plant. Aug 4, 2012. FRPP Z2 Cylinder Heads For 289/302/351W SBF. The 460 block works well as a 545, and with the Kaase P51 heads makes an effortless 600 horsepower. The early 351W was an 8-cylinder engine with a 351 cubic-inch displacement. But as far as I know the 1969 and some of the 70 blocks, being the first of the 351W blocks made were the only ones with the extra meat in the cylinders. A 1,050 cfm Holley Dominator was tried to add more top-end horsepower. 040 thick gasket my program says there will be around 11. 030 bore and a shp block can go to . The cam duration @ . 8" that will not be able to handle it. See all 22 photos Comp Cams provided the solid roller It's ASK ROGER time! We just uploaded the latest ASK ROGER video and are pumped to announce our first WINNER! Congratulations to Jerad White on getting selec After replacing the factory EFI upper and lower intake with an Edelbrock RPM intake and Holley carburetor, the stock 351 produced 254 hp at 4,400 rpm and 352 lb-ft at 3,300 rpm. 8 liter has one of the longest production runs of any Ford engine today Our 5. -Windsor Sr heads 955-053040-2 (I would have preferred aluminum but they are still a 200cc intake port, 2. Properly built, stroke and 351w to a 393 and it can make an easy 450 to 500 HP. The max lift was 0. Cast from prime 356 T6 aluminum. O. 5 inches. 5,136 Posts. 2. 50 is 216 intake/228 exhaust. The ticket is in using the right parts (like a forged crank and rods) and a meticulously ballanced bottom end. 3:1 compression. 155 are just fine on the street, again Ford Racing phone jockeys are just plain ridiculous sometimes. Just go 351 windsor if you're worried about breaking the 5. 060" over. 351W Cylinder Heads. Fits 289/302/351 Windsor engines. Our 351 Windsor Long Block Crate Engine is on sale. I would say safely 600hp possibly more , and even more if you use main studs and a girdle. The 351 Windsor, or 351w for short, is one of the greatest engines Ford Motor Company ever produced. Use a 302 pump with the inlet correct for your radiator on the 351 or you will need to pay a rad shop to move the lower radiator hose. 1,442. I am just concerned about the stock block holding up or not. Now the 351w stock block can handle 750ish horsepower, but how about a fully stock rebuilt short block with a current rebuild, how much would that be able to handle in a boosted application approximately? This is on an early 351w block, the stronger version. SO what all should one do to a 351 if they have it apart, to make it reasonably reliable Yeah if you add any boost to it, it will be a ticking time bomb. 2 If your using a stock windsor block, the block itself is the issue WAY before the crank. I agree with Dan lots more material in the 351 blocks . A simple head swap would get you more power, yes. Part of the 90 degree small block V-8 family of Ford engines, the 351 Windsor reached its peak stock horsepower in 1969 at 290. CNC Stroker clearanced for most 408/427 Stroker kits providing the ultimate in easy do-it-yourself Stroker engine assembly. 56 gears vs C-4 and 3. Cleveland engines share a bellhousing bolt pattern with the Windsor family. The 351 Windsor is a 5. It'll take a lot more than a stock 5. How much power can a 351W block handle? Thread starter IndyBlk5. 500” (351w) deck height and a choice of 4. Code you will be looking for in a 1970 block would be D00E After 1970 Ford revised the specifications including the block height. 5's in the 1/4 and could of taken it but that one run where things went wrong made it die. 94 @ 137. Save. 48. the stock 302 blocks can take up to around 500HP with girdle and properly prepped block, you can get a R302 or A4 block, a 4bolt main, and they can handle 600+ HP with girdle and proper support. I’ve done a lot of research on the 351 SBF in preparati Opinions vary on how much HP a 351 block can handle, most estimates are around 650 or so. 00! Level 20 CNC prepped 351W pRoduction block, uses 1 piece rear main seal. 351 Cleveland mounts use two bolts to attach ATK High Performance Engines HP81 - ATK High Performance Ford 408 Stroker 480 HP Street/Strip Stage 1 Long Block Crate Engines. The folks at Kiwi Customs built a stroked Ford 460 big block for their 1966 Mustang SEMA show car. Arkansas. Tech-Sheet. I beleive they were 2 bolt in 67 and 68. 351 Small Block Dyno Shootout: Windsor vs Cleveland. (9. Videos: Only show this user. With AFR 185 heads and a CompCams XE274HR you could expect 470 HP/470 tq and 10. 500” - . Really depends what type of power adder you are wanting to run. Heads retain Ford OEM intake and exhaust port location and flange. 25:1 CR speedpro hypereutectic pistons. . In stock form, the SHP block can handle stroke all the way up to 4. Aug 27, 2004. Pistolpete. The generally accepted figure is that you'll be in the "sooner or later" power range when you get above 550. 0; Start date May 26, 2004; Forums. It was introduced in 1969, and got its name from the Windsor Canada location of the Ford assembly plant that built them. Plus you'll only need it to be . 0 block. 8 liter 351 Windsor Short Block Engine is on sale. Running Holley HP EFI management, sans turbos, the 351 Windsor dyno'd at 409 horsepower and about 405 pound-feet of torque The Ford 351W or 351 Windsor is classic American muscle. 0 out of 5 stars. 0 inches with a stroke of 3. Not all these blocks are still available in 2009 and as Dan indicated, sup-ply can be spotty at times. 84. 750” (same as stock 351W) Main bearing bore same as stock 351 Windsor Main bearing bore same as stock 351 Windsor Main bearing bore same as stock 351 Windsor Deck Thickness . ARP studs were chosen to help maintain good cylinder-head seal. Part Number: HPE-HP81. 000-inches of stroke makes. If you go 30 over on the bore to 4. With this set up, the 408 cid Ford Windsor cranked out 532 ft. The SHP Ford block is tailored to the most popular performance and racing applications, with an 8. 250” (same as stock 302) 2. 200″ (351c) or 9. ( 1 ) Core Charge $410. Info. I ran a Cam Dynamics 290HP cam on my 1969-351W with stock valves and springs back in HS. If they are filled and have 4 bolt splayed caps, they can handle upwards of 1000 hp. I'd go with the 185's, the 210's right now would be too much considering the rest of the engine. By 1997, fuel system improvements along with many other improvements resulted in peak horsepower of 210 at 3600 RPM, with 330 lb-ft of torque at 2600 RPM. The 351W is easy to find and not rare. 00 in the coupe. I should not expect more than 5psi drop between same oil weights though. I think about any 351 block will take whatever you'll make with an SQ trim strapped on as long as the tune is good. “With a Windsor, the 408 and 418 work very well. The first 3 are non-siamese; the rest are all siamesed blocks. The engine for all tests went from 3,500 rpm to 6,500 rpm. ” Dyno testing and tuning over a period of a few days produced a 735 peak horsepower and as much as 614 ft. 0, & 2. 351W Stack injected. Despite being a tuned-for-torque, truck combination, the 351W offered a Loads of 2 bolt small blocks were raced all through the 60s. 02/1. A two-piece Performer RPM II upper and lower intake topped the E-CNC heads. They are used in every brand of race car imaginable. The limit on a 302 is 600hp. Im picking up a Windsor this weekend. That was pushing the max lift you could get and I remember feeling bad about not putting aftermarket springs in because the extra lift and wilder cam profile made it valve float A full-blown porting job and larger valves will give you torque you never dreamed of from a stock head. Using some original parts and aftermarket heads and intake, the guys transform the Windsor into a better-performing Clevor (or mock Cleveland). 00 $1,595. EFI intake with a 90-degree elbow and the 102mm strong 302. All dyno testing was done with NGK BCP6ES spark plugs, Torco TR-1 conventional 10W-40 racing oil, a 50/50 mix The windsor block is also a 9. 000” or 4. Here's what I'm running: -D4AE-DA block, . 203. 5. 2,965 Posts. To start a stock 390 block was rated at 375 hp with 6090-h heads mostly unless you had a gt 390 with gt heads I think was 6090-R . I know of one 351W stock block in oval track that split the block from the front to rear. This indicates a decrease in the friction of the lubrication system and not a flow problem. As a 351W, this engine had 3. A stock 351 shortblock would be ok for turbo boost, as it is low compression and very tough set of rods and crank. -stock crank and rods. of torque at 5,200 rpm and 579 horsepower at 6,500 rpm. Definitely a lot more than a 302 block. If we step up and use a Dart block, 467 is about the limit. Bone stock - runs better that my coupe - but the 4 speed is the main reason with 3. 00. 0 inch on the stroke, you will have a 408, which is about as big as you can go without running into other issues, like needing to clearance piston skirts and the like. Big bore block 4. ( makes getting the right pistons from the states fun!). It is one of Ford’s longest running and most successful engines to date. 8L. P. Part 2 of HorsePower's dual Ford 351 project, as the guys complete the build of a Cleveland engine and then turn their attention to the Windsor engine. ·. The 94 roller 351 block I had in my coupe recently did fine at 628rwhp . Our Race prepped PRoduction Three Easy Visual Differences Between the 351C and 351M. If you can't afford to go that big you can still get decent numbers on a stock 351" motor. High hp motors aren't cheap man. 85 LTD exFHP 383 Windsor/Vortech T trim 9. 1,000 horsepower, 91 octane, and reliability are all words that you normally don’t hear together. -lbs. Mustang Forums. Pulled up to the light the other day and a 3 year old on his big wheel looked over at me and then at the light. 512 exhaust. 0 H. Good Before we lay the heads on this block, we want you to see what a difference 4. The most important issue to remember about 351W heads is which ones were just 302 heads on top of the 351W block. This popular 5. 560” . Here goes for all 351's, all with the M-6010 prefix: B58; 700hp@7,000. Running Holley HP EFI management, sans turbos, the 351 Windsor dyno'd at 409 horsepower and about 405 pound-feet of torque its not that i dont know anything about building motors ive built over 40 small block dorfs its just that some blocks can handle more hp than others ive seen stock blocks go into the 9s and then Ive seen stock blocks fail in the 11s blown nitrous and na-----OUTTA THA DRAMA R. The 351 Cleveland is heavier and more difficult to find hi-performance parts for nowadays. But that is exactly what we are going for with our 427 cubic inch small block Ford destined for our ’65 Mustang we call “Biting the Bullitt”. The 351 Windsor’s were first offered in 1968 (1969 for Mustangs) and used in Ford trucks up into the mid-90’s ( and 1995 Cobra R Mustang’s). (1985-95), but they still don’t compare to a modern aftermarket block. Intake ports feature a unique “Velocity Vane” in port floor to direct airflow around the valve stem – that leads to more HP and torque throughout the full power Our starting point was a stock '69 351 Windsor, originally rated at 290 hp (gross flywheel). The first years of the 351 Windsor engines were quite impressive with horsepower ratings reaching into the 300 range. 437 HP and 461 Tq out of a 351W. The 351M, as it was known, was the only 351 option until 1980, when the 351 Windsor was introduced. I made 711 hp at 6400 rpm with a Yates Wedge cut head on a 463 Clevor. 94-95 306, B-Cam, Off-brand BBK Like Headers, H-Pipe, 3. 030 in. You might be able to get 400 HP (not rear wheel Hp) out of a stroked 302 crate motor from Ford, but the C6 auto can handle up to 700 HP. The 351 Windsor, as one might guess, is 351 cubic inches, or 5. If you're conservative with the rest of the engine according to an article in 1969 by Roger Huntington a stock 351 windsor made 210 hp at 4300 rpm's. The maximum horsepower attainable through a stock 351 Windsor is a matter of debate. Though this small block is a platform capable of much greater performance, you can easily modify it to make more horsepower and In the case of the small-block Ford Windsor (including 302 and 351W), that limit is about 300-500 horsepower depending on the block you’re using. The stack added 11 HP and 17lb/ft of torque. Motor Mounts. Any stock 351w block will easily handle 600hp. See all 22 photos Comp Cams provided the solid roller . Only show this user. Max Power: 775 horsepower. Feeding the Edelbrock intake was a 75mm Accufab throttle body. Over 35 blueprinting operations. You could add 6090-N heads which were 428 cj heads and a cj aluim intake with headers to boost a 390 pretty well . 351W. M351, N351, R451, R452, S351, V351, W351: 750hp@8,600. This long-runner intake offered a nice balance of torque and top-end horsepower. The engine produced 300 horsepower at 5,400 rpm. Wanting a Ford, we selected the 351 Windsor over the smaller 302 for two very important reasons. The 351 Windsor engine is an 8 cylinder, 90 degree, overhead valves (OHV) engine. If you switch from a 302 to 351, watch the inlet for the water pump. 0 block and they start to split around the 600 hp threshold. might as well get a good block and be done with it. It was running 9. Due to a higher deck, the 351M’s intake manifold is wider than a 351C. Some people run stock blocks at 650+ forever, some get 4 passes out of a 500HP engine - your mileage may vary, for sure. Max Boost: 26 psi. The 351 block has the same mounts as the 289/302, but is 40 lbs heavier. Most agree that 500-600 is easily and safely attainable without risking damage to even the later ‘standard strength’ blocks. 560”. 6" valve head with 7/16 studs and the bolt holes are 1/2" for the 351w). These newer blocks are supposely only able to survive 450 hp at the crankshaft. I had at least that at the flywheel of my 306 No issues with the bottom end or block. is the best for Any performance engine. I meant to say in my orginal post that I plan on achieving the 800hp with 150-175 shot of nitrous, which is allowed in the cheap street class I plan on running. 48 deck height, 50cc chamber, and . The 1980 351cubic inch engines both offered 136 horsepower until 1983 when the 351M was phased out and the 351 Windsor got an increase to 150 horsepower. Your stock 8" was considered insufficient by Ford for duty behind a 289 Hypo which (although rated higher) probably only put 200-220 HP to the rear wheels. There was an article in Hot Rod magazine in the mid ‘80’s where Jon Kaase was developing 351w packages. #4 · May 23, 2011. The stock crank, rods, and pistons were all still The 302/5. Jim :green. 5 psi brought 719 hp and 687 lb-ft of torque. Piss on the big block. The early 351 Windsor's ('69-'74) can be machined to take splayed 4 bolt caps, with the '69 and '70 being the best blocks to machine. Main Bearings 2. There are a lot of 500-600 hp 302's running around out there with essentially stock bottom ends. Or you can contact us through email at: fivestarengines@yahoo. Max Flow: 1,150 cfm. EFI intake with a 90-degree elbow and the 102mm Its under-plenum air gap makes for hard cold-starts, but a car driven only in warm weather could become King of the Windsors. 484 intake/. A bone stock 2bbl early 351w with stock replacement forged pistons (9. 73's, Nitrous Wet Shot 175 Shot. I'm running a mildly built 351w in my '79 and it provides amazing low end torque, and roughly 300hp/400lb-ft. IF you feel insecure, go with a stud girdle for the bottom end. Truckflow 190 Clevland heads = $2,000. Don't know what you are building but maybe consider an SHP block if you are getting into that power neighborhood and adding spray. 200” (302), 9. MIKE STARKEY MY BABY BROTHER 12/8/77-5/17/03 But as far as I know the 1969 and some of the 70 blocks, being the first of the 351W blocks made were the only ones with the extra meat in the cylinders. Fordnatics recognize 1969-1970 Boss 302 blocks and most 351 blocks as being stronger than the 5. 2,418. Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 408, Each. 125” siamesed cylinder bores which can safely be bored to 4. Stock - vs stock - stronger than the 351W - but 351C Cobra-jet 4-v has big valves and 4 bolt mains - sorta a lower compression Boss 351-C - rare engine. Those 500-600 hp 302's were just that, 302's, not stroker engines. Earlier high strength blocks regularly reach 800 – 1000 horsepower without damage. As for the build im only using the block, olus: SCAT rotating assembly = $2,000. A stock 351W block will handle around 550hp, maybe a little more with a main girdle. You can read the details here. The fact that I now know a 351 can hold 700hp, I beleive I will get a 351w and start a build. Intake ports feature a unique “Velocity Vane” in port floor to direct airflow around the valve stem – that leads to more HP and torque throughout the full power Live. Finally, they added a 1-inch open carburetor spacer and reached 595 hp at 7,200 rpm. (Image/Summit Racing) The Ford V8 engine family tree has a lot of branches. Pushing over 1,000 hp on a stock block pickup engine? Sure, why not. A Ford 9" is the "Holy Grail" of all muscle car rear ends. The tired Windsor put out about 200 rwhp, or slightly more than a bone-stock 5. Using Your stock 8" was considered insufficient by Ford for duty behind a 289 Hypo which (although rated higher) probably only put 200-220 HP to the rear wheels. 50-inches of stroke. #3 · Oct 1, 2007. 8L truck motor, but Edelbrock saw some real potential in that short block. The 1969 Ford 351W displayed a maximum torque of 380 foot-pounds at 3,500 rpm. If you want more torque this block will go 427 and 434. 351C likes to split bores at Joined Dec 7, 2005. The 185's are a big improvement over the stock 351 heads. 351M engines use the bellhousing bolt pattern of the 385-series Ford big blocks. Either way, after 550hp it becomes a track oil down waiting to happen. Member: Mustang Club of America #82740, White Mustang Registry #362, NMRA, Fun Ford Weekend, Mustangs of Burlington. The 351 Windsor engines that were produced from 1969 to 1974 are generally considered to be much better than the later 351s. The long-lived Ford "Windsor" engine, displacing 351 cubic inches, was available in performance applications such as the Ford Boss Mustang in 1971, and today is available in a crate-engine version which features up to 535 horsepower. 480" vs 9. 490" at the valve with factory rockers. A year later, the 351 high output (W HO) was offered and with 210 horsepower it was the most Pushing over 1,000 hp on a stock block pickup engine? Sure, why not. 302, 351C, 289 - all cast about the same. 8L small-block V8 engine produced by Ford from 1968 until 1997. As a proven engine builder, John can advise you on the best course of action for your small-block Ford. 0-liter, but less than a Joined Mar 19, 2011. Share. #6. 0 compression) and dyno headers made 211 Hp/353 tq. 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 material around the main webbing, where it's most important for high hp. Probably 700-800 hp. 250 inches. 3L) -General/Talk- Synthetic oil is more slippery, so that is why it may have lower oil pressure than regular. 351 Windsor Long Block $2,395. Steel main caps are splayed 4-bolt on the center three and 2-bolt on Only show this user. Starting at 7 psi, the turbo 351W produced 631 hp and 608 lb-ft of torque, while stepping up to 10. overbored stock block, stock length 351W rods, and stock-type 302 pistons. plus everything else I will need, Cam, intake, and 750 Holley 4bbl will make that $5,000 plus everything else the engine requires. 185”. That was pushing the max lift you could get and I remember feeling bad about not putting aftermarket springs in because the extra lift and wilder cam profile made it valve float Synthetic oil is more slippery, so that is why it may have lower oil pressure than regular. Good The combination of bolt-on mods and boost represented serious changes to the Ford 351 Windsor we secured, but similar upgrades can be applied to just about any popular V8. Pretty much any 351W block should handle 700 hp, however there are a ton of factors which may kill one +/- that mark. Obviously Ford was more concerned about torque production on the 5. Depends on the block casting, etc, etc. Just remember detonation can kill anything even at lower hp levels. The Ford Motor Company built the first 351W in the mid 1970s and continued to produce this engine Engine comes with a one year, unlimited mileage written warranty. The only custom piece you really need is the crank -- the rest of the combination uses a . The engine block has a bore of 4. The loss of ~1 point of compression will cost around ~30hp but I was aiming for around 11:1 to enable 94 octane running. I've never been able to break a 351 block, and have never met anyone who has, but I hear those hp numbers all the time and they sound reasonable. The lift is . 500 FRPP Z2 Cylinder Heads For 289/302/351W SBF. How Much Horsepower Can Your Stock Power Stroke Handle? If you’re looking to more than double the horsepower of your Power Stroke, we’ve got you covered. I plan on finding out just how many passes a stock Windsor block motor can take at those levels. The early blocks have a shorter deck height, so be aware of that when sourcing a good block. It's the stock Dana TTB 44 and Ford 8. The stock crank, rods, and pistons were all still The chart below it is the same motor with a carb and performer manifold. They were last built and offered in Fords in 1974 (1973 for Mustangs) . com. 5 inch to 4. I hope I can compete with the new 09 vettes coming out with there stock 650hp rating. I pulled everything off of it until I only had a short block, checked the bearings, installed a new rear main seal and went from there. #2. 1. 0 based engines will literally crack in two pieces right down the lifter valley/main webbing saddles when they start reaching the 600 horsepower level. Here, with the Coast High Performance kit from Trans Am Racing, we have a full 1/2-inch of additional stroke. Reply.


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