Well with all the problem happening with the very old pieces of my 302, the time has come i will soon just be doing a under the hood restore. However, i come to you experts for opinions! I need to know what type of engine to drop in? Its a 74 mav that has a 302 now. I want something that will fit the current mounting setup and be nothing super expensive or fast. Would it be a good idea to put another 301 in? Also, will a brand new mustang 5.0 fit ? As thats pretty equal to a 302? thanks for any help. and of course when the restoration takes place, ill have pictures
A "new" 5.0 (assuming you're talking a crate motor) will fit. Your next decision would be to go E.F.I. or carbed. I'd look on some of the Mustang boards and see if you can pick up a stocker 5.0. You can find GREAT deals on those. It pays to be patient if you can wait for the right one. Good luck, Rick
I took my engine apart to be able to reach the bolt that snapped and instead of buying new gaskets and settin it back up, i think ill get a new engine now hehe. So i cant really wait. Oh well, that just means imma be workin my a$$ off! And hell im 17, atleast my parents cant charge me for rent. haha. Also... Anyone heard of these guys? http://www.proformanceunlimited.com/home3.html looks like they got some good stuff.
I picked up an mustang gt for $550, engine had 6000 on a rebuild with port polished heads and many racing goodies, etc. I stripped the car, sold all the parts for more than what I paid, and kept the 5.0 and trans for myself. The 5.0 from the late model stangs is the same engine as the older 302's, it will go straight in with only a couple of minor adaptations. You are looking at 225 horse vs the original 141 horse, practically 100 more direct bolt on horses, can't beat that!!! I was going to go efi, and still will eventually, but want mass air so I can run a wicked cam, so I will carb it for now until I find a mass air setup.
engine swap yeah the motors are all the same, just remember,two things,the oil dipsticks are in different locations,and with the later 50 mustang motor the water pump is reversed. so you will have to accomodate this,tom
If your on a budget, the lest expensive way would be to rebuild what you have. If you dont have the knowledge, now is a good time to learn. Take classes. You might even check with the local high school or tech school that has auto courses. If you supply the funds for machine work and parts, they might rebuild it for free, for the experience. The next step would be to buy a remanufactured long or short block. I can highly recommend Jasper. They come with a 3 yr, 75K mile warrenty, parts and labor. Probably the best in the industry. If you know someone, you can pick up a long block for around $1500.
yea i think i will eventually rebuild the current. but with college starting soon, it will more thenliekly be a while from now after college, then after i get my feet on the ground in the "real world" hehe
When talking about those 5.0s, you have to realize where the horse power is measured from. The 145hp for the older 302 is low because it is at the rear wheels. Hp at the flywheel is around 210hp. So you are not really talking about a 100 hp gain. It all depends on where is it dynoed. Also the 5.0 engine has a different sump for the oil. You need to make sure you switch the pick up tube or the oil pan for the pre '82 will not work. If you are going to college and all that I would suggest you just rebuild your existing engine. It will be by far easier with less head aches. If you want some power under the hood, buy the performer cam from edelbrock along with the manifold they offer. It will bump you up to about 270hp at the flywheel. If you are going to go with a later 5.0 make sure it has the roller cam. You can do far more with one. Trust me. I am retrofiting my 77 block to accept one. If you do go with the performer cam, dont forget to adjust your modulator to shift in the range where the cam likes to be. good luck!
Are those edelbrock kits that come with a manifold, carb, cam and lifters good? I have a 71 302 that I am going to be putting into my mav and eventually when I get comfortable (currently driving with a permit) with the power of the 302 over my 200, and the cash, I will put better stuff in the engine. Just curious. -Todd
Actually, this was a topic here a while back. No manufacturer has ever rated HP at the wheels. The 141hp rating for the older 302 is at the flywheel. The reason that you got the 210 rating is that in 72, they changed how they rated the HP, + compression went down half a point. So indeed, by switching to a late model 225 horse roller motor, you do gain almost 100 real horsepower.
In 1972 Ford changed the way they rated horsepower from Gross to NET. In other words, they used to test just the engine, minus all of the accessories bolted on. In 1972, they decided to test the engine, fully equipped, with the engine on the dyno stand. HP was rated at the Flywheel. Since 1972, this is the way we remain to test horsepower. Net-at the flywheel. Horsepower measurement is a standard, that all automakers adhere to. Since 1972 Horspower has been rated at the flywheel. I can say for 100% sure that the '72 and above mav engines have 141 hp at the flywheel. You likely got confused between the Gross and Net figures. I am aware of one exception, and this is the 90's rx7's. They rated at the wheels. While there are always exceptions, the vast majority of the major manufactures adhere to flywheel ratings. One test drive in a bone stock 302 1972 Maverick weighing in at 300-500lbs LESS than my mustang gt convertible will tell you right away that there is an easy 70-100 horse difference, slanted towards the late model motors.
