GT40 heads?

[Lone Sailor]

He is talking heads , rockers and springs for that . I think its worth it for a stock 302 . I like the way gt40's work on them and I have had both alum's and gt40's . Once you go past the stock ci you should upgrade .

I realize it has the stock 1.72 rockers with it. Springs really aren't going to be worth much for his application unless he is changing to a higher lift cam, IMO. I've done the swap a couple of times on stock and mildly modified cars, and for the cost, time invested, and performance gain it's hardly worth it when you look at where the aluminum heads are. As well, you're going to get 10 times better design and power potential for your dollar with aluminum, not too mention the fact that you're knocking 50 pounds of weight off the front end versus GT40 cast iron heads. To each their own though, it's his money and I'm not knocking him if he goes with GT40 heads, but from someone who has done this a few times it's just easier to bypass the urge to use 18 year old Ford technology when you can have much newer technology for a few more dollars.

[carbd89sleeper]

Thats a good deal but he just got a set and a cam for 300 . He already had rockers .

Thanks again dumpycapri85, Yeah I know I can get some good alums for 700 or so but, i haven't found any worth the 700 plus i would have to take them to the shop and get them done over thatd another couple $$ from what i've found plus rockers, I think for my app it'll suffice for now, and if i wanna go big, I can always pull them and get just about what i paid for them seeing is how lots of peeps start out at this route, but yeah I agree on alums saving weight and perfomance wise, but in my current situation im not looking to run 9s at this time, just a nice street/strip combo to feed the need for now...the way I see it 300 for heads and a cam is a great price for an upgrade over stock...to each his own, Thanks everyone for the advice and suggestions!!

[carbd89sleeper]

Im also upgrading the springs to the TFS springs.....so total 450 give or take a few $$ for complete redone heads and cam...I'm pretty sure I'll see vast improvement over stock....good bang for my buck!!

[dumpycapri85]

I realize it has the stock 1.72 rockers with it. Springs really aren't going to be worth much for his application unless he is changing to a higher lift cam, IMO. I've done the swap a couple of times on stock and mildly modified cars, and for the cost, time invested, and performance gain it's hardly worth it when you look at where the aluminum heads are. As well, you're going to get 10 times better design and power potential for your dollar with aluminum, not too mention the fact that you're knocking 50 pounds of weight off the front end versus GT40 cast iron heads. To each their own though, it's his money and I'm not knocking him if he goes with GT40 heads, but from someone who has done this a few times it's just easier to bypass the urge to use 18 year old Ford technology when you can have much newer technology for a few more dollars.

I agree if the budget allows but don't forget that just because they are older tech does not mean they don't work . These and the original Allen Root alum's that became the gt40's are what kicked off the 5.0 landslide . I suggested the spring upgrade because he is using a b cam with the heads and the mileage is not known on the ones that are on them . The tfs spring kit gives you new locks and retainers as well as valve seals and a hight checker for 139 bucks . They are cheap insurance . So for 439 he has heads and a cam that work well for a street bound 302 with stock pistons . A little port work and matching and its a good solid combo . We all agree that alum is the way to go if its in the buget . I have 3 sets of alum's on different motors but I am building a 306 now with a set of iron gt's because I like them and they do work . Hell e5-e7's work with enough boost right ? When I first built my capri with the stock motor I ported the e-5's and ran a like b cam and the car would run 8.1's with 2.0 60's and stone stock suspension in a full weight car with just shorties . That is not bad for a little bench time and the 40's are way better then the 5,6,7's . We all want themost for the $ but the $400.00 alums aren't always around when we are looking (not that they don't pop up once in a while ) and have the cash .

[dblack1]

I've got a set of aluminum SVO heads with the blue SVO rockers I'll sell for $700 if you want to meet in texarkana. They were pulled from a lower mileage stock motor and you'd be fine to bolt them on a motor and go. I took them on trade for a set of TW heads I had laying around.

I've gone 12.1x with gt40 irons, cobra intake, stock cam, drag radials, and a AOD in a mildly gutted car. Would have gone 11's with a better stall. Car weighed 3,190.

[dumpycapri85]

I've got a set of aluminum SVO heads with the blue SVO rockers I'll sell for $700 if you want to meet in texarkana. They were pulled from a lower mileage stock motor and you'd be fine to bolt them on a motor and go. I took them on trade for a set of TW heads I had laying around.

I've gone 12.1x with gt40 irons, cobra intake, stock cam, drag radials, and a AOD in a mildly gutted car. Would have gone 11's with a better stall. Car weighed 3,190.

That is exactly what I mean when I say there is nothing wrong with irons . He is running a 5 speed , 3.73's and a carb so it should run well .

[carbd89sleeper]

I've got a set of aluminum SVO heads with the blue SVO rockers I'll sell for $700 if you want to meet in texarkana. They were pulled from a lower mileage stock motor and you'd be fine to bolt them on a motor and go. I took them on trade for a set of TW heads I had laying around.

I've gone 12.1x with gt40 irons, cobra intake, stock cam, drag radials, and a AOD in a mildly gutted car. Would have gone 11's with a better stall. Car weighed 3,190.

Im pretty set on the old irons for now...i gotta deal in the works on them but thanks for the offer.

My set up is looking like this...stock bottom end, gt40s w/ 1.7s tfs springs, vic jr. intake, bcam, holley650dp, msd ign,bbk shorties, 3.73s, catless H-pipe w/flows in a 5spd w/steeda short shift.. full interior 89 Hatch...hopin to run in the 12s at least!!!....maybe add a 100shot in the future?!?!?

[85turbocoupe]

Im pretty set on the old irons for now...i gotta deal in the works on them but thanks for the offer.

My set up is looking like this...stock bottom end, gt40s w/ 1.7s tfs springs, vic jr. intake, bcam, holley650dp, msd ign,bbk shorties, 3.73s, catless H-pipe w/flows in a 5spd w/steeda short shift.. full interior 89 Hatch...hopin to run in the 12s at least!!!....maybe add a 100shot in the future?!?!?

Just my opinion but the Vic jr is out of place in your setup. I'd try a Weiand stealth or something that operates in the range of your combo. That bcam is gonna be done by 5500 rpm.

[dumpycapri85]

An Airgap would be a better choice but he already has the jr.

[carbd89sleeper]

Just my opinion but the Vic jr is out of place in your setup. I'd try a Weiand stealth or something that operates in the range of your combo. That bcam is gonna be done by 5500 rpm.

Im on a budget here and I still have a eddy performer intake....but that's stepping down tryin to get rid of it any takers?!?!?

[85turbocoupe]

Im on a budget here and I still have a eddy performer intake....but that's stepping down tryin to get rid of it any takers?!?!?

I bet it'd run better with the performer over that Vic jr.

[carbd89sleeper]

I bet it'd run better with the performer over that Vic jr.

Really

[85turbocoupe]

For sure man! You have a stock blocked, GT40 headed, B303 setup which dictates an idle to 6250rpm band at best. Why would you throw a HUGE intake that makes power from 3500-8000rpm on it? Do you like torque? You will have none with that intake/cam combo and it will be a dog. Just trying to help you out. You don't have to spend a bunch to make good power... You just need to make sure everything is working together. Below is a little GT40p combo from my kids old setup. GT40p (thumper springs), E303, 1.7 rockers, GT40 intake, around 9.5:1 compression. Notice how it's not still pulling past 5500. I realize you have a B303 but that just means you'll have even less torque over the setup below and not enough top end to utilize that vic jr. Just trying to help you out bud! I'd also have those GT40's cc'd and mill them to get your compression up to the 10:1 range. Cheap and effective.

[carbd89sleeper]

Thanks for the insight man, dumpycapri is helping me get all this together I'm sure we'll figure somethin out, thanks again....

[carbd89sleeper]

For sure man! You have a stock blocked, GT40 headed, B303 setup which dictates an idle to 6250rpm band at best. Why would you throw a HUGE intake that makes power from 3500-8000rpm on it? Do you like torque? You will have none with that intake/cam combo and it will be a dog. Just trying to help you out. You don't have to spend a bunch to make good power... You just need to make sure everything is working together. Below is a little GT40p combo from my kids old setup. GT40p (thumper springs), E303, 1.7 rockers, GT40 intake, around 9.5:1 compression. Notice how it's not still pulling past 5500. I realize you have a B303 but that just means you'll have even less torque over the setup below and not enough top end to utilize that vic jr. Just trying to help you out bud! I'd also have those GT40's cc'd and mill them to get your compression up to the 10:1 range. Cheap and effective.

My original plan was to get some eddy performer heads.....hence the vic Jr......