Gt40 cylinder head porting bookshelves

Ford hired roush industries to help out and rework the thencurrent 5. To identify your gt40 gt40 heads, look for a gt or gt40p stamp. Should have probably took those hours and stayed at work and bought some afrs lol. Ford gt40 head gasket best head gasket parts for ford. When it comes to your ford gt40, you want parts and products from only trusted brands. On july 21, 20 jeff lost his battle with adenoid cystic carcinoma. Buy ford racing m6049x307 58cc aluminum turboswirl cylinder head. We compare the gt40s to modern cylinder heads as well as other heads from the era. Even mild porting like this can yield fair results. Porting heads involve using a rotary tool dremel and a burr to restructure the passageways to optimize air flow through the cylinder head. Gt40gt40p heads were a more free flowing cylinder head that outperformed the factory e7 heads that were found on most 5. The ports were small and restrictive, even for a stock engine.

What all vehicles did gt40 heads come on maverickcomet. Port work was done by tmoss porting, i was able to get the intake from ruffino mustang parts. The guys out there getting 270 out of gt40s are obviously on a different level than myself and others 90%. Gt40 heads are a factory small block ford head found on a certain vehicles.

Gt40p header installation installing gt40p specific ford. For 19661968 ford gt40 cylinder head bolt washer set 85343qh 1967 4. Find great deals on ebay for gt40 heads and gt40 heads 3 bar. Edelbrock 60059 performer series rpm cylinder head fits. How much can you really gain with a home ported head. Johnny hunkins photographer david vizard photographer.

Its tough to hurt a factory cast iron head by porting, unless you get greedy. Do the gt40 and gt40p heads have a typical milling point to go to or stop at. Free shipping on many items browse your favorite brands. To make these heads work with a performance cam, slovers porting service milled off the original net lash bolt pads to install 38inch screwin studs with a 716inch bolt size in the head and. Porting gt40p heads pics inside maverickcomet forums. Late model restoration offers a wide selection of aluminum and cast iron cylinder heads for 4. These heads have been remanufactured using refaced reclaimed factory valves. The support from the racing community, family, friends, customers and vendors is appreciated during the last few years. This is my first attempt to modify any cylinder heads. I need to round it off as it turns down to the exh bowl. I would really love to have the port volumes, chamber volume and valve sizes.

Ford gt40p heads gt 40 p mustang explorer 40p cylinder heads. Youll find the older heads each have 4 small holes on the head surface that the gt40s lack. To accomplish this i felt that i had to open up the exhaust port and do decent bowl work on both the intake and exhaust. Just mocked up a set of shorties flipped on my gt40ps an they clear fine, supossedly there the best gt40 head out there, last revisions made before they discontinued the 5. Bpe racing head service and competition heads did the work. We strive for full customer satisfaction and as a result put our full attention to detail in all our work. Some ported gt40 cast heads and i amwas going to use a holley. Porting for late model twin cam heads up to year 2004 castings. Fords gt40 cylinder heads fox body mustang mods cj. Some will try to copy but there is a science to porting and this is why many cant get the results that we can. Port work 300500 depending on where and how much porting.

Porting these e7 heads, even an a job, may yield a 30hp gain. Sight the port and get things as straight as you can focusing on the centerline of the cylinder get a. Roots cylinder heads porting and flow testing gt40 heads. Like other stock castings, there is plenty of room for improvement with this head. Modern cylinder head has a very efficient setup and process to ensure that all our products are completed with the highest quality in a very respectable time frame. They are popular because while they are relatively inexpensive they also offer a measurable increase in power to your engine. Cylinder head porting head porting basics get more power out of your cylinder heads by following five easy rules. When undercover ported, the gt40 head will flow 202 to 210 cfm intake and 145 on the exhaust side. New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in ontario.

The cleanest sleeperlooking 92 fox had a cobra intake, comp shelf. First, remove the valve cover from the top of the cylinder head using a 38drive ratchet and the appropriate socket. Initially, my work was very conservative since i had read that its easy to mess up the p heads and actually lose cfms throughout the entire lift range. It was a success because the modified ho head castings actually flowed better than the 68 gt40 race heads. The gt40 and gt40p cylinder heads are highly sought after, but how do they stack up against other cylinder heads, and is it worth it to upgrade the fox bodys stock heads. When undercover ported, the gt 40 head will flow 202 to 210 cfm intake and 145 on the exhaust side. Bob, jeffs brother, is now running modern cylinder head. A gt40 head will have 3 vertical bars on the front of. These headers are specifically designed to work with gt40p specific heads. The stock singleport 9495 cylinder heads flow 175 cfm on. Cylinder head washing process step 14 cylinder head assembly at the time of assembly, promar installs new oil and water plugs in all its cylinder heads, using brass plugs in our marine applications.

We are installing the correct headers for the gt40p heads. Apr 09, 2017 the original gt40 race heads also flowed 195cfm on the intake side and 152cfm on the exhaust side at. Make sure the pushrods are installed in original mounting locations. Fox lake power products has expanded its menu of cncported 5. The flow at low, mid and high lift has to be balanced a certain way to achieve the most effective power curve. Gt 40 aluminum cylinder head instruction sheet no part of this document may be reproduced without prior agreement and written permission of ford racing performance parts figure 1 torque sequence step 5. Between 1993 and 1995, mustang cobras came equipped with a type of cylinder head called a gt40. There is no need to get special spark plug boots when installing these headers. The casting number, if located on top, is in the center of the gt40 head.

Fox lake racing power products and cylinder head porting, with advanced specialties in porting ford performance, racing, and trickflow heads. Select your year, make, model and engine to find those that fit your vehicle. We sent our project rh9 gtrs cylinder head to naprec in japan to undergo the process. Would i be gaining much going to a gt40p head, from like a explorer, verses my stock 85 cylinder heads, or would it not be worth it. No one will put their names next to anything to fit an eb with gt40 heads, the closest i have come to finding ones that fit without a hammer, are au pacemakers, but the swaybar has to have spacers put under it to lower it and there is something that has to be cut off the firewall on the passenger side, i am told the efl are in the same boat. I already have a set of e7tes that im in the process of porting and polishing and came across an article online that told me the gt40s and gt40ps flowed much more stock than the e7s im working on and now my work is at a standstill cuz im not too sure what path to take.

Cylinder head porting services brzezinski racing products. This intake has been welded in the corners to allow further porting. Just a little clip of how aggressive our port workis on a factory gt40 manifold. Also note that theres room to port the head port slightly larger, but not much.

I used the frpp y heads for my personal comparison. The springs are checked for proper pressure as well as the installed heights checked and new viton seals installed. What is cylinder head porting, and how does it increase. These gt40x heads feature a 64cc combustion chamber to greatly improve the airflow over the original gt 40 design allowing you to bolt on 65 more horsepower. Cylinder head porting head games modified magazine. Gt40 gt40p heads were a more free flowing cylinder head that outperformed the factory e7 heads that were found on most 5. Ported gt40 side by side with nonported gt40 youtube. An old hot rod buddy was looking for springs for his 5. Check out free battery charging and engine diagnostic testing while you are in store. I have seen a pair once, but it was quite a long time ago and i was not able to obtain the info. Started in the late 80s the gt40 heads were the result of not only the ford engine group, but also involved the marine group, advanced engineering group and svo. If you do not have good cores to send in for porting, we typically will have some on the shelf. How to identify gt40 cast iron heads it still runs.

I figured i would post some pictures along with some details later about my porting experience. Yeah if you are going to spend 700 on explorer gt40s, buy a good quality used aluminum head. Special thanks to the vintage mustang forum group on fb. Head to head flow testing small block ford cylinder heads. Engine is a bbc geniv with a bbc kinslerlucas mechanical injection.

Alex engineered his first drop in style spring kit for gt40 sb ford back in 2003. Ford casting numbers are part numbers cast on either the top of the cylinder head, or on the bottom, which requires removing the cylinder head. Im not sure how important it is, but i took some advice and drilled them. Our sst porting is for applications where porting the head is allowed and, because of the application, the cylinder head just doesnt need to be fully 100% ported. Even if you are planning to use a set of offtheshelf pistons, which provide. Ford gt40 cylinder heads brzezinski racing products.

They were most famous for their debut on the 1993 cobra. I am gonna say most guys porting gt40 heads are the grassroots type. Mustang heads are just one of the many things lmr offers. My goal was to create a set of heads that flowed well for cheap.

Head to head flow testing small block ford cylinder. Cylinder heads free delivery possible on eligible purchases. See the results and comparisons of a flow test on smallblock engine heads, only on. To identify your gt40gt40 heads, look for a gt or gt40p stamp. They are brand new bare castings that have never been installed or assembled. Gt40p heads, what kind of performance do they give.

Here is a quick look at what ported gt40 intake looks like compared to nonported gt40. What is cylinder head porting, and how does it increase horsepower. Because porting isnt something that anyone with a dremel can do, youll need to hire a professional to port and polish your cylinder heads, and. Max ported gt40 manifolds by bigdogs porting youtube. Install pushrods with multipurpose grease on both ends. That might have been the end of the discussion if the cobra were the only vehicle that the gt40 head came equipped on but several other. Porting the stock ho intake to the limits of its casting tmoss porting. When undercover ported, the gt40 head will flow 202 to 210 cfm intake and 145 on.

To tell the difference, take a look at the castings on the heads themselves. Small block gt40 cylinder head specifications gt40s. These cylinder heads were a vast improvement over the e7te cylinder heads that came on most fox body mustangs. Ford gt40 exhaust valve engine ford gt40 head gasket. Dec 29, 2014 gt40 head porting if this is your first visit, be sure to check out the faq by clicking the link above.

Id like to rebuild my old 176k gt40p engine for reuse in place of my v6 truck engine. Find gt40 heads in canada visit kijiji classifieds to buy, sell, or trade almost anything. Fords gt40 cylinder heads fox body mustang mods cj pony parts. They are a direct fit, keep the gt40 rockers and everything. Ford racing m6049x307 58cc aluminum turboswirl cylinder head.

These gt40x heads feature a 64cc combustion chamber to greatly improve the airflow over the original gt40 design allowing you to bolt on 65 more horsepower. That inventory means we either have the exact brand part you need, or plenty of options to compare. Autozone carries hundreds of thousands of parts and accessories. Stock air flow on this head tops out at 190 cfm intake and 128 cfm exhaust. I found that the gt40 heads are somewhat lackluster in the power making department,even after pocket porting and intake work, but theyre okay. Jun 18, 2010 the most critical areas when porting a cylinder head are those which pass the most air at the highest speed and for the longest duration, the port is at or near the valve seat, optimizing airflow. However its going to take quite a bit of cutting and grinding to get the intake port as large as the head port is in stock form.

Valve guides have been resized for optimal valve stem life. Get your mustangs engine breathing more air with a set of mustang cylinder heads. Alpha performance r35 gtr cnc race ported cylinder heads. Your first stop should be advance auto parts with an inventory of 10 cylinder heads parts for your ford gt40. The gt40 p cylinder head is popular for classes that must run a stock ford production head. Discussion in technical started by jhodges, apr 17, 2008. Fordmuscle obtains and flowbench tests just about every small block ford cylinder head available.

They had target airflow numbers matching or exceeding the 1968 gt40 race head which had 1. Edelbrock fits ford fe performer rpm cylinder head assm. Apr 10, 2004 i am trying to find the specifications on the original gt 40 cylinder heads used on the 289s in the mid 60s. Here at advance auto parts, we work with only top reliable cylinder head gasket product and part brands so you can shop with complete confidence. Increase the horsepower and torque output of your push rod 5. Ford gt40p heads gt 40 p mustang explorer 40p cylinder heads gt40 p. New, used and oem automotive parts large inventory great prices. Pbf had all of the heads, unported and unmodified, on the shelf, so all we. For 19661968 ford gt40 cylinder head plug dorman 22937sq 1967 4.

Its a job for only the mostskilled of mechanics, but head porting can lead to some impressive power gains if performed properly. I believe it started in the midlate 80s with the tubular style intake manifold. This port is designed for baggers for everyday street ridingcruising, this port was not designed for drag racing. First built in japan probably by yamaha, the first years were hand. Even without porting the exhaust, they will flow much better than any iron heads you can buy, except for the gt40p which i use best thing is, pull your head off, put this one on. As our foxes get older and more collectable people are starting to look at what performance parts were available in the early days and this post talks about the gt40 family of intakes. Foxbody mustang gt40gt40p cylinder head upgrade part 2.

Unfollow ford gt40 cylinder heads to stop getting updates on your ebay feed. There are a lot of shops that offering porting, or cnc porting, or cylinder head machining. In addition to this responsibility, the cylinder head also plays a role with. Otherwise, an explorer gt40 setup would be the way to go if on a budget.

Gt40 head porting well i am trying my hand at porting my gt40 heads,any input on how to do a better job. We contacted every major manufacturer and invited them to participate by loaning us an off the shelf head. Home the p head exhaust port has a lot of sharp edges and can really benefit from just a little grinding. Head type, intake port, combustion chamber, intake valve. I called cylinder head service and i can get a rebuilt set of gt40s for. Discussion in the hokey ass message board started by. Performance cnc 5axis cnc ported racing cylinder heads. Remove unnecessary casting material, smoothing out imperfections, and polishing the chambers are all part of the process.