806 97-98 aluminum perimeter bolt 5.7. Premium stainless steel 2.02" intake M-6507-A304 and 1.60" M-6505-B304 exhaust valves. A set of AFR 185,s would wake the motor up and a roller cam unless it has one allready. Ranking of small block Ford cylinder heads flowed at 28" water column differential pressure. If you have any SBF flow data please send a copy to Tom Rauch 371 Dean Rd. . Street is a . intake and 1.? Stock 351W (C9, D0, D8, D9 castings) Cost per pair: Varies Material: Iron Combustion Chamber Size: 60-69cc depending on year. Here is a list of a known production casting #'s: 933 97 aluminum perimeter bolt 5.7. I have flow results for bone stock 4V close chambered heads, going from memory, I know they were max'd at 260 on the intake and 165 on the exhaust. I had a set of 049 heads , i had 2.19 and 1.88 valves in them with bowl blending and gasket match. Put another way, the 304 cfm head would support 2 . It is a 347 currently and I am running the AFR 185 heads. This makes the 351W head a nice performance upgrade for a 289/302 engine if you want a stock look and factory iron heads. Lift value: Intake Flow CFM Exhaust Flow CFM have a set of each and have measured combustion chambers with h2o.the best proforming 302 heads are c8oe-f with a 53.5cc chamber but smaller valves than 351wheads.c7oe,c8oe,c8ae,c8oe all have 63cc chambers and small valve but are good stock replacements . Oct 20, 2002 #4. Chamber modifications are critical to the Ford heads. . My knowledge is about the same as your on the SBF's but I do know the C90E-B or D, D0OE-C or G, D0OZ-C and the D5TE-EB heads are pretty good. Fits 302/351 Windsor engines. 302 explorer short block with roughly 80k miles. ALL Gen III heads are interchangable. Add a bit of home chamber polishing and a 3 angle valve job and you have a decent set of heads relatively cheap. I'd love to see the two compared, so as to see at what point in lift, the 2.02 1.6 heads gained flow. Not in Stock. Up the compression ratio near 10 to 1 for a carb and 10.5 to 1 for EFI. How ever, They need to be matched up with the proper engine combo to see any gains. 3 EDL-2924 Edlebrock 351/W Super Victor 297 CFM 350 CFM 385 CFM 410 CFM. Cylinder Head Bolts, High Performance, Hex Head, Ford, 351W, with Stock, Edelbrock Performer, RPM Heads, Kit. Details. Dart Iron Eagle Cylinder Heads. I have some gt40p heads that I was going to enlarge the head bolt holes so they would fit a 351w. They are bench tested at .28", flowing 235cfm intake, and 181 exhaust at .500. FordMuscle Banned. Small valves, huge chambers, small ports, you name it. The most desirable 351W head castings are C9OE-B, C9OE-D, D0OE-C, D0OE-G, and D0OE-C. best et 11.13 and no head problems yet to date. Dec 19, 2002 69 0 0 California www.fordmuscle.com. Before I do, I wanted to know if they would bolt on the the '87 roller 5.0 block in my 1994 Cobra. 650 holley double pumper. The increased flow of the 290cfm heads made 400 hp and a 450 lb-ft of torque-these numbers are comparable to the best big-cube engines of the '60s musclecar era! 437 HP and 461 Tq out of a 351W. Stock valve sizes are 2.? 351 Windsor blocks upgrade easily. After adding the TFS Track Heat heads, the power numbers soared to 439 hp and 437 lb-ft of torque. Looking at my SBF book, the early 60.4 heads will raise the C.R. 2 EDL-2980 Edlebrock 351/ W 290 CFM 330 CFM 350 CFM 370 CFM. Heads are cast with high-flow ports. If you're building a 351W, it's important to know which head castings work best for your Windsor. Dart Iron Eagle cylinder heads will give you the performance you want at a great price. Yup, they put dish pistons in from 1971 thru at least 1982. Our . Economical heads for a street engine or a budget race engine. Stock 351W crankmodified for . The exhaust side of these stock heads is weak. cam ,2800# mustang. Cylinder Head Flow Data @ 28 Inches of Water. HEAD SPECS. 302 GT40 Dyno Results. With our CNC Sportsman Porting the intake air flow improves to 210 cfm and the exhaust will flow 160 cfm. They feature thick port walls (extra meat for porting! CFM measured @ 28" of water. I did. Designed to fit 260-351W small-blocks from the mid-'60s right up into the '90s, these heads feature Pro-E engineered combustion chambers and heavy-duty valve springs for reliability at higher RPM and better horsepower and torque than stock Ford heads. Accepts any existing Windsor style intake manifold. 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. Includes: Please call 812-576-2371 for details ask for Preston. Cylinder Head Innovations for 302w Heads & 351w Heads. A stock S/R head flows 195 cfm intake and 135 cfm exhaust. GT40's from a local u pull n pay ($97) weiand x-celerator. Head gaskets Intake gaskets Exhaust gaskets Head bolts . #D-747-1 for 1996 and earlier Ford 289, 302, and 351W engines. Estimated Ship Date: 1/10/2022 I had a 351w with 11:1 compression and home ported '69 heads (real close to GT-40s) and it was a great car to raise hell in. 70 Mach 1 351C-4V automatic (wife's car!) Jan 12, 2004. Stock 351W - Ford D0OE * Flow data for this head from an external source. These heads are probably fine for most of us who don't have big cube, big cam . of torque. flow numbers follow: . Spring Options. Stock refers to a factory cast head. CYLINDER HEAD SPECS. For the street, velocity is the key to overall performance. Certain Twisted Wedge 170 heads are emissions-legal under CARB E.O. The Ford E7TE head appears to be very responsive to some basic porting. I think that was at .600 lift. My 351w is a 1974 with stock heads and pistons. 10 deg locks, bigger dia springs, 7/16 studs and 1.6 harland sharp rockers. Air Flow Detail #205 BBF C Style Head - 420cc Runner. EXHAUST FLANGE:Stock port location. Price: Starting at $1,766.00 A Pair. Gasket matching as you call it, opens up a substantial amount of extra exhaust flow if you blend it all the way into the chambers. Trick Flow twisted Wedge 11R heads are machined for 1/2 in. CNC Sportsman Porting to 289 / 302 or 351W factory Ford castings. Some of the rocker studs were damaged in shipping so I was planning on returning them. I want some better than stock heads on my 351w build. As far as cast oval ports go, either the 049 or the 781 head will do, both pretty much the same head. Prior to 1975, 351W head castings had 18-mm tapered-seat spark plugs. In the Gonkulator, I assume those heads flow the same as any early vanilla head up thru c1ae-a or c4ae-g heads, since the ports/valves are the same. All of those have 60.4cc chambers and stock 1.84/1.54 valves. A set of AFR 185,s would wake the motor up and a roller cam unless it has one allready. No swirl numbers available. So, to get an idea of what constituted "good" flow numbers versus "bad" flow numbers, we started compiling this chart. The 351W head casting looks virtually the same as a 289/302. We chose the most popular factory castings. 351W Ford Small Block V8 Cylinder Heads in-stock with same-day shipping. Run on the 331, the stock 5.0L head produced 353 hp and 399 lb-ft of torque —pretty good given the lackluster flow numbers. you can get an e7 head to out-flow a stock gt40. Home ported D0OE 351W head flow numbers. The Edelbrock #60255 Performer RPM cylinder head is designed for use with 289-351W c.i.d. 20 degree inline valves. Barnesville, GA 30204 Don't let the size fool you, flowing over 260 cfm, this head makes real power. Like AFR's other SBC cylinder heads, the Enforcer is available in both straight and angled-plug configurations. N351 cylinder head has been retooled and is now in stock and ready to ship. ), enlarged water passages, multi-angle intake valve seats, hardened and radiused exhaust valve seats, bronze valve guides, and heart-shaped 64cc or 72cc combustion chambers. any turbo carb for a 351 should work fine with the blow through setup. 289 & 302 engines with 7/16" head bolts use 1012543708. 1 . One last point, at your lift, a stock set of 351 heads likely flow 170-ish on a good day, I think that sounds like a good little engine for what you have in it. Jump to . BES does not build winning combinations based on flow numbers, but, everyone asks for them as a baseline, and that is why we are posting them. For example: A large port and a big flow number at 0.600" lift means low velocity (especially off-idle to 3500 rpm) and results in less throttle response. With our CNC Sportsman Porting the intake air flow improves to 210 cfm and the exhaust will flow 160 cfm. 351W can use stock 7/16" head bolts.Washers are . Cast from prime A356 T6 aluminum. The flow numbers for Modern Cylinder Head were from a number of different sources, their Web Site updated Nov. '08. Developed by Ford Racing with the help of Robert Yates •Machined for 2.02" intake and 1.60" exhaust valve diameters COMPARE PEAK FLOW AND LOW LIFT FLOW Cylinder Head buyers have a tendency to only consider peak flow numbers. Sold individually. 3. exhaust ? While the gains are becoming smaller and harder to come by, non the less, they still keep coming. Part Number: ARP-154-3603 Head alignment dowels- TFS-51400420 A.I.R passage threaded inserts- TFS-51400265 Head gasket kit for non-O-ringed heads- TFS-51400904 Head gasket kit for O-ringed heads- TFS-51400905 Important notes: Trick Flow cylinder head airflow chart (as cast). I am building a mild combo and wanted to real world proof of what others have made. they flow good and dont cost too much and can be modified to flow even better easily. Pro Filer C Style Big Block Ford Heads with 420cc Intake Runner, 2.450" Intake Valve and 1.850" exhaust valve. My combo is 94 roller block, spreed pro trw 2446 4.030 pistons, stock crank & rods, trick flow stage 2 cam, canfield 190cc heads, trick flow R intake, 75mm TB, 24 or 30# injectors (i have both), etc. Stock flow numbers routinely vary from head to head and port to port so it is inevitable that the numbers will vary a little. (Sold in Pairs) $ 838.00 - $ 1,340.00. Other options include Edelbrock's 351W truck lower (PN 3884) with a 5.0 passenger car upper (Performer PN 3822 or Performer RPM PN 7125), and Trick Flow's 351 EFI Manifold (PN 5150000-4), which includes the upper and lower (also available separately). Like both of the other small-block options, the SBC variant features 2.020-inch stainless intake valves and 1 . Stock crank ground 10/10 Stock rods ground/polished side beams and used Arp bolts Heads are iron World Sr that have been bowl ported, bigger 2.055 intake valves and 1.60 exhaust valves with a much better valve job than they come with. Valve springs are suitable for most hydraulic flat tappet and mild street hydraulic roller camshafts Way ahead . gt40 heads are a fair bit better than stock un-modified E7 heads especially with more lift. . Demonstrating that the stock 4V heads had much more power to offer, the cam and intake upgrade increased the power output by nearly 100 horsepower, pushing the peaks to 452 horsepower and 412 ft.-lbs. A useful tool for calculating the power potential of cylinder heads is the following formula HP=.257 x (peak) airflow x number of cylinders. I think they do but I'm not 100% positive. Street: This is the really the category of interest as it consists of the most popular aftermarket replacements. 1978 - thru 1988 heads jumped to 69 CC's. Its all in the port and bowl work. N351 cylinder head has been retooled and is now in stock and ready to ship. And what should pressure drop in H20 be set at 20 or 25?, im dynoing a combo for my buddy and his F350 . Flow numbers will vary from bench to bench. Stock/Ported.10 - 58.7 / 63.20 - 105.6 / 116.30 - 152 / 169 . AFR's 165cc "Street" cylinder heads are the preferred choice over re-worked factory heads. CNC Sportsman Porting to 289 / 302 or 351W factory Ford castings. The stack added 11 HP and 17lb/ft of torque. well i finally did my first ever carb build, ive always been an EFI guy . Reference from: lucky-lotto.be,Reference from: www.theperfectplace.ca,Reference from: 02athletics.com,Reference from: solcommunications.org,
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