331 or 347?
05-23-2006, 02:20 PM
#1
Thread Starter
Join Date: Mar 2006
Location:
Posts: 11
331 or 347?
basically i am selling my current car so i can build a mustang. i was plannin on going with a 347 but a mustang shop told me that they had problems with that motor using lots of oil and i should do a 331. wanted to get more input before i make any decisions. any help or opinions appreciated. or if there is a better set up you know of let me know.
thanks.
thanks.
05-23-2006, 02:50 PM
#2
I ♥ Acer
Join Date: May 2006
Location:
Posts: 1,364
RE: 331 or 347?
ORIGINAL: 95SVT5.0
basically i am selling my current car so i can build a mustang. i was plannin on going with a 347 but a mustang shop told me that they had problems with that motor using lots of oil and i should do a 331. wanted to get more input before i make any decisions. any help or opinions appreciated. or if there is a better set up you know of let me know.
thanks.
basically i am selling my current car so i can build a mustang. i was plannin on going with a 347 but a mustang shop told me that they had problems with that motor using lots of oil and i should do a 331. wanted to get more input before i make any decisions. any help or opinions appreciated. or if there is a better set up you know of let me know.
thanks.
05-23-2006, 02:56 PM
#3
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 5,263
RE: 331 or 347?
forget stroking the 302, get a 351W and have more stroke, for less money
with a stronger block. Stock computer works fine with a chip change and everything
else bolts up.
http://www.fordcobraengines.com/351W...elInjected.htm
400hp 351W for ........... $7000
or
http://www.fordcobraengines.com/347_...elInjected.htm
400hp 347 for ............... $9,000
hmmm, i think i'll go with the 351w and save $2,000
with a stronger block. Stock computer works fine with a chip change and everything
else bolts up.
http://www.fordcobraengines.com/351W...elInjected.htm
400hp 351W for ........... $7000
or
http://www.fordcobraengines.com/347_...elInjected.htm
400hp 347 for ............... $9,000
hmmm, i think i'll go with the 351w and save $2,000
05-23-2006, 03:08 PM
#4
5th Gear Member
Join Date: Mar 2006
Location: Greenville SC
Posts: 2,317
RE: 331 or 347?
Well thing 302 and 351 Intakes wont interchange. THe 351 has a higher deck height and your going to need 351 headers made for a Fox. Cause the 351's deck is 1.275 higher than the 302. The older 302 blocks are a little stronger than the 5.0 blocks. From 1968 through about 1974 are the best years for the 302 blocks and stock heads for that matter.
05-23-2006, 04:08 PM
#5
6th Gear Member
Join Date: Sep 2005
Location: Hamilton, NJ
Posts: 15,042
RE: 331 or 347?
Basically every company sells headers for 351W's so it would not be hard to find them. I dont know exactally which company but I know there are a few out there that sell conversion kits for this swap specifically.
05-23-2006, 04:11 PM
#6
5th Gear Member
Join Date: Jun 2005
Location: Michigan
Posts: 3,986
RE: 331 or 347?
The older 347 kits had problems with the oil ring and land. The new kits no longer have that problem. Just make sure when you look at buyng a kit that it indeed is a new one, youll be able to tell by the piston.
-P.
-P.
05-23-2006, 05:56 PM
#9
Join Date: Mar 2004
Posts: 29
RE: 331 or 347?
+1 for the 347. I dont have one in my mustang but i do have one in my falcon and the thing cooks. I'ts been through a lot of abuse but still pulls hard and doesnt smoke, eat oil or anything else. Gas mileage is the only problem for me; 5mpg....but thats the price you pay.