Gt40p intake runner size. AU2 200 had explorer intake 1.

Gt40p intake runner size The GT40P heads are not different then the run of of the mill 302 head. What's interesting is that the little 165cc intake runner was able to consume a whopping 633 cfm at its Sep 11, 2009 · Car is a 1986 mustang gt. Cam Duration Jan 24, 2001 · What size are the ports on the heads? The cobra intake has smaller ports than the trick flow, where the lower meets the intake port on the head. I was planning to build a 347 style SBF for asphalt circle track racing. 90 int / 160 exh or mine 2. The GT40p head has a 'closed' chamber with a volume of about 59cc's. 45cc exh. 7 rockers (i think), gt40P heads, and second most agressive camshaft out of the 5. Intake runner and valve are the same. 846-inch GT40 intake valve, which is the same intake valve as is used on the 351 Windsor. 4:1 to 9:1 if you only reduce a 69 cc chamber by 4 or 5 cc's, which is what you'd be doing in the 64-65 cc size range. 77 exhaust Jul 19, 2007 · funny I find this thread, my brother is selling his worked '70 windsor heads, I just have not got around to putting them up on the block. Thus the differences in intake flow shown. 54" exhaust valve whilst the GT40P cylinder heads have a slightly smaller one at 1. The ports are way smaller than any aftermarket head, and will have crazy velocity. but what size intake/exhaust valves. 00 Total $230. The runners flow 185cfm. Intake gasgets are close enough to the port in size that is not a big deal to do a port match. 500 lift. 84 intake 1. Apr 17, 2021 · When I put my GT40P in I was temporarily going to run stock exhaust manifolds until the winter when I had more time. The GT40p head has 1. if the heads you are getting are gt40"P", you will need new headers to make them work. Jan 19, 2020 · The l92 heads that came on escalades have about 260cc intake runner stock. I think stock cfm on the intake runner is around 1. 00 exhaust. 0s In 75, they went to the D5TE casting which maintained the same intake runner size, but used the conventional 1. The 200cc Dart runner has a very long port length. Get the intake manifold that matches the ports on your heads the closest, as long as it isnt bigger. thanks Matt Aug 2, 2010 · You want to get a 96/early 97 exploder intake because it will have the internal EGR passage, a boss on the #5 cylinder runner for the ACT sensor and a boss on the rear lower for the EGR coolant return. 5. 1997-2001 Ford Explorer 5. Feb 24, 2013 · Maybe you could try working over your E7's first. here is the prices he gave me to do my heads grind the valves and cut seats $60. The valve size on GT40's are 1. 400 to over . the TFS TW port ends up with cross-section very similar to a 185AFR head. GT40P's run from 59-61cc. Not the end all video, just showing what has worked for me. More information on this is below. Aug 20, 2005 · The stock sizes are 1. Mar 7, 2003 · GT40p heads peak horsepower was 310@5000 with 363ft/lbs@3500 The worked 351 heads showed peak power of 328@5000 and 380ft/lbs@3500 I used b303 cam numbers @. In a nutshell, the larger intake traded top-end horsepower for low and mid-range torque. 46" exhaust valves. To get more than that, you’re going to have to pay big bucks for the porter to replace the valves to a larger size, and really put some work in. How is it measured? For aftermarket heads, the easiest way to find the intake runner size is to look it up online. It aslo has a bigger intake runner 1. Aug 23, 2011 · The 5. 90 on a n/a 306" in a 3000# hatch. Expect to drop a half point in compression ratio, but you'll make up some flow due to the larger valves and improved exhaust runner. 00 adjust valve spring hieght $40. 75", but I know that's not 100% accurate. So whats the best to use that goes with gt40p's and is cheap. GT40P Head Data: Valve Size: 1. I tried to find the old data after reading this but can't find it yet. 94/1. 1962 falcon stock 1992 302 short block, RHS heads, 1. i dont know 100% they will work with your flattop pistons, but you can flycut if need be. If the Mountaineer intake you're looking at doesn't have a threaded hole on the driver side near the #5 intake runner(for the AIT/act sensor) and there isn't a hole in the center of the intake for egr flow, its a late 97 I converted my 1984 351 in my 2001 to GT40P heads, a performer intake, and a 207/217 cam. Jul 16, 2003 · 1979 Indy 500 Pace Car - Ported GT40P heads, Crane 1. 85/1. Dec 10, 2002 · 90 Mazda RX7 with 2000 5. The GT40P heads are good right out of the box so you don't need to do much to them. 4:1 CR. 050, a 650cfm carb/dual plane intake setup with small diameter longtube headers and mufflers. 7 rockers, GT40P heads, and the most agressive standard cam in the 5L range. Starting at 160ish flow to a holy moly 195+ cfm. 6. 76. Sep 15, 2010 · Ford Racing M-6049-X306 Cylinder Head, GT-40, Aluminum, Assembled, 64cc Chamber, 178cc Intake Runner, Ford, 289, 302, 351W, Each $ 500 ea Hello, This is a set of GT40 Heads They have been completely reconditioned by my local machine shop and are ready to go. If someone knows, please chime in. 8/3. 0L GT40P lower intake top view: Jan 11, 2012 · GT40's drastically outflow E7's. 0L HO Mustang intake: 150-160 CFM 5. Following Information Taken From CarCraft Magazine on GT40P Heads. the p head flows better because of revised bowl and runner on the p head flows better even with the smaller valve. 0L GT40 lower intake on the right: (Note that the difference between the bottom of the lower intakes) 1997-2001 Ford Ranger 5. 73 rear end, mega bite jr. 84" intake valves, but the GT40 has a 1. iirc, gt40s are 64-65cc chambers and the e7s usually run between 65-67+/-. Jun 2, 2020 · Standard headers and intakes will fit fine, no smog ports on rear of heads. 5 Apr 2, 2010 · Also, if you are looking to buy one, make sure it has the hole for the ACT sensor in the #5 intake runner. Also upgrade valve size from stock to a 1. What size is the stock, unported throttle opening, 65 or 70mm? The closest measurement I could get with a tape was around 2. lower control arms, R-17, AOD with 4R70W internals and a B&M shift kit Aug 27, 2007 · Combustion Chamber Size: 64cc Hardware: Varies Rocker Mount Type: Pedestal mount Runner Volumes: Est. Dec 1, 2022 · At low RPMs, a hot cam with a lot of overlap will let some exhaust into the intake, fouling the next charge in the intake runner. zandifman from what ive found anywhere from the 60s to the 80s; the intake runner volume hovers around 130cc. It tells you the size of the passage leading to the intake valve. etc. The ports on the GT40p heads are excellent low to mid range ports up to about . Excellent street heads. My upper and lower GT40 Intake including the matching GT40P heads came off a 1998 Ford Explorer 5. Match porting - justifiable? Jul 8, 2007 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - GT40p Heads for Carbed 302? - *Will the stock manifold(s) for ford carburation work with the GT40p heads?* I have recently acquired an '82 F100 with 302/5. 500 lift intake, peaking at about 195cfm. It is expressed in cubic centimeters (cc). 54 65cc Cumbstion Chambers GT-40P Valve Size Intake - 1. Plenum size looks to be the same or close to the 93 Cobra, but one significant difference in the castings can be seen above. The length, volume, and shape of the intake runners are significant when it comes to power output. net Porting a stock intake IMHO is a waste of time unless you really want the stock look. 8 GT40 headed motor will only use like 2000rpm worth of intake. Apr 18, 2010 · This isn't actually for a mustang, it's for a ski boat. Mar 20, 2020 · Thus, GT40P cylinder heads may give a small bump in compression. 0L HO Mustang intake. Mar 16, 2004 · With a stock, unported EFI lower intake manifold on the motor, Jim indicated 40hp was possible. Smoothen the short side radii and the bumps in the transition from port bowls to runners. 54" exhaust valve whilst the GT40P cylinder heads have a slightly smaller one, at 1 . I think the E5/E7 heads had 1. On the stock manifolds, I did grind around the plugs and the flange. 86 Bronco Fordstrokers 347 10. 96"x1. 0L HO intake: 200-210 CFM Jun 25, 2012 · 1987 - 1996 F150 & Larger F-Series Trucks - ? about 92 351w heads - Does any one know what size the combustion chambers and intake runners are on a 1992 351W/ trying to map out future upgrades and looking at different aftermarket heads. I need advice from you 351W guru's on what intake will be best for Jan 20, 2011 · Wise man. These heads even ported won't flow well to 6,500RPM, so why add an intake that's rated for that kind of power band. The intake valve diameter will always be larger than the exhaust valve diameter. 8 Engine Tech. Jul 7, 2006 · The GT40p's actually have the same size intake and a smaller exhaust valve than the standard GT40's, and the P's outflow them all across the board. GT40 vs GT40P, which are better? May 30, 2000 · The GT40 family of intakes have the part number that ends in "-BA" or "-AA". They also have a lot more vacuum taps into the TB runner. Jun 3, 2010 · As far as a cam advertizing say . We all realize the stock intake manifold restricts stock, unported heads. 45 GT-40 Valve Size Intake - 1. Jan 13, 2022 · It is a dual plane intake. Replacing or porting it will really make a difference. 0L lower intake compared to a GT40 Ford Explorer lower intake: 1997-2001 Ford Explorer 5. They also have new valve springs and locks installed and are good for 500 lift. As for opening up the ports, you want lose any bottomend. 0. 0 Explorer with ported GT40P heads milled . 46 Aug 24, 2021 · The GT40P heads have the same intake valve as the other GT40 cylinder heads, but the smaller 1. is that its useable RPM range is something like 3500-8000 rpm. Trim the valve guide bosses (you've done a nice job on that one). 78, Intake Ports Flow @ 124cc 87-95 Stock E7TE Valve Size Exhaust - 1. Aug 18, 2004 · I've seen a gentleman port the hell out of a set of 1970 eras 302 set of heads. The BA is . Mar 18, 2002 · These are somewhat 'open chambered' heads. 00" intake valves and still had over . In regards to the GT40P heads - you beat me to it. 7 Roller rockers, B303 Cam, Recurved stock distrib. It creates that typical 'lopey' idle, and murders vacuum and economy, but gives more power high in the RPM band, allowing the cylinder to fill more completely using the ramming effect and suction created by exhaust. The exhaust port should be the same size as its primary tube. So, Ford made a cast version that rivaled the tubular intake's performance but wasn't as visually appealing. Your 5. AU3 220 had explorer intake, 1. The ported 'p' heads are for sale if you know anyone in need. the GT-40 (1. These are DOOE 351 castings, we had a local port the heads some years back, flow sheet is long gone but these heads went a 10. Gt40p have 60cc chamber but the spark plug pointing almost at 90 degree out witch cause problem to fit headers. My plan was to swap engines in one day. Why The Size Of An Intake Manifold Runner Matters. They use the bigger 351 intake valves, and the stock E7 exhaust valves. 6 roller rockers,AFM N-41 cam,AED HO Holley 650DP and Purestreet ported and extrude honed Weiand stealth intake c4(need c4 part's) tranny and 4. 5% 10 38. If the trick flow lower has bigger openings than the openigs on the gt40 heads, this would be a poor One of the standout features of these cylinder heads is their 220cc intake runner size and 64cc combustion chamber size. Windsor Tech Forums. The '85's had 69 cc chambers and an 8. 54 exhaust. May 30, 2000 · The GT40 family of intakes have the part number that ends in "-BA" or "-AA". 94x1. Mar 22, 2003 · Ok, so i'm wondering if GT40 iron heads with 58cc chambers would be a decent swap. 3. 6 Roller rockers, TFS Stage 1 cam, MSD 6A, Holley 650 4150 carb, Edelbrock Performer RPM intake, FRPP Shorty "P" headers, Dr Gas X-pipe, Flowmasters, 8. 450" lift. 582" lift with D. 050", . 0 HO Intake, a 5. 500 lift) 310 lbs @ 1. 135cc int. I would hate to cut into such a rare intake to port Oct 28, 2012 · I am not sure about the runner length in the GT40 or GT40P, but I do note that they have a more restrictive runner area at 1. 75 intake/ 0. Aug 27, 2012 · Mustang5L5, Thanks so much for the update on the vacuum line sequence. 46") vs. Apr 11, 2015 · Mountaineers and Explorers have the same intake. AU2 200 had explorer intake 1. 02 valve to accommodate it (the 165 uses a 1. 00" x 1. 0 to CJ7 - Noobie been lurking in the background for the last year preparing to swap a MAF 5. 60 valves with the stock seats. Aug 22, 2003 · He also stated that he would not clean up or polish the intake side at all do to felt like a good texter and they were already the size of the intake gaskets. A home ported set will get you about 165-170cfm, while a pro ported set is in the neighborhood of 190-200cfm. S. What this means is that the truck intake is better than a 5. In 75, they went to the D5TE casting which maintained the same intake runner size, but used the conventional 1. This combination allows for improved airflow and increased horsepower potential. 4. 0L that was equipped with a set of really decent GT40P style iron heads. 0 This upper and lower intake is the non-EGR intake, although my original 5. Surprisingly, the "P" exhaust port flows slightly BETTER than the GT-40. Also, while the intake valve is the same size on both, the "P" exhaust valve is smaller (1. 500 Valve Spring (coil-bind) 1. ) But they usually assume the standard rocker size of 1. 46 exhaust. There are more pressure (vacuum) events in runners than many people are aware of. 54"). Engine Displacement (cubic inches only) cubic inches Number of Cylinders Peak Torque RPM RPM # of Induction Wave (sound waves) Adv. What do you mean by your statement there was never a cast intake for the Boss 302? THE COBRA INTAKE. If you're not satisfied you can do the switch to the GT-40's. once again you cant look port volumes as a comparison. the gt40 and gt40P would be good upgrades over stock heads. 78" intake 1. 46" exhaust. Jan 1, 2004 · I ran the 1. 150 piston to valve clearance on the intake, and over . Aug 21, 2002 · Intake:Ford GT40P Intake Port Exhaust:Porting GT40P Exhaust Port This is the part I focused on when doing my heads. 8/351W) - Help with intake and swap options - 5. Jun 27, 2010 · "Following Information Taken From CarCraft Magazine on GT40P Heads. I don't know the intake and exhaust valve size on the 95 EFI 302 truck heads, but the GT40P irons have 1. I also opened up the outlets of the manifolds. 510 lift, that means they have already done the math for you (Lobe lift x rocker size. Oct 15, 2003 · 1979 Indy 500 Pace Car. 1 port came in at just under 200 cfm. It was pretty easy. 00 Valve Spring (@ . 90 intake). The intake is a pretty straight forward swap with the exception of having to drill and tap one sensor on the side for a fox body. 72" intake and 1. 04 intake and 1. The E7TE truck head valve size is 1. I want to try to get 400 hp to the Oct 10, 2007 · I personally think the RPM intake is overkill for the flow capabilities of the GT40 heads. . Oct 31, 2006 · So ive decided what im going to do. GT40 and GT40P share similar intake runner volumes at about 145cc compared to E7's 124cc. 030 over with flat top 10:1 compression. 0L truck intake: 186 CFM, or, 180-190 CFM Cobra/GT40 (Explorer) 5. I am also pretty sure the intake and exhause runners are larger to. Stock e7's are 1. 46". While it’s still running well the short block is coming up on 200k miles and I’m trying to figure out a plan for a rebuild. 00 May 16, 2024 · Because this is part of a much larger (and more complex) equation, it shouldn’t be assumed that a 10% increase in intake valve diameter results in a 10% increase of flow, but all other things being equal, a larger intake valve diameter certainly improves flow. 46. 0L truck intake flows more than the 5. 7 to 1, megasquirt ecu, Trickflow 205 11r, Holley Hi Ram intake, 95mm pmas maf, custom cam, 42lb injectors, walbro 255lph pump and future long travel TTB, T18, 9 inch rear, manual May 28, 2004 · the gt40p makes more power because of it high compression and better flowing exhaust bowl and runner port the gt40 and gt40p do have different exhaust bowls and ports. Stock 5. even though the gt40 head has a bigger exhaust valve. to find the right parts that work well with each other. The late 97-2001 is the GT40P intake. The thing with the Victor Jr. 00 Cut spring & bowl hog $40. Make sure you get a matching gasket too. the dart runner is about an inch longer than the TFS runner. 030 over with; Scat Forged Steel Rods, SpeedPro pistons and rings, stock crank, GT40P heads, Crane 1. The shape of the combustion chambers are pretty much the same on both heads, but the GT40P is smaller in size. 54" exhaust valves. These heads feature closed style 64cc combustion chambers and 190cc intake runners. 0020. Its not the best job in the world but I just tried to smooth everything out, I didnt hog anything out, I didnt gasket match, I didnt touch the intake port, and I barely touched the actual size exhaust port opening. 84, Intake Ports Flow @ 185cc GT-40P Valve Size Exhaust - 1. Jan 23, 2012 · This makes no sense to me. besides the GT40 and gt40p heads which range from 138cc to 145cc with an excpetion of some gt40 "race heads" that are 150cc. Im going to rip my 302 down when it blows and im gunna use the shortblock and use gt40p heads with a lower intake and custom upper intake to fit an eaton m112 supercharger. 0 Cobra/GT40/Explorer Intake or any other 5. I have been contemplating getting bigger valves for awhilebut at $200 for the valves (manley 1. head, intake and exh manifold. Jul 12, 2011 · yes the stock e7 heads suck. 10 rearend Oh and a Mallory Comp 9000 unilite distributer and Mallory HYFIRE DIGITAL 6 ignition and Mac 351 swap 1 3/4 long tubes Thats about it . 84, Intake Ports Flow @ 155cc GT-40 Valve Size Exhaust - 1. 0L 2bbl and auto trans. We would like to show you a description here but the site won’t allow us. These intakes are spin offs of the Cobra Intake. As far as the milling is concerned I don't think you'll need to as the GT-40's combustion chamber is about the same size as the E7TE but if you did it would depend on how the valvetrain geometry lines up. I just couldn't do it for the power it would give me. All accessory bolt locations and valve train geometry are the same as the standard GT-40. Dec 29, 2015 · However, it's pointless to upsize to a 70mm or larger TB unless you are going to get a spacer of matching size and also port the intake opening to match. Cuz im on a crazy slim budget. On my son's car, a previous owner had used a smaller gasket which negated any gains from the 70mm TB which was on it. 302 . , Holley 650 4150 carb, Edelbrock performer RPM intake, Longtube MAC h Mar 22, 2019 · Ford GT40P Cylinder Heads Work Great With a Few Mods. As far as the heads go. Victor Jr. Finally, the last difference between the two are valves. Nov 11, 2013 · As far as the explorer intakes go, there is no difference between a gt40p and a gt40 intake. Using it as weekend errand runner. 0L GT40P lower intake on the left, and a 1995-1997 Ford Explorer 5. The 87-93's had a nominal CR of 9:1, and you're not going to get all the way from 8. You can see on the GT40 one pictured there is a hole there, and on the truck one it has the sensor still screwed in, and on the stock one it doesn't have the provision for the sensor at all. 02 int / 160 exh. If you are looking for a factory head I would go with a 69-71 351 windsor head casting C9OE-B it has a 60cc combuston chamber with bigger factory valves 1. 70ish at most. Blend the port bowls with the valve throats. Dec 5, 2003 · Dark Mode; Light Mode; Menu Log in Jul 17, 2012 · Pretty much all 289 heads, except for the C3 HiPo heads, have 54. The 5. Nov 18, 2022 · The size of the intake manifold runners has a significant effect on the performance of an engine. If you want to know what lift you will get from a cam find lobe lift and multiply it by your rocker size. I have no numbers Oct 17, 2008 · The rules I must comply with state a cast iron, OEM cyl. 0 intake that Ford built. Also flows similar intake and exhaust cfm numbers to the standard GT-40 head. These parameters also determine where the rpm range where the Mar 29, 2003 · How smooth should the intake ports be? leave sanded Votes: 16 61. head with larger runners, what's your thoughts on runner size increase Jan 21, 2009 · 87-95 Stock E7TE Valve Size Intake - 1. Other than this, the Ford rules are very vague compared to chevy. 300 Retainer To Seat Contact 0. The P's also have a smaller combustion chamber, so you'll see a performance improvement from the bump in compression as well. 00 Mill heads $90. I also opened up each runner to a header gasket. 60 cc head would put you at about 9. Oct 17, 2014 · The only thing you’ll need to do to your intake is port the lower to match the port size of the cylinder heads if you are upgrading your heads. so you can see what an aftermarket head has. 10 gears,1 inch Calculate Optimum Runner Size and Length To find the optimum intake runner area and length for a particular rpm. On the left is our 1. Actual flow bench numbers (don't remember where I got them) I have written down in my notes from years ago: 5. The hydraulic flat assembled design ensures easy installation and proper valve alignment. Mar 6, 2007 · The 69W and the plain GT40 have identical intake runners and valve sizes, but the GT 40 was supplied with a 3 angle valve job, some say machine throated to resemble a mild 5 angle job. 030, Harland sharp 1. Oct 17, 2003 · The Explorer/Mountaineer heads (GT40P) are somewhat smaller, measured between 58-61cc chamber volume. 1 to 1. I'd personally stick with the standard Performer intake (or equivalent) and take advantage of the GT40's small, high velocity runners and Dec 10, 2007 · Similar runner volumes to the standard GT-40 head (around 145-155cc on the intake side, I think, compared to E7TE's 124cc). Jan 13, 2008 · I compiled this flow data info after I ported and flow benched my GT40p's. Based on today's fuel, I would think a swap to GT40P's would be a win/win if you're keeping it carbureted. The GT40 has egr and the GT40P doesn't. Oct 17, 2008 · The difference between the GT40 and GT40P is the exhaust valve size and exhaust runner on the "P" head. 102° intake centerline and 106° lobe separation. 3/8. 84 intake and 1. Many years ago, a friend bought a used 2001 Mercury Mountaineer 5. 7 crane pedestal rr,port matched the heads,weind stealth intake port matched,650 demon double pumper,tfs 1 cam, msd box,ford headers, bassani x pipe,flowmaster, cat back,aluminum driveshaft,aluminum flywheel,4. 2. Apr 28, 2009 · GT 1991 convertible,GT40p heads, explorer intake, 65 mm TB, 70 mm Maf, MSD 6A, K&N filter, FlowMaster 40 Series Delta flow, 130 amp 3G alt. Feb 17, 2005 · The port demensions are the same on both heads 1. E7TE’s flow up to about 155cfm intake side peak, at . While it’s still running Jan 3, 2017 · You can email him at: mosstpsa@sbcglobal. 46 exhaust Chamber Volume: 60 cc Intake Runner volume: 145 cc Valve Spring (seat) 90 lbs @ 2. Mar 29, 2003 · I did this on runners in a 355 Chevy Performer intake (one runner only) about 8 years ago and got some very interesting info from the test. In unported form these heads will support 500+ horsepower on pump gas. I have an Accufab 70mm TB, so Im hoping that's what size the intake already is. Jump to Latest chamber cc---intake runner cc---valve size--and flow number if you have them . 80" Sep 10, 2015 · yep Barnett that is my plan. 0/5. 94 int. 65" and the AA is ~1. 45" exhaust 50 State Smog Legal: Yes This is an actual cc'd head! Jun 14, 2005 · A TFS TW head has a 170cc port volume, but a very short port length. An explorer intake is the same wether it sits on top of p or regular gt40 heads. Performed compression test and #6 hole is Oct 22, 2006 · The intake swap had netted a 25 hp gain over the GT-40 baseline, but the added top-end power came with a price. Sep 30, 2010 · E7TE’s flow up to about 155cfm intake side peak, at . May 3, 2019 · FWIW, the GT-40 combustion chamber (non-Cobra) is a nominal 5cc larger than the "P" so they'll cost you half a point in static compression. Both have 1. Has a 1993 stock lower end from a junkyard,gt40p heads heavily ported by me,crane spring kit,1. 200" on the 1. 5cc chambers. 46 302 valve size, making a head that is a far better base for a "worked" head with larger valves because you have more workable metal in the valve bowl region and short side radii, AND you dont have to find Jun 24, 2012 · Okay so I sucked a valve and destroyed a piston,I now plan on rebuilding the motor . 80" Jun 1, 2008 · I just bought a used GT40 upper/ lower intake. Going over some explanation and specs when porting explorer heads. is a single plane intake. Thus, GT40P's may give a small bump in compression. The GT40P has a higher number of intake ports than the GT40, thus, it allows for the use of larger valves. Edelbrock performer rpm 170cc runners and valves are 1. On the other hand, the Performer RPM's operating range is 1500-6500, a much more useable intake for your combination. 55 Crower 15511/ Brembo Brakes/MM suspension "Old man once said, Big things come from small things" Intake runner volume is a popular way to compare cylinder heads. I have always viewed the intake port as an extension of the intake runner in the intake manafold. These are among the best of the iron Ford Windsor heads as they tend to flow much better than earlier castings. This was featured on the 93' Cobra and Cobra R Fox. 90/1. Are the mogul kits any good?and what all can I do to get maximum power out of my gt40p heads? I plan on triple springing with titanium valves. 480" block, stock '69 4V Windsor heads fitted with 2. On that same pic above, they will be top left. This intake came about because it is said that it took too long to produce the tubular intake and was too expensive. I replaced the GT40 heads with GT40p's, also dropped a cam (small lift/495), roller lifters, rockers and flat top pistons in it. I don't need huge runner volume since this isn't a high RPM engine. Jul 26, 2000 · Right now, I have a real GT40 intake with GT40P heads with a stock cam, BBK long tube headers, 70mm TB, and 75mm mass air meter. With a fully ported intake port you are looking at a 150-160cc runner, and thats pretty small for a 220+cfm head. 84" intake and 1. Dec 19, 2016 · 5. This is first time that I have heard that the intake ports of the GT40 were different. What about the Mountainer's intakes? Sep 4, 2008 · First, I do have the GT40P heads and I am using a old, custom manifold, I had no trouble fitting intake, it was built about the time of the 289. The AA lowers have a little more runner exit section - good tip for 100% stock classes if you don't want to cheat. 46 302 valve size, making a head that is a far better base for a "worked" head with larger valves because you have more workable metal in the valve bowl region and short side radii, AND you dont have to find those 18mm plugs that Jul 12, 2010 · gt40p specs. What people don't know is that the AFR 185 and the 165 share the same basic port size on the intake, but the 185 has a larger bowl under the 2. Apr 17, 2009 · Actually the D0OE was the casting that was used all the way up to '74. 84" intakes and 1. Nov 17, 2012 · 93 Hatch Tubular GT40/GT40p 1. The Explorer intake is a better solution as it sounds like this is a long time budget project and bolting them on with a 70mm throttle body and larger MAF could net you upwards of 15+hp plus still looks stock to a 5. 0L GT40 lower intake on the right: (Note that the difference between the bottom of the lower intakes) Nov 11, 2018 · I've put 258° dur @. 0/302, 5. May 24, 2002 · They almost the same Only different between the GT40 vs GT40-P is the spark plug angle, they change the P head plug angle for better combustion, I do believe they almost flow the same, But the key is when using P head on Mustang you need a set of P head header, the stock header or any after market headaer will not work, the header is need to be for use with GT40-P head only ( spark plug Dec 26, 2011 · Small Block V8 (221, 260, 289, 5. 0 explorer intake was the same from 96-01. 78 intake and 1. 0 from a 1994 F150 auto. 5% Nov 26, 2004 · 62/63 cc's as a nominal size, although there were variances. 8” and 1. This will save you a ton of money. Mar 5, 2011 · Your current head have a 63 cc chamber and give you 8. forged flat tops in a 9. 0 explorer throttle body is 65mm and will fit a Mustang but you must swap out the throttle shaft and arm from the Mustang throttle body. , taurus electrical fan with derale fan controller, MSD wires, 3. Valve Sizes: 1. -ft. 55s, FMS springs, Megabite control arms. Sep 30, 2010 · A set of brand new, stock GT40P’s will flow 190cfm from . What years Mercury Mountainers have GT40 heads? I am looking for the GT40s for a 1990 GT with PTK turbo kit (so the GT40p heads are not desirable due to chamber size and spark plug placement). For stock displacement, this may not be that much of an issue. Sep 29, 2017 · Picked up low end, mid and top end in a very mild engine (basically a stock cam, stock compression and a ported stock efi intake). Jul 4, 2004 · My current understanding is that the 96 and some 97 Explorers had GT40 heads and the 97-01 Explorers had GT40p heads. 6), and at least $100 to get the seat cut to fit the larger valve. I'd just do the following: 1. The TFS R intake was down on torque compared to the GT-40 to the tune of 25 lbs. Heads have also been shaved 0. 77 exhaust Following Information Taken From CarCraft Magazine on GT40P Heads. 24x1. 78/1. 77 exhaust Nov 5, 2023 · Right now, I have a real GT40 intake with GT40P heads with a stock cam, BBK long tube headers, 70mm TB, and 75mm mass air meter. 46-inch exhaust valve found on the standard E7 heads, but makes up for it with a little more compression, thanks to the smaller 59cc chamber. 7 to 1 comp ratio. No one ever complains about lowend on the factory ls engines. 0 HO set-up does have the EGR. This leads to increased compression because there is less room for a charge to fill. 64” respectively. 5% polish to glass like finnish Votes: 10 38. The Cobra TB runner was straight, top to bottom, into the plenum but the Explorer TB runner has a “V” shape that widens the runner into the plenum. Dec 16, 2014 · EL2 motor had an explorer intake and E7 heads with the same cam all E series V8s run. The 96-early 97 is the Cobra style GT40 intake. May 9, 2005 · Peak horsepower was 384 at 5,400 rpm, showing a definite restriction in intake runner size. That's a serious improvement over stock, and well matched to mild head/cam/intake combinations. If you are going to spend money on a set of head go with some aluminum head 170cc to 190 cc intake runner. dqfhs sljq ycwz wfgldda emypmauc rbmo dpydg gmhllk zihc ygoo pzjz yqsxam saoj eanqn anbc