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mustang chevy swap

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mustang chevy swap - 4/19/2007 10:51:52 PM

meno1103

Posts: 1
Joined: 4/19/2007
Status: offline

Hey all, i have a 1987 mustang 5.0 that i have thought about puttin a new motor in and i happen to have one....but im not sure how to go about swappin it. Its a 454 chevy around the year '74, i have seen motor mounts to swap in a chevy small block but i need help on finding ones for a big block, and also headers. I wont worry about the fuel injection, im sticking to the motor's carb. Any and all help is much appreciated

_____________________________

1987 mustang gt
mild 5.0
flowmaster exhaust
running good and paid under 2 grand :)

Post #: 1

RE: mustang chevy swap - 4/24/2007 11:34:42 AM

6t5frlane

Posts: 5
Joined: 5/22/2006
Status: offline

I would not bother. Too much trouble and weighjt on the front. Re build the 302

(in reply to meno1103)

Post #: 2

RE: mustang chevy swap - 4/30/2007 11:53:31 PM

bosscobra

Posts: 2
Joined: 4/25/2007
Status: offline

hey in the latest hot rod mag theyr puttin an LS1 into a fox body...u should check it out

(in reply to 6t5frlane)

Post #: 3

RE: mustang chevy swap - 5/1/2007 5:52:13 AM

91explorer12323

Posts: 132
Joined: 4/8/2007
Status: offline

Just a couple things to consider before doing this engine swap! first off do you have the suspension for this big of a engine? Also do you have a full frame already? if you just have sub frames in the front and back the full frame rail kit would be a must when putting in a big block of any kind. And finally the engine,,dont get me wrong there is nothing at all wrong with a 454 I love the big block engines of the good ol days i personally wish engines would have stayed more like them days then this whole computerized era we are in now but the thing i was concerned with is the year of the 454 your looking at. by 74 you are looking at a pretty weak engine as is from the factory.I am Not trying to offend you or dog the engine, its just things really went to crap with big blocks and small block V-8's after the end of the 60's and the begining of the "fuel bull" in the early 70's. Horsepower on these big block engines and small block V-8's for that matter were reduced to almost half as much in the mid 70's as they were in they late 60's. I bought a 455 big block oldsmoble engine one time along time ago and i was told it was from like 69 or 68 yeah sure thats what they all say.. i found out about a year late that it was about a 74 or 75 and let me tell ya it was weak!!!! the one i thought i was getting from the late 60's was rated in different set ups to as much as 390 horsepower stock the 74 or 75 i really had was only rated from like 190 to 215 max horsepower...BIG DIFFERENCE!!! needless to say i was pissed lol... so if you do some looking into it, the horsepower of that paticular big block might not be worth the trouble unless it has been rebuilt to the specs of late 60's or maybe even the very early 70,s but by the time you get past 71 maybe 72 chalk it up they are all weak..The one thing that I will mention though is that horepower aside the big blocks will always yeild high torque rather its 60's or 70's the long stroke is still there so the torque is also. well i hope this will help you in your project I think these little mustangs are fun to have alot of toque and horsepower in,, I am currently working on a late 60's ford 427 CJ that I will be stuffing into my 01 mustang after its paid off here in 6 months and i take it completely over from my wife lol..good luck to you and let me know how it goes thru out the project if you wouldnt mind id like to know how this one turns out.

(in reply to bosscobra)

Post #: 4

RE: mustang chevy swap - 10/10/2007 5:50:06 PM

67_stang