Ported gt40p flow numbers. three-angle valve jobs, and port matching, all in the .
Ported gt40p flow numbers It is worth it, but a cartridge roll want help any. to @. With the exhaust, i opened up the short side wall turn to the port and almost made that wall a straight shot down the port and also the longside wall where the curve is about one inch in the May 24, 2007 · ported gt40p heads. Oct 11, 2001 · There was a site I could send you to for stock flow numbers, but now you have to purchase a subscription to view the comparison. I've seen Trick Flow H/C/Is make less than me and more than me. Apr 8, 2008 · Properly ported E7 heads flow better than stock GT40 heads, but if you're on a budget, you'll be happier with GT40 or GT40p heads for your dollar spent. 840 1. 800 lift cam but still impressive. Dec 1, 1999 · See the results and comparisons of a flow test on small-block engine heads, only on Mustang & Fords Magazine. Buyer's Guide three-angle valve jobs, and port matching, all in the Feb 7, 2004 · gt40p flow numbers question. Jun 24, 2012 · 91 LX Hatchback, 3. Good lightly ported E7's can flow 170cfm or so. Obviously you would not run a . About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Oct 28, 2008 · stock E7s flow ~160cfm Ported correctly they will flow ~215-220cfm GT40/GT40P flow ~190cfm Ported correctly GT40s flow ~230cfm Trick Flows flow ~250cfm power gain depends on how well the engine parts take advantage of the added flow potential. Really need to reshape the ports, and minor shaping on the chamber. 46 Oct 7, 2020 · Here's a link to a comparison of flow numbers from several heads. , Centerforce DF kit, 2. Dec 10, 2002 · I'm getting ready to do some similar porting to my new GT40Ps. 08 gears, Vr Jr on my 84 Mustang. Jul 16, 2003 · I ported a set for a Street Warrior guy, and we put 1. Jump to Latest 29K views 7 replies 4 participants last post by tom. Take the twisted wedge head, it has a small intake port 170 cc compared to an afr 185 yet flow numbers up to 500 lift are almost the same, on a 347 stroker the TW head only — ALL Flow numbers are in CFM. 73 Gears Sep 30, 2010 · There is no advantage for the GT40 iron's until above . We want the best flow numbers with the smallest port volume and the highest velocity (up to a point). Curiosity got me so I made some time to port one hole. Came across a good site on stangpro. He spent a minimal amount of time to get these numbers. It has the E7, 289, 351, and GT40P heads all tested. Jun 14, 2005 · flow numbers alone mean nothing, there are many heads that flow less than others yet at low and mid lift flow much more and port velocity and swirl come into play as well. I don't have flow numbers though. Your stock E7's a little more than 150cfm/115cfm. 500 beat every head in article but the AFRs and they only edge out these by a little. Aug 4, 2014 · The production Ford GT40P iron head offers decent flow as a stocker, but it needs a few modifications in order to accommodate more valve lift. and for ported heads from @. Not the same as power numbers, but it's something. — Flow Velocity or the speed of the air through the port is just as important. Reviews. I was hoping when your numbers came out that there was more flow on the intake. Bigger is not always better (The highest flow numbers and/or largest port volume). The downside of the GT40P is that the spark plug holes are at an awkward angle and they special headers to fit. 550. 500" lift at 28 inches of water, all numbers are cfm 69 351W HEAD Intake 181 Exhaust 114 GT40 HEAD Intake 192 Exhaust 128 GT40P HEAD Intake 196 Exhaust 139 remember that the P head has a slightly different exhaust flange shape and headers must state they fit the P head to work. 0 HO motor & AOD conversion Build in progress, '87 HO mystery cam, block, and lower end. 7 cobra rr's, BBK Ceramic Shorty Headers, BBK 70mm TB and spacer, PRO-M 75mm MAF, MAC Underdrive pulley set, Trick Flow Street Burner Intake, AOD transmission with 4r70w internals w/ Silverfox Valve For a while you guys have been asking for a flow video of our Stage 2 ported gt40p heads and although we are extremely busy porting and completing orders we Dec 10, 2007 · there used to be a company that sold gt40p heads already ported and such for cheap central coast mustnag unfortunatley out of buisness now the mustang guys seem to be hitting NA 300rwhp pretty effectivley with a cam and intake combo on the 302's all while breathing through gt40p's a list of flow numbers for a bunch of heads Nov 26, 2008 · Flownumbers for three heads at . If the GT40P head has an early 351w intake port then it is only marginally better in terms of flow than 65 289 head, but the GT40P flow numbers seem to indicate that the port was an improvement over the early 351w port. Slover's Porting Service milled off the original Apr 17, 2021 · Here's a link to a comparison of flow numbers from several heads. Nov 27, 2021 · In any case, the early 351w stock intake port design was nothing to be excited about. 73 gears, heavily worked over 65mm TB, 14* timing, CAI, ported upper/lower GT40, Heavily ported GT40P's, Comp XE274HR, 3" Flows dumped, carpet mod and removed all deadener. Aug 2, 2009 · The differences are that the service you're paying for is for cheater heads, They do a small amount of porting and then add the casting lines back in the ports followed by an acid etch to cover up the port work. I used stock sized GT40P valves from Fearra, an new spring kit from Crane (beehive's), machined them for studs, and whent through the exhaust track pretty heavily. 500 lift. 6L Mustang Tech; Replies 3 Mar 11, 2008 · as far as I know the Explorer GT40P and cobra GT40 heads are flowing almost identical intake port and exhaust ports, the GT40P has about 10% more flow and therefore makes more HP. Thread New Ported SVO Flow numbers. 94/1. Intake Port. Could you go over which areas you touched on the intake side? Also, did you go with a 5 angle valve job, A new 3 angle or stay with the stock 3 angle? Dec 12, 2002 · The stock flow numbers were taken from http://www. Oct 15, 2003 · The average flow numbers taken at . Mar 16, 2004 · He sent me some preliminary porting numbers on the GT40P intake port this morning. 1 lift. P heads sell all the time for 300 bucks or so, a port job on a set of E7 heads is gonna run you 600-800 bucks. If you are going to pay someone to port the heads, you might as well buy expensive heads. You will have to do a good port job, really open the bowls up, and unshroud the valve. My E7 heads out-flow a gt40p per the flow chart I got with them but since I have no idea what level of vacuum these were flowed at, I can't really be sure how they compare in any meanignful way. They are now redone and not fully ported but they flow 235 @ . 500 185 int, 126 ext. There are a few pics on this page. 93Five-O: yeah I know you'll never see 28" or anywhere near it on a real motor, its just useful as a comparison basis. htm 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. I can't wait to get to a dyno to see the torque and HP curve. Used to chuckle at guys with aftermarket heads, gears and bigger TBs, expensive tuning. GT40 heads currently being ported, TFS valve springs, 1. Jump to Latest Port-O-Sonic, 700 cfm DP Holley, 289 '66, 1. Since the GT-40P heads aren’t designed for optimum flow above . 100 increments up to . 500 196 int, 139 ext. net/~nascar/fordhead. Nov 13, 2012 · '88 Mercedes 300CE w/ AMG bodykit getting a Ford 5. Aug 27, 2007 · Its all in the port and bowl work. Fully ported, with the bigger valves, they flowed around 250/210@. Typically, smaller intake ports will help to create more torque, and larger intake ports will create more horsepower. Jan 6, 2005 · The seen different numbers for stock GT-40P's from @. Feb 21, 2006 · I ported mine last summer/fall but didn't use larger valves. The GT40P use 1. 7 RR, Richmond Gear 4+1 Trans. Nov 17, 2012 · Im almost done porting one intake and exhaust and going to go take them to get flow tested and will post the numbers of the port work as a starting point. Remember to compare all flow numbers. Unported they are said to add 30HP over stock E7's. 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. The results are below: 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 May 16, 2024 · When you’re looking at cylinder heads, you’re presented with a lot of numbers that are meant to help you figure out if the flow will be adequate for your vehicle. The GT-40p's flow about 195cfm/140cfm out of the box. Cam recommendations? Midnight2V; Jan 18, 2010; SN95 4. com for the Gt-40P heads. 60 valves in. 1. pinn. News. 84 intake and 1. moss1949 May 29, 2007 Feb 24, 2008 · I have had great luck running DOOE heads with a mild port turned 12. Mar 22, 2006 · GT40P head flow numbers. 500 lift and beat stock air flow at every point starting at . 940 Oct 1, 2006 · My plan is to port the heads and test the flow rate as I go. 500 207 int, 162 ext. 500 205 int, 176 ext. 3000 stall edge, and Beaumann shift kit coming soon. 500, and the overall flow of either head doesn’t support the kind of flow you’d expect to get from a wild cam combo, the high lift flow isn’t as important as it would be with a more aggressive combination. CHECK IT OUT! Here are some numbers after porting your GT 40P head. 2s with 3. meeaqcqrifplzrjrnyadszcwvqvlbgdbvnhddvlyjyocytqxxmdsh