ArdWrknTrk Posted August 2, 2020 Share Posted August 2, 2020 I believe the most ported GT40 heads I seen that were flow tested were still a good ways away from a good set of aftermarket heads out of the box. Data I saw was GT40 heads with some port work flowed 225 cfm on intake @ 0.500" lift and 173 cfm on exhaust @ 0.500" lift using stock GT40 valves. On Ford forums Ive seen home porting/polishing being done by individuals and seeing 213cfm intake and 163cfm exhaust. I think with GT40 heads I think the max will be around 220-225 cfm Intake and 170 cfm Exhaust. For the GT40P heads ive seen it claimed they can flow up to and over 240 cfm with full port work on the intake. I dont know if I truly believe that as GT40 and GT40P heads have been made obsolete by CNC machined aluminum heads as they outflow a full ported stock head out of the box. 240+ cfm on intake on ported GT40P heads sounds a little too high considering AFR Rengade heads are 260 cfm intake out of the box. I honestly thought about grabbing some lightning parts for my 306 build but dont think it would work out for me DD2000 I actually got for free years ago when those filesharing sites were still up back in the 90`s. So mine is quite old but I have learned how to use it and found it is pretty close when you put in accurate information. Some times you have to tweak the Intake Center Line to get the valve timing to be correct. You could punch in the valve timing itself but ive seen that actually result in a incorrect duration before, i see it more so on agressively ramped roller cams. But the GT40 heads still are good street heads if you are not looking for all out power. Can usually pick up a pair for around $1,200 - $1,300. I justified it to myself by saying $1,800 is only $500-$600 more and I wouldnt have to spend any money on port work or adjustable valve train for my cam. Well, better flowing than E7's at any rate. Cheap as dirt if you find a V-8 Exploder no one knows about yet... I guess that's one of the advantages of having tow buddies. You never know what might be hidden in someone's back yard or might crap out on the road tomorrow. They seem perfect for what GSM is asking, but I wouldn't pay much for them. Class racing will build a.following and market for any advantage. A carb adapter manifold and something like a Q-jet would seem ideal for this build too. But I'm a skint bastard who loves cobbling junk and KISS. I want to be able to fix my stuff with basic tools on the side of the road . (I'm proving that wrong right now 🤣) Link to comment Share on other sites More sharing options...
Rusty_S85 Posted August 2, 2020 Share Posted August 2, 2020 Well, better flowing than E7's at any rate. Cheap as dirt if you find a V-8 Exploder no one knows about yet... I guess that's one of the advantages of having tow buddies. You never know what might be hidden in someone's back yard or might crap out on the road tomorrow. They seem perfect for what GSM is asking, but I wouldn't pay much for them. Class racing will build a.following and market for any advantage. A carb adapter manifold and something like a Q-jet would seem ideal for this build too. But I'm a skint bastard who loves cobbling junk and KISS. I want to be able to fix my stuff with basic tools on the side of the road . (I'm proving that wrong right now 🤣) Correct, the GT40 heads will be worlds better than the E7 stock for stock. Even porting the E7`s wont come close to a set of GT40 heads from the reading I done. I still believe a stock like 96 explorer engine with the GT40 heads would be his best bet for a daily driver. Sure wont make a whole lot of power like a built engine that isnt being setup for emissions like Ford did but it will still be a good engine. The explorers can be had cheap depending on location. Here in Texas trucks and suv`s bring a premium and some times its hard to get a junked vehicle from a junkyard for cheap. Same with engines, every one I looked at for a 96 explorer engine seems to be around $2500 - $3500 and they claim it was running when it came in. No way to verify it and you know it will be best to rebuild it cause they will do damage. We've done junkyard engines at work and we've found oil pans speared by the forklift down to broken sensors and bolts. Even had one come in with a shattered intake due to how they removed it. But that isnt a given thats just around here. There is a place online that sells a 96 Explorer long block but they dont offer a warranty anymore now. They told me they only offer a warranty if the engine is going in the vehicle it is listed for. I told them that was a c.s. thing to do to not warranty an engine because its going in something other than their listed application. The engine doesnt know what its going in and that tells me that the engine must not be that good if they wont honor a warranty in another vehicle. But they also went up on the price was $3,500 when it was $2,500 before. Im sure if he looks around he might be able to finda 96 Explorer 302 with the GT40 heads as a built long block. Then just pickup a intake and carb and back date it. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 2, 2020 Share Posted August 2, 2020 Correct, the GT40 heads will be worlds better than the E7 stock for stock. Even porting the E7`s wont come close to a set of GT40 heads from the reading I done. I still believe a stock like 96 explorer engine with the GT40 heads would be his best bet for a daily driver. Sure wont make a whole lot of power like a built engine that isnt being setup for emissions like Ford did but it will still be a good engine. The explorers can be had cheap depending on location. Here in Texas trucks and suv`s bring a premium and some times its hard to get a junked vehicle from a junkyard for cheap. Same with engines, every one I looked at for a 96 explorer engine seems to be around $2500 - $3500 and they claim it was running when it came in. No way to verify it and you know it will be best to rebuild it cause they will do damage. We've done junkyard engines at work and we've found oil pans speared by the forklift down to broken sensors and bolts. Even had one come in with a shattered intake due to how they removed it. But that isnt a given thats just around here. There is a place online that sells a 96 Explorer long block but they dont offer a warranty anymore now. They told me they only offer a warranty if the engine is going in the vehicle it is listed for. I told them that was a c.s. thing to do to not warranty an engine because its going in something other than their listed application. The engine doesnt know what its going in and that tells me that the engine must not be that good if they wont honor a warranty in another vehicle. But they also went up on the price was $3,500 when it was $2,500 before. Im sure if he looks around he might be able to finda 96 Explorer 302 with the GT40 heads as a built long block. Then just pickup a intake and carb and back date it. That's why I said it's good we -tow buddies- here all know one another and look out (before the vehicles even get dropped off the flatbed) If it never makes it to the yard, the most price is scrap value. Espy already has a 351. Why would you want to give up an extra 16%? (under any circumstance) Link to comment Share on other sites More sharing options...
Rusty_S85 Posted August 2, 2020 Share Posted August 2, 2020 That's why I said it's good we -tow buddies- here all know one another and look out (before the vehicles even get dropped off the flatbed) If it never makes it to the yard, the most price is scrap value. Espy already has a 351. Why would you want to give up an extra 16%? (under any circumstance) Yep, I got a few tow buddies from work, she used her flat bed to tow my 56 home some 15 miles and she said if I got cash $100 and she didnt even fill out a wrecker bill or anything. With a wrecker bill would have cost me some $195 to $200 with all the fees. It also helps if you know someone that knows how to make something disappear. We actually have a truck at work I been seriously thinking of robbing parts off of. its like a '83 F150 extended cab we put a 351w crate engine in it and then the owner didnt want to pay the bill after her husband came over and added a bunch more onto the repair order. Been 2 1/2 years almost now since we did it and Im seriously tempted to see if the aircleaner is in good shape to rob off it for my truck as well as seeing if I could hack off the hook style tail pipe hanger and see how it bolts in on my truck. If it fits right would make my life easier than hacking my new tail pipe up to weld on the correct hanger to fit my OE frame hanger. That works for me cause boss is ready to part the truck out as its in our way. Just make it disappear since we havent heard from the people in some year and a half now. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 2, 2020 Share Posted August 2, 2020 Yep, I got a few tow buddies from work, she used her flat bed to tow my 56 home some 15 miles and she said if I got cash $100 and she didnt even fill out a wrecker bill or anything. With a wrecker bill would have cost me some $195 to $200 with all the fees. It also helps if you know someone that knows how to make something disappear. We actually have a truck at work I been seriously thinking of robbing parts off of. its like a '83 F150 extended cab we put a 351w crate engine in it and then the owner didnt want to pay the bill after her husband came over and added a bunch more onto the repair order. Been 2 1/2 years almost now since we did it and Im seriously tempted to see if the aircleaner is in good shape to rob off it for my truck as well as seeing if I could hack off the hook style tail pipe hanger and see how it bolts in on my truck. If it fits right would make my life easier than hacking my new tail pipe up to weld on the correct hanger to fit my OE frame hanger. That works for me cause boss is ready to part the truck out as its in our way. Just make it disappear since we havent heard from the people in some year and a half now. Yeah, you've already told me how stupid expensive it is to file a mechanics lien and get title it is down there. Around here where land is expensive, we have few bigger yards, and many places shred vehicles right into train cars or barges. Someone would REALLY want to find that vehicle (like it was a mob hit) to dig through all those chunks. A few yards were notorious for taking anything and "making it go away". I can't mention names, and I wouldn't EVER want to cross those guys. They are very useful to have on your side. Link to comment Share on other sites More sharing options...
Rusty_S85 Posted August 2, 2020 Share Posted August 2, 2020 Yeah, you've already told me how stupid expensive it is to file a mechanics lien and get title it is down there. Around here where land is expensive, we have few bigger yards, and many places shred vehicles right into train cars or barges. Someone would REALLY want to find that vehicle (like it was a mob hit) to dig through all those chunks. A few yards were notorious for taking anything and "making it go away". I can't mention names, and I wouldn't EVER want to cross those guys. They are very useful to have on your side. It is, cost you money, takes time, and the owner is notified of the lien and they can come up and dispute it by claiming they never authorized the work. Its actually easier to just make it disappear and then play dumb like "oh you didnt come and get it? well it was gone from here like 4 weeks ago we thought you came and took it when we were closed saturday/sunday Junkyards arent too bad to dispose of a vehicle, but scrap yards to shread a car you have to present the title to them to prove you own the vehicle. Link to comment Share on other sites More sharing options...
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