347 vs 351

Five0 · 05-29-2001, 10:24 PM

I am thinking about swapping out my 302 for a 347 or 351w. If I go with the 351w I will eventually but a stroker kit into it. If I go with the 347 I will leave it alone.

I have a few questions.

If I get a 351w I know I will have to get a new distributor, oil pan, ac bracket, headers, and flywheel.
What else will I need to get and how much is each part going to cost me?
Can I get a distributor out of a used car and if so what kind; the car will be carbureted?
What other used parts can I get if I can find them that would work?
Do you think I will be better off getting the 347 or going with the 351?
There is a place here in town that builds 347 strokers with any compression ratio for 2000.00 and I have heard good things about them.

------------------
James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

crewzin · 05-29-2001, 10:36 PM

The stroker would probably be cheaper in the long run due to the fact that stock stuff will bolt right back on. The 351 will be more expensive but has room for improvements in size later. Money always dictates the end result, trust me I know. Im putting in a 347 and a lot of little things cost ya. So im glad I did'nt go with the big block I was wanting,I would'nt have been able to afford it.

Five0 · 05-29-2001, 10:39 PM

One more question. If I get a used motor, what kind of vehicles should I be looking for to get it from? I would be looking for something that I could just drop in and go, or at least as close too as possible.

------------------
James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

WADS56 · 05-29-2001, 11:49 PM

They did a 347 vs 351 in the 5.0 mag a couple of months back. I chose the the 347 because it is lighter and and I could use the parts that I already had. I see that you have canfield heads... they work exellent on stroker 302's and 351's so you can't go wrong.

------------------
347 W/ A-trim 6#'s, Canfield heads, out of the box Systemax II intake, solid roller cam. 11.1 @123mph 1.46 60FT

93lx 5.0 daily driver
MY CAR http://www.mustangworks.com/cgi-bin/...splay.cgi?1288

Stang_ROTY · 05-30-2001, 11:31 AM

The bottom line is....what type of bucks you have will dictate what you get. The 351W will need a hood, a distributor (don't know about used ones...I bought the MSD) and a new lower EFI manifold if your going EFI. In my opinion, the 351W was the right decision for me because I bought my car with no motor or tranny. You have to decide what your budget will allow you to do. If money is no object than go with the 351 stroker and you'll be happy. You can get more HP and torque at a lower rpm than a smaller 302 or 347. Plus, the main caps are stronger than production 302's.

------------------
Almost done

93 GT, Undecided btw Lentech AOD & Dynamic C4, 8 pt cage, chute,
Sothside Machine bars & Sub-frames, 3.73's
'69 393 stroker w/SRP pistons, Edlebrock Performer heads, Performer RPM Upper & Lower Manifold..Crane Gold 1.6 Rollers Comp Cam..BBK 70MM TB, ceraminc shorties & H-pipe w/cats..30lb Injectors..Cartech Fuel System..etc

05-29-2001, 10:24 PM	#1
Five0 Registered Member Join Date: Apr 2000 Location: middleburg, fl, usa Posts: 1,134	347 vs 351 I am thinking about swapping out my 302 for a 347 or 351w. If I go with the 351w I will eventually but a stroker kit into it. If I go with the 347 I will leave it alone. I have a few questions. If I get a 351w I know I will have to get a new distributor, oil pan, ac bracket, headers, and flywheel. What else will I need to get and how much is each part going to cost me? Can I get a distributor out of a used car and if so what kind; the car will be carbureted? What other used parts can I get if I can find them that would work? Do you think I will be better off getting the 347 or going with the 351? There is a place here in town that builds 347 strokers with any compression ratio for 2000.00 and I have heard good things about them. ------------------ James Cox nochevy@hotmail.com 1991 Mustang LX 12.565 @109.38mph 1.764 60ft

05-29-2001, 10:36 PM	#2
crewzin Registered Member Join Date: May 2001 Location: Sour Lake, TX Posts: 211	The stroker would probably be cheaper in the long run due to the fact that stock stuff will bolt right back on. The 351 will be more expensive but has room for improvements in size later. Money always dictates the end result, trust me I know. Im putting in a 347 and a lot of little things cost ya. So im glad I did'nt go with the big block I was wanting,I would'nt have been able to afford it.

05-29-2001, 10:39 PM	#3
Five0 Registered Member Join Date: Apr 2000 Location: middleburg, fl, usa Posts: 1,134	One more question. If I get a used motor, what kind of vehicles should I be looking for to get it from? I would be looking for something that I could just drop in and go, or at least as close too as possible. ------------------ James Cox nochevy@hotmail.com 1991 Mustang LX 12.565 @109.38mph 1.764 60ft

05-29-2001, 11:49 PM	#4
WADS56 gear banger Join Date: Aug 2000 Location: CHICAGO Posts: 1,144	They did a 347 vs 351 in the 5.0 mag a couple of months back. I chose the the 347 because it is lighter and and I could use the parts that I already had. I see that you have canfield heads... they work exellent on stroker 302's and 351's so you can't go wrong. ------------------ 347 W/ A-trim 6#'s, Canfield heads, out of the box Systemax II intake, solid roller cam. 11.1 @123mph 1.46 60FT 93lx 5.0 daily driver MY CAR http://www.mustangworks.com/cgi-bin/...splay.cgi?1288

05-30-2001, 11:31 AM	#5
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	The bottom line is....what type of bucks you have will dictate what you get. The 351W will need a hood, a distributor (don't know about used ones...I bought the MSD) and a new lower EFI manifold if your going EFI. In my opinion, the 351W was the right decision for me because I bought my car with no motor or tranny. You have to decide what your budget will allow you to do. If money is no object than go with the 351 stroker and you'll be happy. You can get more HP and torque at a lower rpm than a smaller 302 or 347. Plus, the main caps are stronger than production 302's. ------------------ Almost done 93 GT, Undecided btw Lentech AOD & Dynamic C4, 8 pt cage, chute, Sothside Machine bars & Sub-frames, 3.73's '69 393 stroker w/SRP pistons, Edlebrock Performer heads, Performer RPM Upper & Lower Manifold..Crane Gold 1.6 Rollers Comp Cam..BBK 70MM TB, ceraminc shorties & H-pipe w/cats..30lb Injectors..Cartech Fuel System..etc