bye bye thunderbird Reply #47 – January 21, 2012, 08:49:23 PM why not drop an LSx in, instead of dropping on the heads? i'll tell you why.. SBC POWERED FORDS MAKE ME PUKE and i don't like the LSx because it was based off FORD'S small block design.. MEANING, GM ran out of options and took a look at what other manufacturers had to offer.. yes, they made changes.. who wouldn't? if ford offered a great flowing head like the LS head, this wouldn't be a conversation, at all.. but in my eyes, it's not fair to compare the 2, as they weren't on the assembly lines at the same time.. the LS came AFTER ford nixed the OHV 302 in the mustangs/birds and jumped head first onto 'perfecting' their mod motors.. if ford had continued the OHV 5.0 in their 'performance' cars, i'm sure it would have been right up there with the LSx head flow rate, etc etc.. Quote Selected
bye bye thunderbird Reply #48 – January 21, 2012, 09:17:50 PM Quote from: Shadow;378343why not drop an LSx in, instead of dropping on the heads? i'll tell you why.. SBC POWERED FORDS MAKE ME PUKE and i don't like the LSx because it was based off FORD'S small block design.. MEANING, GM ran out of options and took a look at what other manufacturers had to offer.. yes, they made changes.. who wouldn't? if ford offered a great flowing head like the LS head, this wouldn't be a conversation, at all.. but in my eyes, it's not fair to compare the 2, as they weren't on the assembly lines at the same time.. the LS came AFTER ford nixed the OHV 302 in the mustangs/birds and jumped head first onto 'perfecting' their mod motors.. if ford had continued the OHV 5.0 in their 'performance' cars, i'm sure it would have been right up there with the LSx head flow rate, etc etc.. So what your saying is gm gave up and copied an older "out dated" design because it was better then what they had been using for 50 years, and that's why they shoulodn't be compared? Andd akso the ls motors started when, 97 98? The ford 302 was in production until at least 2001 in the explorer and moutaineer. Its funny how the more like the sbf the sbc gets, the better it is.And tom, I am not going to spoon feed you anymore. Your smart enough to find it on your own. I also never brought anything up timing wise, so ? Quote Selected
bye bye thunderbird Reply #50 – January 22, 2012, 02:09:56 PM LMAO Tom. If your goal is to be the fastest out there then good for you. It'll never happen. IMHO, that's not what the hobby is about. There will always be somebody faster. Don't get yourself caught up in all that. "Speed has no bearing on your style". Quote Selected
bye bye thunderbird Reply #52 – January 22, 2012, 10:45:30 PM Quote from: TOM Renzo;378401I know what you are saying but installing LS heads on a ford is dun for one reason only MORE HP!!! ThanksThe only reason to install GM LS heads on a Ford motor is poor planning. Quote Selected
bye bye thunderbird Reply #53 – January 23, 2012, 12:34:30 AM Tom, I don't think I could be more clear, as to why I would use the ls heads on a sbf, instead of throwing a sbc at it. But I will try one more time.I persononally have a rebuilt motor. Nothin wrong with it, 17 miles, its a sbf. If I could spend $300 on a set of heads and another $2-$300 for adaptar plates or a intake to run them, instead of spending $1k+ on a set of aftermarket ford heads, I personally would do it. It would save me hundreds, if not thousands if I could just run the ls head, and a converision intake. Especially if I could run an ls1 intake on top of it. I would like to go faster then stock, I have no hp number in mind. I have no engine size or type in mind. I would just like to have fun driving my car. Its not to impress you, or to get attention at a show. I would actually never take a car to a show I don't think.So to re-cap. I would run ls heads because they are dirt cheap, esentially bolt on, and are as good, maybe even better, then a set of aftermarket heads, and I have a new rebuilt sbf sitting here right now. The only thing stopping me is the lack of an intake, and the custom cam. If someone made an intake, I am sure I could swing the extra $30 for a custom cam, or run the intake through the exhaust if I am making my own intake anyways. Quote Selected
bye bye thunderbird Reply #55 – January 23, 2012, 06:45:11 AM Quote from: slowbird;377475well last week i traded my 88 thunderbird(turn key) for an 87 mustang roller just did'nt have it in me to cut up such a clean tbird. kinda sucks cause i regret it but guess ill be on the prowl for another bird come spring hopefully.. sorry had to rant pic of the birdpic of the stang, i am use it as a grudge car n for some street action Just cant beat the old iron and oldschool engineering in the Olds and Pontiac big blocksBut anyway I really, really, really love the G-body Monte Carlo in the picture. Is it an LS with the 305? There is your full framed building block! Quote Selected
bye bye thunderbird Reply #56 – January 23, 2012, 10:07:41 AM Quote from: TOM Renzo;378479OK Stacks when you do this and i have my reservations because it wont be cheap. Post photos and lots of how do you accomplish the transplant. 30 dollars extra for a custom CAM!!!!!! WHERE????????????????You need alot of custom stuffCustom cam the valves are transposed between the engines . Fly cut pistons for the bigger valves in the ls headsSo your built engine will have to be taken apart for piston reliefs and a custom intake so the ports line up right. And i would assume a bigger head bolt is a consideration so the block will have to be re-tapped Along with other mods . This will not be cheap. It seems like you think i fell out of a tree when you post answers. That conversion is expensive and for someone to go through it, it must mean one thing HP increase.Poor planning i don't think so. Then why are so many ford guys doing it. Or should i say trying to do it??????????????Enough said i am refraining once again. I know this is a ford site but someone suggested the swap is a great one and i disagree the sbf cant handle the extra HP the LS heads can make. So just use the whole LS motor and be dun with it. Just My $.02 ThanksPicked this engine up for 500 bucks complete. I reversed the exhaust manifolds to accommodate a turbo. This engine made tuns of HP and i never took it apart. It has 18K when i bought it 6 bolt mains and all. http://guerragroup.com/camshaft_help.htmCustome cam for $25 extra. Comp cams will even make a flat tappet custom for free, matched to your specs. You have to pay extra for them to spec you out one. However, I don't know if a blank is availiable, or if they would have to do something stupid like use areverse rotation marine cam. The internet will be a great tool for you, when you learn to use it. Google is your friend, and you mind is like a paracute, it only works when its open. Just because you don't completely agree with what I say, doesn't mean I am wrong in every way.Fly cutting pistons, again, is not a big deal...I also never said I was going to swap ls heads on, I just said that you could. Once again, reading comprhension is your freinds. When you learn to use it, it will be a great tool.Why would you need a bigger headbolt thena 1/2 inch? A set of 351 heads bolt on with a 1/2 inch bolt, but thousands of people, if not all of them, are using a 7\16ths head bolt, like they were from the factory. I don't know anyone that would waste the money on stepping up a head bolt, for no reason, on a stock block.I have also seen maybe 2 or 3 people that have started to swap on ls heads, not every tom dick and harry with a sbf, and they were all after hp on the cheap.And guess what? If you could just swap on a set of $250 heads and make 400hp, it would be a good swap. Imagine being able to almost split a block n\a using only junk yard parts. Its called hot rodding. One day maybe you will hear about it.If I was to do it, the only real problem would be the intake, once again. If I had the welding capabilities to do a set of headers, I don't see why you couldn't mate up either adaptar plates, or make your own intake using exhaust parts. If I was going to adapt an existing intake, I would probably start with a clevor intake, but I haven't mesured or done any math on anything to see what is closest. If you would like to throw a set of ls heads on a sbf and make some mesurements, go ahead.Let me know if you have any more basic questions that can be answered with a google search. I know its hard to figure out the first couple times. Quote Selected
bye bye thunderbird Reply #57 – January 23, 2012, 11:24:44 AM QuotePoor planning i don't think so. Then why are so many ford guys doing it.Yes, I 'm quite sure this is a quite common mod Quotebut someone suggested the swap is a great one and i disagree the sbf cant handle the extra HP the LS heads can make. So just use the whole LS motor and be dun with it. Just My $.02 Thanks\That I can agree with (swapping the motor as a whole) although I think it's blasphemous and unnecessary. To each his own. Tom, what WOULD swapping a set of factory LS heads net on an otherwise stock sbf (302)? I can't agree with you here. The limit is the block and the Ford heads weather they be aftermarket or re-worked can make enough power to split the weak factory block. Quote Selected
bye bye thunderbird Reply #59 – January 24, 2012, 09:32:36 PM Quote from: beast50;378480Just cant beat the old iron and oldschool engineering in the Olds and Pontiac big blocksBut anyway I really, really, really love the G-body Monte Carlo in the picture. Is it an LS with the 305? There is your full framed building block! is an LS 6cylinder 50,000 miles on it its my younger bros car(his first car) Quote Selected
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