sawpping 4cyl to 302

90BLKSTANG · 06-09-2001, 04:18 PM

i just bought a 90 stang auto with a 4 cly, i want to transplant a Carb. 302 what do i need to do this swap engine wise? crossmembers?
brackets? etc

84_GT350 · 06-10-2001, 03:22 AM

You'll need a new K-member for sure. Some of your wiring will need to be changed as well. Then there's your standard carb swap stuff as well like some more wiring and a new fuel pump. You'll probably want some better front suspension stuff unless your drag racing in it...then the 4 cyl stuff will be an advantage.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

dinomite · 06-10-2001, 09:43 AM

You'll need a new transmission and rear end as well. You'll want some wider wheels and tires (at least in the rear).

hippi97 · 06-10-2001, 03:02 PM

The 4 cyl k-member is no diffrent than a v-8
k-member the inline 6 is. I did the swap on my 85 and I`m fixing to do it on my 93.

------------------
85 mustang coupe with a 88 block,edelbrock 6022 aluminum heads,crane roller rockers,aluminum driveshaft,C-4 trans,3500 stall,3.73 gears,lakewood traction action liftbars with air bag in right rear spring,longtube headers,flowmasters,
weiand stealth intake,600 holley,
best e.t. 1/8 mile 8.01
best mph. 85.71
best 60 foot 1.72...

Stang951 · 06-10-2001, 05:37 PM

I hate to say this again and I know that noone wants to believe it but the crossmemebers are different. My friend works at Ford and the part numbers are different! His brother did the swap in a 93 vert and we aLL believed the same thing. When we got the motor in, the driveshaft pinion angles were wrong and the motor sat wrong in the engine bay. And no the car was never wrecked. The control arms for different years are also different. The later the year, the beefier the control arm and the more outward they are placed for better handling.

------------------
1988 Mustang LX w5.8/ 1993 Thunderbird LX 5.0 / 1990 5.8 block/ Edelbrock Perfromer Intake/ Edelbrock Performer RPM cam and lifters/ Edelbrock Performer street pump/ Edelbrock timing gears/ Ronald Boudreaux custom headers and exhaust/ Flowmaster 2 chamber mufflers/ March Performance billet aluminum underdrive pulleys/ MSD billet distributor/ MSD 6AL ignition box/ MSD Superconductor wires/ Energy SUspension polyurethane engine and transmission mounts/ Omega adjustable Roller rocker arms / Ford M

dinomite · 06-10-2001, 08:24 PM

If your getting a new k-member, i'd price a tubular, save some massive weight right there.

06-11-2001, 11:57 AM

How much does a K-member weigh? I've heard so many stangers talk about the big weight loss with a tubular, but about how much weight loss is it?

------------------
Dave & Robin 88 GT, T5
306, polished crank, TRW pistons, underdrive pulleys, cold air induction, 73mm MAF, Xtreme Energy Cam, 3.73's, 1 5/8 unequal length headers, Offroad H-pipe, 2 chamber flowmasters, turn-downs, King Cobra Clutch, Steeda adjustable clutch cable with firewall adjuster

LX XLR8R · 06-11-2001, 12:45 PM

you guys sound like a bunch of monkeys trying to f-ck a football..why doesnt everone get on the same page and then go from there
first of all some people are talking about K members and some people are talking about transmision cross members..the k-memeber(frame under the motor)is the same on all fox chassis mustangs
crossmembers(under the tranny) are diffrent on 4 and 8cly..infact they dont even bolt up to the same brakets..all fox chassis have brakets for 8cly..on the 4 cly they add an additional bolt on braket to adapt the 4 cly crossmember..

ok and as for the control arms being pushed more outward over the years is not true..how wuold you expect to move the arms outwards and leave the same mounting brakets on the rear..if you change the angle on one you would have to do both..and i never heard of some being beefier than others either
ok, tranny you really got to get rid of besides being weak its a real PITA to get it to work with a 5.0..
as for the rears if the car came as a 4cly auto then it will have 3.73's in the rear..i have been running a '90 4cly rear(7.5") for 2 months scene i blew up my 8.8 and it works fine but i wouldnt recrmend doing it for long cuz they are extremely weak for 5.0s..
i have done EFI 4cly to 5.0 swaps b4 so if you have any questions feel free to email me

------------------
1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

hippi97 · 06-11-2001, 06:32 PM

Not all foxes have the same k-member. as I stated above the early cars that came with a inline six is diffrent.

LX XLR8R · 06-12-2001, 08:23 AM

ok let me refraise myself..all 87-93 k-members are the same..thier was no 6cly in those years

------------------
1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

06-09-2001, 04:18 PM	#1
90BLKSTANG Registered Member Join Date: Jun 2001 Location: Destrehan,LA Posts: 1	sawpping 4cyl to 302 i just bought a 90 stang auto with a 4 cly, i want to transplant a Carb. 302 what do i need to do this swap engine wise? crossmembers? brackets? etc

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06-10-2001, 03:22 AM	#2
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	You'll need a new K-member for sure. Some of your wiring will need to be changed as well. Then there's your standard carb swap stuff as well like some more wiring and a new fuel pump. You'll probably want some better front suspension stuff unless your drag racing in it...then the 4 cyl stuff will be an advantage. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

06-10-2001, 09:43 AM	#3
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	You'll need a new transmission and rear end as well. You'll want some wider wheels and tires (at least in the rear).

06-10-2001, 03:02 PM	#4
hippi97 Registered Member Join Date: Apr 2001 Location: cohutta georgia Posts: 43	The 4 cyl k-member is no diffrent than a v-8 k-member the inline 6 is. I did the swap on my 85 and I`m fixing to do it on my 93. ------------------ 85 mustang coupe with a 88 block,edelbrock 6022 aluminum heads,crane roller rockers,aluminum driveshaft,C-4 trans,3500 stall,3.73 gears,lakewood traction action liftbars with air bag in right rear spring,longtube headers,flowmasters, weiand stealth intake,600 holley, best e.t. 1/8 mile 8.01 best mph. 85.71 best 60 foot 1.72...

06-10-2001, 05:37 PM	#5
Stang951 Registered Member Join Date: Apr 2001 Location: Metairie, La. USA Posts: 132	I hate to say this again and I know that noone wants to believe it but the crossmemebers are different. My friend works at Ford and the part numbers are different! His brother did the swap in a 93 vert and we aLL believed the same thing. When we got the motor in, the driveshaft pinion angles were wrong and the motor sat wrong in the engine bay. And no the car was never wrecked. The control arms for different years are also different. The later the year, the beefier the control arm and the more outward they are placed for better handling. ------------------ 1988 Mustang LX w5.8/ 1993 Thunderbird LX 5.0 / 1990 5.8 block/ Edelbrock Perfromer Intake/ Edelbrock Performer RPM cam and lifters/ Edelbrock Performer street pump/ Edelbrock timing gears/ Ronald Boudreaux custom headers and exhaust/ Flowmaster 2 chamber mufflers/ March Performance billet aluminum underdrive pulleys/ MSD billet distributor/ MSD 6AL ignition box/ MSD Superconductor wires/ Energy SUspension polyurethane engine and transmission mounts/ Omega adjustable Roller rocker arms / Ford M

06-10-2001, 08:24 PM	#6
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	If your getting a new k-member, i'd price a tubular, save some massive weight right there.

06-11-2001, 11:57 AM	#7
D&R Stang Guest Posts: n/a	How much does a K-member weigh? I've heard so many stangers talk about the big weight loss with a tubular, but about how much weight loss is it? ------------------ Dave & Robin 88 GT, T5 306, polished crank, TRW pistons, underdrive pulleys, cold air induction, 73mm MAF, Xtreme Energy Cam, 3.73's, 1 5/8 unequal length headers, Offroad H-pipe, 2 chamber flowmasters, turn-downs, King Cobra Clutch, Steeda adjustable clutch cable with firewall adjuster

06-11-2001, 12:45 PM	#8
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	you guys sound like a bunch of monkeys trying to f-ck a football..why doesnt everone get on the same page and then go from there first of all some people are talking about K members and some people are talking about transmision cross members..the k-memeber(frame under the motor)is the same on all fox chassis mustangs crossmembers(under the tranny) are diffrent on 4 and 8cly..infact they dont even bolt up to the same brakets..all fox chassis have brakets for 8cly..on the 4 cly they add an additional bolt on braket to adapt the 4 cly crossmember.. ok and as for the control arms being pushed more outward over the years is not true..how wuold you expect to move the arms outwards and leave the same mounting brakets on the rear..if you change the angle on one you would have to do both..and i never heard of some being beefier than others either ok, tranny you really got to get rid of besides being weak its a real PITA to get it to work with a 5.0.. as for the rears if the car came as a 4cly auto then it will have 3.73's in the rear..i have been running a '90 4cly rear(7.5") for 2 months scene i blew up my 8.8 and it works fine but i wouldnt recrmend doing it for long cuz they are extremely weak for 5.0s.. i have done EFI 4cly to 5.0 swaps b4 so if you have any questions feel free to email me ------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one.. AIM=onesillynotch

06-11-2001, 06:32 PM	#9
hippi97 Registered Member Join Date: Apr 2001 Location: cohutta georgia Posts: 43	Not all foxes have the same k-member. as I stated above the early cars that came with a inline six is diffrent.

06-12-2001, 08:23 AM	#10
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	ok let me refraise myself..all 87-93 k-members are the same..thier was no 6cly in those years ------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one.. AIM=onesillynotch