04", and opening the lower right corner, began to produce only very small improvements in flow, and as the velocity map shows, velocity began to deteriorate in some areas. -----83 mustang, carbed 302, ported gt40s, 1. The T3 strokers came with (very) roughly ported GT40P's. New plates on the way. The SCJ head rocks as delivered and is a great street head especially on a 500 inch or bigger combo. If you use this intake with heads that flow more than 210cfm, then you will benefit from porting the lower intake. 837 int valves and 1. im just trying to decide which ones were best in stock form so i could try to figure which ones would work better in ported form. Again Duhhhh! When they pulled the cast manifolds off, you could see the huge sooty rings where the exhaust manifold was smaller than the port in the heads. One last item I'd like to cover regarding flow numbers is the intake to exhaust ratio. Less weight, probably the same power. So if you aren't going to port stock heads yourself, you are probably better off buying some used aftermarket heads. 0L in the new daily ghia has lost all oil pressure, it has been going strong for about 12 months now but just yesterday morning it threw the warning light up and i shut it down after about 60 secs of running without pressure while trying to see if it was just a sticky sender unit. 536 exhaust valves. But as soon as i get my flow numbers of the ports i finished i will know forsure and i will post them. This is adequate for ported E7 heads or stock GT40/GT40P heads. 400 inches of valve lift have taken place (see Fig 1). The prize in heads (S/B) is how far they can go in ported form and how well they balnce out between the intake and exhaust ports.



600" and exhaust doesn' * I believe the 1 port tested for the ported 1. Porting out the main number will usually unsubscribe the entire line, disconnecting the secondary numbers without moving them to the new provider. Stock air flow on this head tops out at 190 cfm intake and 128 cfm exhaust. The lower was ported by tmoss, and looks like golf balls would flow through it. I do have the tops of the bores relieved for the bigger valves, and hopefully that will. Pro Filer Sniper Big Block Chevy Heads with 320cc Intake Runner, 2. Super Prepped Heads: 6/27/2018 CNC SUPER PREPPED HEAD (updated6/7/12) Mopar Muscle Magazine asked us to send them a tech article on these heads and we thought it would be a good thing to adapt it to our website so that you could see what you will get when you order these heads. Port volume: I=180 E=165. Lindsey Racing heads are professionally machined and ported to perfection and then flow tested to prove it, each and every head, guaranteed! If you want the best, you found it. 0L/302 Trick Flow Specialties Cylinder Heads with Aluminum Cylinder Head Material and get Free Shipping on Orders Over $99 at Summit Racing!. Stock flow on cylinder #5. ported heads will add more than this, but they do so with larger port volumes (boss heads have the same runner volume as gt heads). 70" valve at. I made a post a few weeks ago showing the pictures of the heads after porting, and they were just flowed. Contact: www. there are no #s for the stage 2 My heads will be Ported on the exh side and polished bowl clean up and polished. This is getting the most I possibly can get out your heads. Combos running our Race ported manifolds and stage 2 ported GT40/GT40P heads are runningHigh to Low11s with bolt ons. (His brother uses AFR 165 heads, Performer intake and E-cam with 1. your REAL email address.



That's ignorance in action -and all of the Pontiac magazines are guilty of not educating you any better. Within a general area of approx 190-200 cfm intake. We want the best flow number's with the smallest volume and the highest velocity. Results will depend on how well the heads have been portednot to metion cam and compression. We're getting better flow numbers out of them (Profilers) with the 420 cc port, than either of the sets of flow numbers that E. flow results, again I have been able to keep the port stable and I made the valve guide shorter so I could test higher in the lift range, I could get a test up to 725 thou of lift. Again Duhhhh! When they pulled the cast manifolds off, you could see the huge sooty rings where the exhaust manifold was smaller than the port in the heads. 0 ohv iron 302 sbf gt40p v8 cylinder head no core - $455. 5 hp vacuum cleaner motors), two graduated vertical manometers to measure atmospheric pressure, an incline manometer to measure actual airflow, and a velocity probe. The reason for spread port heads is to achieve additional cooling in the center of the head. 57 stainless steel valves. P4452748 318 C. You may have to register before you can post: click the register link above to proceed. Back cutting the valves 28 to 30 degrees is a huge bang for the buck on any Buick, big or small block. Over the last 15 years I have used many different combinations of components and port designs in the quest for the best flow numbers while keeping port velocity up. com site are generated at 25" H20, which is not a standard test pressure. The castings were ported differently one to focus on high lift numbers and the other for mid lift flow.



The port cross-sectional area for this head is substantially larger than its predecessor at 2. 27s, Powertrax Locker, A9L w/Moates QuarterHorse, Innovate LC-1, James Duff traction bars, iDelta DC Fan controller Admin of EECtuning. I will show numbers for 601 with mild porting no raised ex or intake runners and some much more ported 601's with same 1. 00 labor only to 1 pair of heads. 0 Flow website is just getting started; check back often for details on spectacular projects from the past and present as we get more details online. Build a High Power Flow Bench Flow Performance flow bench kits are a perfect core for building a high performance, high power professional flow bench. The next step up over GT40P, GT40, or D0OE heads is aftermarket aluminum like Trick Flow, Air Flow Research, Canfield, etc. This intake has been welded in the corners to allow further porting. If a cam with poorly chosen valve timing events is selected for a large port/volume head, it may not make as much power as a iron GT40 with an optimal cam selected. 450" valve lift INT. 500-inch lift on the exhaust port. Stock flow on cylinder #5. this head fits years 95-01 explorer mountaineer mercury mountaineer. Check out the flow numbers in that giant chart. com site are generated at 25" H20, which is not a standard test pressure.



Flow Performance products utilize the power of personal computers, the Internet and email to provide powerful air flow measurement, analysis and control. Ported and polished GT40P heads will run right with box stock AFR's as long as the right cam is used. Here is Bulltears True Eddy flow numbers: Here is a set of Edelbrock Performer RPM heads for the AMC V8 vs. 2L engines, this port shape is also used on LS3 engines and some 6. SBC 180cc - View More Details SBC 200cc - View More Details SBC 220cc - View More Details BBC 290cc - View More Details BBC 315cc - View More Details BBC 320cc - View More Details BBC 360cc/133cc - View More Details BBC 360cc/121cc - View More Details BBC 375cc/127cc - View More Details BBC […]. Power carried well up to about 5,500 rpm and the numbers peaked at 243/292. I talked to the Flowroute Number Porting team (yes, we have a Number Porting Team) to find out where ports are typically held up. Number Porting: An Easy Way to Keep Your Numbers If your company is thinking about switching to a new phone service provider, it's understandable you'd want to keep those trusty phone numbers that served you so well over the years. 0L truck engines, as well as the Corvette ZR1's LS9 and Cadillac CTS-V's LSA supercharged engines. If you have the stock short block you will have 9. I'll need your real email address though to send as an attachment. ) Check the Trick Flow site. 84-inch intake valves will also flow 185 cfm at 0. If you are broke as a joke then scape together $275 and pick up a set of GT40 irons. The Cobra intake has average flow of 205-210cfm. 536 exhaust valves. They were cast differently then the later heads but still have the same port and chamber volume as any other LS1 head. What are your favorite airflow formulas? How does porting a four valve head differ from a two valve? Air Flow Testing Tools: Flowbench - Best? Cheapest? Building your own?.



Like the other rectangular port heads from Mast, these also boast an 11-degree valve angle and. and Windsor Sr. I was going to sell my VR-4 last year and install a V-3 Vortech, but decided to stick with the Paxton until at least someone makes me an offer I can't refuse to sell it =) Anyway, I wanted to share a little bit of Tech #'s from my setup so some folks out there who have questions about the performance. Blue Thunder has long been known as a leading manufacturer of high performance cylinder heads for 460 Ford high performance and racing engines. I personally change my idea of ported e7s to gt40p, I have a choice of using my fully ported stock intake, matched to 1250 gasket with the 65mm tb, intake was ported for that to, or my fully ported FMS cobra intake with 65mm, 1. E303 cam, ported gt40p heads, 1. The following information is provided just to help give a basic understanding to consumers and enthusiasts, plus hopefully stimulate future studies. My ported heads (which I recently sold ) flow-benched at 320 @. You may have to register before you can post: click the register link above to proceed. flow 350-360 cfm at 28", with a 2. Product Description Ford Racing Short Headers These M-9430-P50 shorty headers for GT40P heads from Ford Racing are a direct fit for your 1979-93 Mustang and will increase your Mustang's performance, save weight, and improve exhaust flow!. Not sure what the AFRs' will flow ported and polished. Total Engine Airflow is constantly adding new products. 536 exhaust valves. 0L/302 Trick Flow Specialties Cylinder Heads with Aluminum Cylinder Head Material and get Free Shipping on Orders Over $99 at Summit Racing!. UC-GT40 "UnderCover Porting" to GT-40 heads $995.



o intake to a set of gt40p's from the junkyard after i get some money and yank the heads and put new seals in them and upgrading the springs!. Six-head-bolt provisions come standard to match aftermarket blocks and provide extra clamping force. New LT1 and LT4 ported cylinder heads are also available in the online store. Then why did you port the heads and how do you know if you made an improvement. I think that was at. Be prepared for a big price tag at the dealer or steep core charge from your head porter. As I've mentioned before, I ported and flowed heads and manifolds for all types of engines. Lindsey Racing heads are professionally machined and ported to perfection and then flow tested to prove it, each and every head, guaranteed! If you want the best, you found it. A Ported Kawasaki Cylinder Head can help improve performance with stock cams but the flow gains are better realized when the correct cams are selected. They'll flow more than the GT40p heads would flow even with a top notch port job thanks to larger runners, bigger/better valves, and better port design. 73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. the Intake side will be clean up with a 80 grit sanding roll. Flow number and performance will be the same as the LS7 CNC ported cylinder heads that we use in our 630 horsepower & 660 horsepower C6 ZO6 Corvette engine packages. Trick Flow 215cc GM LS Cylinder Heads, PN: TEA-LS215TF-CUSTOM. [MC] "Your setup is almost exactly what I'm running. 0L in the new daily ghia has lost all oil pressure, it has been going strong for about 12 months now but just yesterday morning it threw the warning light up and i shut it down after about 60 secs of running without pressure while trying to see if it was just a sticky sender unit. 11/03/95 ported GT-40 heads Flow Summary and 08/21/96 flow valves were used resulted in truly great flow.



Unported or mildly ported Canfields also make excellent street heads when used with mannerly combinations in the 500 to 550 H/P range. Fuel Moto offers comprehensive in-house cylinder head services for late model Harley Twin cam engines. -----83 mustang, carbed 302, ported gt40s, 1. I made a post a few weeks ago showing the pictures of the heads after porting, and they were just flowed. Cylinder heads involve a lot more than just rocker arm ratios and valve spring installed heights. By contrast, the 823, rec-port heads featured a 2. Power carried well up to about 5,500 rpm and the numbers peaked at 243/292. I've heard numbers as high as 220cfm on the intake port of GT40p heads (stock is around 185cfm) with 200cfm being fairly easily attainable. Flow data listed on the www. Or you could just buy aftermarket heads and get better results out of the box. "What do they flow" and you're ok hearing one peak number. Porting and Flow testing GT40 heads through the whole process and put numbers down with it. Knowing how the customer will ride the bike. Ported Number: Ported numbers are those that have been assigned to other LSPs providing recipient switch access for Portable exchanges. In addition, the quench pad has been relieved around the exhaust valve as per the AFR head shown in Figure 4. The exhaust port is a unique D-shape that improves flow.



88" exhaust valve. Therefore flow gains on the intake side are minimal, Edelbrock data shows only 5 cfm gain at. In Canada, pocket pager answering services are exempted from all local number portability requirements. West doesn't provide citations for his flow numbers, so it's not easy to verify them. The numbers are there and have been proven as an AFR 165cc head flows slightly better with a 1. GT40p head flow at. 500 a good way to figure horsepower n/a is to double the intake flow number's cfm and that's a ballpark of the hp level that the heads are capable of with n/a. GT40-P flow numbers ? just seein if anyone knows where i can come across a flow chart comparing ported stock heads vs. "except little higher lo lift flow" i only rounded the short side radius, but if i can get to those numbers i'm really going to port some moore =). Check out the flow numbers in that giant chart. The Blue Thunder 460 cylinder head is available in six configurations. This is commonly termed as the numbers assigned to the "Recipient" switches. 750-inch deck from their clean-sheet casting design. FLOW Jamaica Stores Listed for Easy Location Finding a FLOW Store in Jamaica is super hard. Sold 2001 GT BULLITT #00762 stock. See also: Complete Cylinder Head Assemblies. The flow out of the box just isn't there for larger than 302ci motors. As time went on, more people experimented with ported stock parts to keep the budget down and still have a respectable street/strip car. E7 Heads ported will outflow GT-40's stock but they can't out perform GT-40's ported bu a professional airflow technition.



Smaller valves, higher velocity, and flow numbers that equal the bigger port/valved head. Finally, the heads go on the flow bench to ensure that the front and rear-head flow numbers are correct and balanced for maximum power and ease of tuning. The dotted lines are the stock port flow figures, and, as shown here, are the average of the good and bad port flow numbers. I did not do any valve or seat grinding all I did was a bowl port and thin the guides and lap the factory valves. stock or ported P heads, im guessing it wouldnt really be worth the trouble and money over my ported stockers, unless the P's can be ported and really outflow ported E7 heads, thanks guys. 6RRs, Crane Powermax 2020 cam, ported Explorer lower, FMS Explorer (GT40p) headers, aftermarket T5 'Z-Spec', 8. If you have the stock short block you will have 9. Also any ported head including the 806's is still better then stock. in Head Hoggers tagged harley engine kits / harley head porting / harley milwalkiee 8 head porting / Harley Performance / Head Hoggers Here is what our stage 2 port is for the Milwaukee 8 4 valve heads. Nobody has numbers to back up their claims. Knowing how the customer will ride the bike. Unported or mildly ported Canfields also make excellent street heads when used with mannerly combinations in the 500 to 550 H/P range. , but when the flow numbers deliver 308 cfm at 0. Re: Ported Kaase Boss Hemi heads - flow test dfree383 on August 10th 2009, 6:11 am Just because the flow flattens out doesn't mean thats where you stop with the cam Lift. To EFI or not Bronco Chat.



I really need those flow numbers for a more accurate desktop dyno estimate , Anyone?. But still, the evidence definitely indicates that factory castings with 2. The CNC porting services are available through Katech's online store or by calling Katech at 866-KATECH1. Contact: www. In Canada, pocket pager answering services are exempted from all local number portability requirements. Flow data based on Cylinder #1 intake and exhaust port. These fully CNC ported 215cc heads are specifically designed for $2,395. For about $600, you can get a good set of Edelbrock RPM heads. "What do they flow" and you're ok hearing one peak number. We show you how to upgrade your Ford GT40P heads with help from Comp Cams, Lunati, Trick Flow Specialties and more. Installing a performance exhaust system should be the first step to improve flow, but if you want to go further, mount a set of headers in place of your exhaust manifolds. 500″ valve lift area to make power with relatively low-lift truck camshafts, whereas the old school Gen I heads liked higher-lift camshafts to make their power. Here are the results. 90% of us aren't gonna get extremely technical. Here is a quick look at what ported GT-40 intake looks like compared to non-ported GT-40.



Pro Filer Sniper Big Block Chevy Heads with 320cc Intake Runner, 2. 5-Axis CNC Porting, CNC Combustion Chambers, New Bronze Guides, Diamond-Honed Guides to Spec, SERDI Competition Valve Job Port Designed Around +1mm Valves. 550 spring lift. The ported stock equipment has problems because intake increases good to. The following information is provided just to help give a basic understanding to consumers and enthusiasts, plus hopefully stimulate future studies. Knowing how the customer will ride the bike. this head is complete with new 1. ported gt40p heads. Port work was done by TMOSS Porting, I was able to get the intake from Ruffino Mustang parts. Flow measured at 28" of depression. 0 Fox Body Mustangs. Yeah, eight steps. Im running ported gt40p heads, ported gt40 intake, stock bottom end 302, longtubes, c4 trans,410s,3200 stall. The price listed is for you sending your cathedral port cylinder heads (4. Here are the results. The heads flow good up to. As standard, CNC ported 3V heads comes with a 60cc combustion chamber volume, but are also available with a 45cc chamber which marginally increases flow numbers even further. anybody here ever see a set of mopar performance 302 swirl port heads. Hello again everybody, anyone know a lot about porting. 750-inch deck from their clean-sheet casting design.



Didn't think I would gain that much over my other manifold but the timeslips don't lie" Chris from Goose Creek, South. That conversion makes some assumptions about the flow (and the underlying math) so it's not an ideal method unless you are comparing flow far away from the flow limits of the port. 99 per pair. just wanted to get some info from everyone else and more expierenced people what would be a better head. TYPICAL FLOW NUMBERS FOR FULLY PORTED HEADS Flow numbers will vary slightly from one casting to another of the same model. The CNC porting services are available through Katech's online store or by calling Katech at 866-KATECH1. com Using the flow numbers from the recent MMFF articles on heads I surpassed the "Y" head numbers by 35-50% at all lifts up to. These cylinder heads are fully CNC ported for maximum horsepower and torque, making them ideal for high-performance street and light duty racing applications. The flow numbers for Modern Cylinder Head were from a number of different sources, their Web Site updated Nov. Thats if you dont screw them up in the process. An expert can get around 10-12% additional flow from GT40p heads. Barnesville, GA 30204. the gt40p's are almost identicle to the gt40 heads from FRPP, one being alum one being iron obviously so the flow is the same i think the flow is someitnhg like this: INT 196cfm @. hole size 302 is 7/16 and 351 is 1/2. I could get higher peak numbers if I wanted to work more on the intake runners but that wasn't where I wanted to improve when I started the work. Hi guys heres a little more ellaboration on my heads. The numbers are there and have been proven as an AFR 165cc head flows slightly better with a 1. the Intake side will be clean up with a 80 grit sanding roll. A set of race-ported 351W C5AE heads will net you a whopping 215 cfm. This is the first D port head on the market to incorporate the latest developments in cylinder head technology into it.



If you use this intake with heads that flow more than 210cfm, then you will benefit from porting the lower intake. I have the slider plate to flow SBC, SBF, LS, BBC, 440 Mopar, and Ford Mod heads. Find Trick Flow® Valve Spring Upgrade Kits TFS-2500100 and get Free Shipping on Orders Over $99 at Summit Racing! These kits include everything that you need to install a high performance cam. Flow measured at 28" of depression. They are top quality heads and one of the reasons they run a little more than a wedge head. Typically heads in this category will have some combustion chamber work also to improve flow. This is commonly termed as the numbers assigned to the "Recipient" switches. Blue Thunder has long been known as a leading manufacturer of high performance cylinder heads for 460 Ford high performance and racing engines. Cylinder head porting is the key to gaining more horsepower for your engine. 2L engines, this port shape is also used on LS3 engines and some 6. Thats if you dont screw them up in the process. I was thinking, if i dont get my low lift numbers high enough then im going to sell these heads to a close friend and i will port my other gtp's to try achieve high low lift numbers. The solid line represents airflow from a basic do-it-at-home porting job. I would guess that the small differences in the low-lift flow could be accounted for in small testing changes between the two environment and flow benches. Therefore flow gains on the intake side are minimal, Edelbrock data shows only 5 cfm gain at. The turbo is probably of equal importance, as is the exhaust system and the air filter assembly. -----83 mustang, carbed 302, ported gt40s, 1.



so roughly 400hp, give or take 20-30. Stock Ford GT40P * Flow data for this head from an external source. The average flow numbers taken at. For about $600, you can get a good set of Edelbrock RPM heads. Factory valve job, same valve used for all tests. So the heads flow 250 but a ported Vr Jr only flows a bit over 200. A useful tool for calculating the power potential of cylinder heads is the following formula HP=. I want to increase my gt40p heads combustion chamber from 58 to 74-80cc if possible. The flow numbers are exceptionally high for the runner sizes, which make these heads so versatile. LS6 heads are the best choice only when all-out power is needed. 0 headers by a bunch. Less weight, probably the same power. The factory LS1 heads flow as much or more than most aftermarket Ford heads. Stock flow on cylinder #5. The exhaust port is a unique D-shape that improves flow.



00 vat inclusive for each additional cable box. FLOW Jamaica Stores Listed for Easy Location Finding a FLOW Store in Jamaica is super hard. Going With The Flow: A Look At Ported Versus Unported LS Heads By Bradley Iger March 29, 2017 One of the many virtues of the LS family of engines is the interchangeability of parts between them, allowing enthusiasts to mix and match components to tailor a build to their performance, durability and budgetary needs. But if you need the extra flow the 351W heads with some at home porting should work good. how big was that "maxed out porting job #461" intake runner? i've #291 1. Dear Valued Customer, Effective April 1st 2019, the rental fee of each additional cable box will be increased by $5. This port job includes performance valve job *All flow bench result are produced on a Saenz D680 flow bench using Brezenski bores and slider plates. 0L in the new daily ghia has lost all oil pressure, it has been going strong for about 12 months now but just yesterday morning it threw the warning light up and i shut it down after about 60 secs of running without pressure while trying to see if it was just a sticky sender unit. The reason for spread port heads is to achieve additional cooling in the center of the head. Here are the results. So, for the rest of Project E7 Part III, we will mostly be dissecting and copying a GT40P intake port. 02" Intake Valve and 1. ported GT40P flow numbers. Also, they will flow better. We now have a SAENZ model 680 flow bench which we all enjoy using. If you are looking for a little more power you could also go with the early 289 heads, I think around the same years (1969,70) they had smaller combustion chambers. Which ones to get? I already have a set of E7TE's that I'm in the process of porting and polishing and came across an article online that told me the GT40's and GT40p's flowed much more stock than the E7's I'm working on and now my work is at a standstill cuz I'm not too sure what path to take. Ford GT40P cylinder head GT40/GT40P Heads and Ford Explorer Typical peak flow numbers on a well done set of P heads is about 230 cfm on the GT40 Iron Head Flow Tech by Peter L - Ford Mustang … GT40 Iron Head Flow Tech by Peter L. Another thing you may or may not know about your 95 Mustang engine is it's performance numbers compared to 93 and down 5. Ported Gt40p Flow Numbers.