69 windsor heads flow numbers. They flow just a tad better than GT40 irons, or GT40P's. Stock dove with stock type replacement sbi valve, 1/2 radius flow guide, 4. 66 x 0. Ofcourse well prepared stuff can hit 240/160 cfm using an intake volume around 160cc's. plus the old school 351 heads have press in studs which flat out suck. Most flow numbers for BRODIX heads come from their '98/'04/'06/'08 Catalogs. 500 valves unported. 1988 Mustang LX Hatch. Nov 19, 2004 · Mark, You'll be over 300 HP. 90 Out of the box. Kaase’s P38 heads fit the 302-347 and the 351Windsor blocks as well as Dart’s successful 427cu in aftermarket unit. A. 06/1. 205cc SBF Competition Cylinder Head. The date code of 6 Jan '69 would indicate it was for a Change Level 5 engine (Jan - May '69). 6 rockers. 500" lift. 500" lift at 28 inches of water, all numbers are cfm. So here goes. Hyd. Jul 23, 2008 · C6, 9 inch rear. 7 cc was the spec) with valve diameters of 1. I have had all the fixturing and stuff for the sf-600 for a while now, but just hadn't gotten around to doing any testing. All of Mar 28, 2006 · Cougar Forums. Horsepower (with full length dual 2. #5 · Jun 24, 2005. This is one of my major gripes with everyone posting numbers. 72 inches. The 351 Windsor has a displacement of 351 cubic inches or 5. Flow on 4. Most flow numbers for BMF heads come from their Web Site updated Aug. At a slightly more realistic lift of 0. 100 66 cfm. after 2 years of running the guides are pulling out and the seats are falling out. Jan 31, 2004 · 69 351W head flow numbers? Thread starter paintballtommy; Start date Jun 27, 2004; P. I've seen some with just mild porting flow over 270-280. 094) bore to 632BB (4. The seats come roughed in to accept 1. 10 Gear, Weld Draglites, Manual Rack Jan 17, 2012 · 190 posts · Joined 2012. Cast out of iron, the bare block weighs in at between 150 – 200 lbs depending on the year. Flow Numbers for World Products Windsor Senior Heads for a small block Ford. They have the bigger valves and ports, BUT they need hardened ex seats installed to run unleaded fuel. 200 144 cfm. 050 inch or more). plus a boatload of parts. 72cc. 90/1. 59 Meteor 2 dr. AFR's 205cc "Competition" cylinder heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. 5" exhaust) is about 395 at the flywheel based on the last Nov 15, 2002 · 55 posts · Joined 2002. Comes with 2. 6 is more like it. Ford Windsor, 185 cc Int. 18 @ 134 with a 1. Jun 5, 2011 · The ports and valve sizes are the same 69-76, yes, the 351 heads match what are sold later as the iron GT40. thats old shcool mechanic stuff there. 19 inches Exhaust - 1. I have a rough idea, so an actual flowbench reading, not guesses, would Mar 16, 2022 · 15109 posts · Joined 2011. 600, the out-of-the-box heads flowed 296 cfm, which means they worked Oct 14, 2006 · 1966 Mustang, 1972, 73, 73 and 73 Mavericks. Heads to be used on my 351W build. Classic Cougar Tech Oct 20, 2004 · A. Dec 30, 2008 · Ivy66GT. I ported a set of '70 351w heads and wrote a post on the home porting forum on this site. 2350 posts · Joined 2001. 78 & 1. boasts 200cc ports and 64cc exhausts ports, which flow a substantially larger volume of air than any OEM Ford head. Tracy Blackford, 65 Mustang FB, 331 built with 289 H beam rods and 383W piston, 282S cam, ported Promaxx 180 Dec 11, 2006 · 509 posts · Joined 2002. . I had the 68 302 4V (J code) heads on my last engine. woody1. 2. Oh yeaI used the 670 holley too. Jan 1, 2019 · I would change the springs. Featuring 220cc intake runners, this package is recommended for race applications and radical "Pro-Street" builds. O. Stock type pistons, . In Stock (more than 10 available) Oct 30, 2018 · A customer brought in a set of Afr 220 competition cnc ported heads for me to flow here are the numbers. 6 Exh. Tracy Blackford, 65 Mustang FB, 331 built with 289 H beam rods and 383W piston, 282S cam, ported Promaxx 180 Aug 4, 2014 · On these heads, the installed height of the intake valvespring is around 1. The right intake, valvetrain, and camshaft needs to be in place for any head to reach it's potential. What I wanna know is about how much hp will I be giving up trying to save $500. 750" (1 3/4") Apr 6, 2021 · Interesting test. Feb 3, 2022 · Production casting part numbers: 1969 - C9ZE-6090-A or C 1970 - D0ZE-6090-A or B. Crane 1. AFR 185, expect roughly the same results. GenX 255 heads are available with standard and 6-bolt per cylinder mounting patterns. Apr 17, 2009 · Some bolt on aftermarket heads that are essentially ready to go, may not seem like so much money after all. and now CURRENTLY have 2-66 galaxies, 3-65 falcons, 1-66 comet, and a 71 maverick. Jan 6, 2019 · 1973 - 1979 F-100 & Larger F-Series Trucks - Engine Gurus I need a little help - after 4 years im finally moving foward on the engine build on my 79 flareside I HAVE a 69 block and heads for a 351w its a 9. 5, 9 inch, Long nose, Torque worm 235-60-15 rear, may go 245-60-15 I am currently on the road; Mustang Owners Museum opening, Charlotte, NC, currently on way home to SoCal Feb 16, 2007 #3. This is the first set of heads I've done. The flow differences from a 396BB (4. 300 - 227/150 66% . 7 Rockers, Victor Jr Intake, Demon 650 Carb, MSD, 3" Hooker Max Flow Mufflers, Manual VB AOD w/Transbrake, 3200 stall, 4. Mar 7, 2003 · I used the ported 351w with large valve flow numbers from the previously mentioned article and I used the stock GT40P numbers from the same article. But the second chart specifies 239 and 168 respectively. 1970 Intake - 2. . They are bench tested at . Jul 29, 2011 · When fuel-injection joined the 5. 90 Aug 14, 2013 · When Kaase first conceived the P-38 cylinder heads for Ford’s small-block Windsor engines, they were created with high performance in mind. Jan 15, 2010 · There won't be any performance gain. 54" exhaust valves which are both bigger than previous 289/302 valves or future factory small block heads. 300 209 cfm. 120 x 3. 2L engines. Using the unmodified figures from the last 4V CC head engine I built, 9. GT40P HEAD Intake 196 Exhaust 139. A typical stock 351 intake port (C9 and DO) with a typical valve job maxes out around 180 cfm (28"). There were two versions introduced in 1969, the 250 hp 2 barrel engine and the 290 hp 4 barrel version. #2 · Mar 16, 2022 (Edited) 351 Windsor heads breathe better than 289/351 heads, but they are still pretty anemic. Will make similar but slightly less power than a GT-40 head stock. Add a highly efficient combustion chamber design and larger valves, and you CYLINDER HEAD SPECS. 528 gross lift). 00" bore or bigger. 45 x 1. sedan 332, Ford O Matic. 54 exhaust valves. 600 intake and 166 exhaust. Comp 972 double springs with damper. intake valve depends on performance on the heads it in the coil springs the tensions and how much faster the valves open and close. thats what makes the performance happen for the combustion chambers. 8 @. JonnyRebel, May 6, 2007. On a 302 5cc is around a point of compression. CHI also offers a number of other intakes for use on Jan 29, 2008 · Early 351W heads can be ported to work fairly well - not as good as the best aftermarket heads - but pretty well. Cylinder Head buyers have a tendency to only consider peak flow numbers. 0 Fords. 60-inch exhaust valves, but there's sufficient clearance for 2 The 351 Windsor engine is an 8 cylinder, 90 degree, overhead valves (OHV) engine. Edelbrock Performer RPM Air-Gap. 600 so I'll have those figures next week. Complete flow numbers are: Feb 27, 2009 · Out of the box Edelbrock Performer RPM vs. 5" street mufflers (400 cfm each), and got 330 FWHP using Engine Analyzer 3. Example: I have "x" cfm flow rate now with the stock part. 700 since thats usually the standard most heads are checked at. 3-145 131. Exhaust: 208 @. Runner, 64cc Chamber, 2. The heads I use right now are ported, polished, chamber matched with 1. 48 deck and ive speced out a rotating assembly for a 393 stroker its a nodular 3. #12 · Apr 4, 2011. I noticed that the 428CJ iron heads had very different flow figures than the C8OE-N heads, which I find a bit odd, since C8OE-N heads ARE 428CJ heads!! 428 powered Fairmont drag car, Best ET: 10. Jack Roush Racing designed this high density cast iron head to be the most powerful head for 5. 1503 posts · Joined 2001. 4:1 Comp. Vehicle: 1972 Maverick 4 door, 347 stroker, c4. The stock stroke of the engine is 3. 2004 new OEM Vortec 4. 45". #23 · Feb 14, 2011. 100 valve. 4-191 154. Heads must be used with a minimum extractor primary pipe size of 1. Above you see a casting with a D1ZE part number. Another budget 331 here hand ported E7 heads, stock valves, 10 to 1, E303, performer rpm efi. Trick Flow GenX 255 cylinder heads are emissions-legal under CARB E. Ford’s part number convention generally follows the format of a four-digit casting code, followed by a four-digit basic part number, which will be “6090” for a cylinder head, followed by the revision version. Now if you put in 2. Sep 29, 2007 · by Syclone0044 » Sat Sep 29, 2007 8:03 pm. I mainly wanted to see what they would flow at . 400 259 cfm. 41@127. Ford Racing 178cc PN M-6049-X307, $1119. 0. Jun 27, 2004 #1 May 3, 2020 · The ‘69 up to around ‘75 or ‘76 had the bigger valves (1. Feb 1, 2009 · All testing was performed on 91-octane pump gas. That's better than the AFR 225cc race Windsor heads in the graph above despite having smaller port volumes (note the AFR claimed exhaust flow numbers are quoted with the aid of a pipe, without the pipe expect Flow bench numbers should not be the primary concern when purchasing your next set of cylinder heads. Like I said, I'm looking for a baseline. Unless you're going to port them, or you simply want to lose 50 lbs. 28", flowing 235cfm intake, and 181 exhaust at . 3. remember that the P head has a slightly different exhaust flange shape and headers must state they fit the P head to work. For the LT1, this would be a valve diameter of 2. 472/. I took your specs and powerheads flow numbers, assummed 9. 5:1 heads of nominally 58 cc (56. They do use the small 14MM plug but they are capable of making some power. Feb 7, 2007 · 69-70 heads are the only ones worth using. The guy checking the flow didn't have time to check them @ . This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with . What you see below is basic specs and the original years they were used. the exhaust around 120 cfm or so. They have 60cc chambers and 1. Once again, if the heads are reworked at all, all bets are off. W. mouse77 said: Hey guys, Anyone have a link or real world (no pun intended) experience with the flow numbers on the SR heads? 1. 100 lift up to . 1416 = 6. The ex ports need the thermactor bump removed from the roofs of the ports to really gain any improvement in flow. May 9, 2007 · I did a bunch of flow tests on 3 sets of stock 1966 289 heads and got basically those numbers (none had the exhaust port thermactor "bump"). 625 bore, 28 inches h2o. 69 351W HEAD Intake 181 Exhaust 114. 200 - 159/111 69% . 87@138. 3L V6 Chevy cast iron truck heads going on my 91 GMC Syclone which came with the "TBI/Swirl port" heads (ugh). 2-99 89. 750" lift is 331 CFM. 780/1. #5 · Jun 6, 2005. That's true, but flow is still VERY important. The ports and valves are the same, the chambers of the 69-70 heads are slightly smaller and therefore make more power. I believe the gt40 mountaineer heads have 1. 1969 Intake - 2. 512 230@. The heads are only as good as the total package. 5 with closed heads you will need the pistons sitting at zero deck and the chambers less than 66cc. When you scale it down, it would be like a 117 cc head on a 289 (stock 289 heads are ~135cc). Aug 18, 2003 · They respond really well to porting. LS engines will require a Hogan Sheet Metal, Billet, or modified cast intake manifold. #3 · Sep 11, 2006. It was introduced in 1969, and got its name from the Windsor Canada location of the Ford assembly plant that built them. #3 · Nov 1, 2010. lower the spark plug number the hotter the plug, higher the colder the plug. 289 are supposed to be around 54 that year and 351 60cc. The Dart Pro 1 head has bronze valve guides, 62cc combustion chamber, single pattern exhaust bolt holes, flows 258cfm @ . just flow numbers alone dont dictate how good a head is,low/mid lift flow, port velocity,chamber shape, cross section, swirl, material all play a part in its performance than just flow alone. Roller . Depending on price theres much better nowadays even used ones. Some from their Web Site updated Aug. 476 but very long duration 290/300. '69 F150 stepside, Post your flow numbers from Oct 1, 2004 · Michael Yount said: Sounds like you've figured it out - the heads are the LEAST aggressive aluminum head for the 5. 90 Oct 3, 2003 · automotive proctologist: let me fix your rear !!!! I've built and sold more than 5000 rears to date. 91 60ft. 050 and . Using a valve lift of 0. An extra 24CFM will really help a guy sell heads! Jun 24, 2005 · 7296 posts · Joined 2003. Default factory tolerances will put the number way below that. They are available fully assembled or as bare Aug 2, 2009 · Ive seen some numbers where they can flow upwards if 240cfm on the intake. At 14 psi I ran 10. Maximum intake flow potential @0. 1 67. 1967 Falcon 4 door 351C - 70 Mustang 351C. COMPARE PEAK FLOW AND LOW LIFT FLOW. 20@131. 700. We have seen benches off 6 to 8 %. The "other" car: 10. You don't need the head bolt bushings either as you can use Hardened 7/16" head bolt Option 1: 58cc. I just wanted to remove the minimum amount of material to remove the major obstructions Location: Clearwater, FL. Comp 280H Magnum, hydraulic cam: . Jun 17, 2005 · The heads you want to look for are C9OE or D0OE casting numbers. The 69 351W heads are a small CC combustion chamber head that will be a good improvement over untouched GT40P heads, of course they are not going to outflow even a cheap set of aluminum's but I would run them all day long on a budget engine. 35 mustangs, 8 cougars, 20 torinos, 11 comets, 3 fairlanes, 30+ galaxies, 40+ 69-76 police cars, and a 52 henry J. Option 1: 58cc. #8 · Nov 15, 2002. They don't have hardened. 600) bore would be substantial testing the same Find Trick Flow® Twisted Wedge® 170 Cylinder Heads for Small Block Ford and get Trick Flow Makes Serious Horsepower! Trick Flow’s legendary Twisted Wedge® 170 series cylinder heads are better than ever! The A356-T61 aluminum castings have been redesigned on the exhaust side to improve strength and water jacket integrity for durability in street and entry level strip applications. I find a product with 'y' cfm rate. 60 valves. bigger valves and smaller combustion chambers and are basically the same as the gt-40 heads. FordStrokers. 05/1. Oct 21, 2010 · Like the heads, the intake was turned over to the flow experts at Dr. Jun 12, 2003 · The other chart has "stage 1" porting which means different things to different people. #26 · Oct 1, 2013 (Edited) I have a buddy with a set of pro comp 210s 20* inline sbf heads and bare they are around 4. paintballtommy Member. Nov 26, 2008 · Flownumbers for three heads at . I read that 351W heads flow the best at that lift/duration. 625 valves (for nitrous) or my preferance would be 208/1. 600" lift means low velocity (especially off-idle to 3500 rpm) and results in less throttle response. 74 F350 ramp truck 390 4speed. 600 (the installed heights can vary by 0. Js to ensure that the manifold could keep pace with our ported 3V heads. 600 312 cfm. Our largest and highest flowing head for the small block ford is the best in-line head money can buy. 54 valves and screw in studs. It has a distinct firing order from the other Ford Small Blocks, 1-3-7-2-6-5-4-8 vs 1-5-4-2-6-3-7-8. Jan 12, 2003 · mstngjoe. Equipped with the as-cast 190 cc heads, the 408 produced 463 hp at 5,600 rpm, and 480 lb-ft of torque at 4,300 rpm. Oct 17, 2001 · I've got those roller tip rockers on my '69 351W, I'm making about 350 hp with stock heads, I went with a lower lift cam . Recommended for race applications and very agressive street/strip builds operating up to 7400 RPM. 050 offset intake Oct 14, 2006 · 1966 Mustang, 1972, 73, 73 and 73 Mavericks. I think the AFR flow 297 at . Accepts any existing Windsor style intake manifold . You don't need the head bolt bushings either as you can use Hardened 7/16" head bolt Oct 1, 2007 · Not a problem, as the TFS-R heads offered much more than big peak flow numbers. For the street, velocity is the key to overall performance. 6, hand blended 66cc. 6" lift on a conservative bench. Sep 30, 2004 · The Windsor Jr. Old School Cortina: 9. 11 31 spline DL, comp cams solid, pro-systems 750DP, Vic Jr. 992 posts · Joined 2006. Id say there is a few more CFM just in the valves and valve job. 6-220 159. May 4, 2002 · I believe the Windsor Sr heads are diamonds in the rough but they do need work to flow the number needed to exceed the AFR 205s. 1978 is when the Windsor heads went to the 69CC chambers and small valves. 02 Int. 66 inches. been into fords and mustangs since age of 11. Why don't more people know about the 71-75 heads, because they're fixated on the 69-70 heads. Jun 3, 2003 · I just had my 351C 4v heads flowed yesterday. 1416) to establish the valve circumference. Stay away from D8OE heads, they have large combustion chambers and small valves in them. They have 1. #18 · Jan 21, 2012. 1149 posts · Joined 2010. They were also obliged to be user-friendly. 955 Jul 29, 2013 · cab0154. Porting for Power ! NOT Flow Bench Numbers - Click Here for more info RECOMMENDED USE AND INFO: Suitable for 363+ cubes windsor stroker engines. Vehicle: 72 Comet. All Cleveland. My other videos on these heads: Polishing, smoothing and de-shrouding May 18, 2010 · Casting numbers start with a C9OE. They are fair heads now but were the best Ford windsor small block heads back then. When it comes to high performance replacements for factory cast iron heads, World’s WINDSOR SR. 050. They are unported. Starting all over, Again!!! Numbering Convention. (leaving the line at 14psi is a freaking blast) This was with an X cam. I just looked at these heads at the local parts store, and believe the numbers -especially the second set. Then multiply that times valve lift to establish the flow curtain area. 0 under the hood of Fox Mustangs, the only hot-rod cylinder-head option was a set of '69 351 Windsor heads with C9 casting numbers, or, in a pinch, '70 Windsor Dec 26, 2023 · Nominal chamber volume is about 58 cc, which is about equal to most 302 heads. 59MPH, best 60 ft: 1. Part Number: SUM-162SBF185WIN. The heads just need some cleanup and smoothing. 7-209 158. /1. 2:1 CR, windsor sr. Swapping on the CNC-ported Mar 19, 2007 · This flow testing all got started with a friend of my brothers wondering how good his dove heads were. Gasket matching like what you have done is virtually worthless. 5 = 3. Summit Racing™ Precision Cast Cylinder Head SUM-162SBF185WIN. 1-67. 5lbs lighter than my rhs 215s because the casting is so porous. Jun 15, 2010 · Flow numbers AFR 235cc intake runner 70cc chamber tested on a 4. com : Owner. Share. Since it’s fairly obvious that you’re looking at a cylinder head, the important digits are the first four Jun 13, 2010 · 1515 posts · Joined 2009. Stock LS3 ports accommodate LS3-style intake manifolds and LS9/LSA blower assemblies. The most benefit from "porting", is not actually "porting", but valve and bowl work. There decent. 94-inch intake/1. 600 intake and 215 exhaust vs the blueprint flow 240 at . 295rwhp, 345tq, it had a little left on the table, the air/fuel ratio wasn't too spectacular. 800 329 cfm. Recommended for street, towing, or Apr 5, 2010 · C-Head Flow Numbers Ford C460 Head Courtesy of Charlie Evans 45-degree seats 2. Despite the 289 High Performance head’s reputation for rarity and value, much better aftermarket heads are available. 54) and typically low to mid 60’s cc chambers. 8-208 158 I know some of you were interested. Cam lift is 573/581. These folks do CNC porting on heads and have their flow numbers posted on-line: Small Block Ford 289 - 302 - 351W "Early" The biggest restriction is on the exhaust side where there's a ruddy great thermactor hump in the middle of For example: A large port and a big flow number at 0. The results are below: GT40p heads peak horsepower was 310@5000 with 363ft/lbs@3500. 030, four valve reliefs. The stock heads are basically identical to early small chamber 289 heads as far as flow goes. Heads, XE282HR Cam, TFS 1. 0L. GOSFAST said: In order to have accurate flow numbers on ANY head you have to know the bore sizes (fixture size) on the flow bench. I have no idea on what my heads flow though, sorry. 66 289 heads are more queched than the 351-68-74 head both being closed chamber. heads, comp cams xe264, 1. I'm surprised that the 220 cc head doesn't do any better than the 165, because the 165 cc is really small for a 408 CID engine. That is why we supply these before and after charts and again, all flow benches do not flow the same! Benches can show a difference of about 3to 5%. Most flow numbers for CANFIELD heads come from their Web Site Aug 4, 2014 · On these heads, the installed height of the intake valvespring is around 1. 5 inches and the stock cylinder bore is 4 inches. #12 · Dec 12, 2006. 60 naturally aspirated, the flow numbers would go up from the added amount of metal removal in the bowls and short side. 3-194 Feb 27, 2009 · Out of the box Edelbrock Performer RPM vs. AFR's 227cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. 94 1. go with the gt40 setup. When I had them done I used 1. Nov 26, 2002 · Location: Warren Pennsylvania. Actually that was a set of P heads, with full out port done. Feb 1, 2008 · Thanks. 500 290 cfm. They flow better than the later year heads (except for the Lightning’s which had GT40 iron heads), but the engines was choked with a very low profile intake and pretty terrible exhaust manifolds. Not Yet Reviewed. 780 inch, but the exhaust is less at roughly 1. Even 220 cc is not very big for a 408: it's like a 155 cc head on a 289 (like a GT40P head). The worked 351 heads showed peak power of 328@5000 and 380ft/lbs@3500. 49 Exhaust Jun 29, 2012 · de[ends if your engine running either too hot or not enough hot. I'd take factory 4bbl heads over the Edelbrock's any day. AFR's 165cc "Street" cylinder heads are the preferred choice over re-worked factory heads. The 1975 351W heads have the same chamber and valve sizes as the C9 D0 - D4. 365 HP at 5-5500 RPM and 400+ ft lbs of torque with a smooth idle at 650 RPM. Windsor Sr. 33 square inches. Apr 26, 2006 · My small port C302B street heads flow 331 CFM intake and 228 CFM exhaust (without the aid of a pipe) at 0. like in a Aug 10, 2003 · That casting number (C90E-6015-B) was used on blocks for 69/70, right around there should be exact casting date-look for what like two slotted screw heads(one at each end) with something in the format of 8B23 for example(as the date code). I'd go with the '69 351w heads. 2-135. Jan 31, 2004 244 0 16 concord, ca. Aug 14, 2007 · Hi folks, Dynoed my mild 351w yesterday, lot of potential there Holley 650DP, 4777. 32. If the head is truely what you say it is, the exhaust bolt pattern will be the same as a stock 351C best I remember. I found a reference list online for all Ford OHV cylinder head castings. 155 bore fixture Intake 2. 5 give-or-take a 10th. The combustion chamber size also increased to 54. head bolt holes- reducer sleeve if 289/302. 65@119. Most 289 heads after alot of miles have sunken vavles which lower compresson up to a point. As far as I can remember the early 351W heads were like early 302- large (18mm?)spark plug threads. 400 - 285/183 64% Dec 21, 2003 · The heads from a windsor motor I hear will fit with minor mod's to the intake bolt holes and minor gasket matching. 227cc SBC Race Cylinder Head. 5:1 compression and good flowing 2. By the time you paid to have the 351W heads machined for screw-in, adjustable rocker studs, replaced the Jun 6, 2005 · blkfrd. 500-inch we get 6. 100 shot of NOS with old 306 = 11. 5-221 158. GT40 HEAD Intake 192 Exhaust 128. 8% at 300CFM is 24CFM. I edited out all the numbers that weren't Ford small blocks and that is the list below. 700 323 cfm. Jul 20, 2014 · Trick Flow heads w/studs Trick Flow roller cam Single plane, air under runners Fitech rail injection, 80# injectors Two wire distributor, timing controlled by Fitech AODE 3. Nov 1, 2010 · 17973 posts · Joined 2007. 84/1. 23 inches Exhaust - 1. 900 327 cfm 1. All flow numbers for Bullet Cylinder Heads come from their Web Site updated Dec. 5 cc for 1964. owned approx. Bolts on to any 289/302/351w, 351C, and LS Chevrolet engines, 4. Found some of what I'm looking for here: Stan Weiss' - Cylinder Head Flow Data at 28 Inches of Water I know stock numbers are crap compared to aftermarket products. 8 liters. 7 - 59. Intake: 329. The chambers cc'd out at 53. E7's are junk, thats why you have no problem finding them for free. 1-54 50. 84 int/1. The numbers are coded to show the year. Said to be "overvalved" for street performance. 155 bore Intake. Aug 18, 2003 · As for DIY porting; yes, it's a well know fact that anybody can port their Windsor heads for more exhaust flow. My motor runs awesome, great throttle response, excellent torque. '09. Available with 58cc or 72cc combustions chambers, you can further customize your setup with our various Jul 2, 2019 · First multiply the intake valve diameter times Pi (3. of engine weight (my reason), almost any other aluminum selection flows noticeably better. 450 inches. 500" lift (Different numbers from two different sources. According to the Mannel SBF book C90E-E were '69 (only) 302-2V, 9. 88 coupe, 351 cleveland, unported 4V heads, buddy rawls custom solid roller, diamond domes, 6'' h-beam rods, stock 4bolt block/crank, holley strip dominator, 950HP Nov 19, 2004 · Mark, You'll be over 300 HP. 200”/1. 84" intake valves and 1. 5% at 300CFM is a difference of 15CFM. Like. , World Windsor Jr. In general, the heads were put on a 331 and i'm using a 282S Comp Cam (236 @ . head bolt holes- reducer sleeve if 289/302 Part Number: SUM-162SBF185WIN Not Yet Reviewed Jan 10, 2023 · These Ford heads tied with the Edelbrock heads for third place in average torque and were extremely close to the RHS head's second-place power level. Available with 58cc or 72cc combustions chambers, you can further customize your setup with our various Sep 11, 2006 · 347, world jr heads, TKO600RR, 4. #7 · Jan 12, 2003. '12. #D-747 for 2007-present GM vehicles with 6. But the 71-76 351W heads have larger chambers, and while this usually isn't a problem, many folks prefer the 69-70 head for its smaller chamber to make compression easier to get with popup pistons. 87 GT- F4TE 351w roller 9. Beginning in 1964, Ford increased the small-block Ford valve size to 1. In 97 I converted my 91 to a 174 B&M supercharger and a holley 950 hp, Had a DSS short block and the Windsor Sr heads port matched only. They came in '69-'76 351W's. Im looking more specifically for at what lift the flow starts to dump out. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout, in addition these are the only AFR heads that are compatible with the OEM piston valve relief. 4219 posts · Joined 2002. 331 Stroker, 10. Casting numbers are C4OE-B, C5OE-A, and C5AE-E. Dec 1, 2005 · I just ported the exhaust side, out to the diameter of the exhaust gasket holes, and blended it in towards the combustion chamber. 155 bore no exhaust pipe INT EX. Jul 8, 2009 · Note - to get a true 10. #2 · Oct 20, 2004. 650” Competition Stainless Steel valves. 8041 posts · Joined 2008. 00 319 cfm 345 fps a center for pinch 392 fps at center peak of short turn CSA at the pinch 2. Jan 10, 2023 · These Ford heads tied with the Edelbrock heads for third place in average torque and were extremely close to the RHS head's second-place power level. head has steel valve guides, 58cc combustion chamber, dual pattern exhaust bolt holes, flows 202-214cfm @ . ProComp 185cc, 2. Serious porting is a HUGE improvement, but that's labor intensive and labor is very expensive. 7RR, professional products typhoon intake, 24lb injectors, and probably many other Mar 17, 2011 · Here are stock flow numbers from Procomp 190cc windsor heads with valves from procomp flowed on 4. 85 crank, forged i beam 5. 500. The BOSS 302 heads used some of the biggest valves in the industry. 600 Lift, 351W 1/2 in. I've got about 15-20 hours into them. gr se qg au xt aa ps sd wa al