351 swap

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ty-rone

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Mar 30, 2005

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Apr 6, 2005

#1

• Apr 6, 2005

• #1

I am thinking of swapping in a 351, but a roller engine. I believe it was 94-96 they were roller right? Anyway, would a scrap yard e-class van be a good place to find one? I am looking to build a modest 351, heads, intake, cam, nothing too extreme. I know they are not the strongest 351 blocks, but would a stug girdle tighten it up nicely?

 

DarkMesa8

Founding Member

Oct 15, 2002

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Orlando, FL

Apr 6, 2005

#2

• Apr 6, 2005

• #2

ty-rone said:

I am thinking of swapping in a 351, but a roller engine. I believe it was 94-96 they were roller right? Anyway, would a scrap yard e-class van be a good place to find one? I am looking to build a modest 351, heads, intake, cam, nothing too extreme. I know they are not the strongest 351 blocks, but would a stug girdle tighten it up nicely?

Click to expand...

Stud girdles spread the load and help, but nothing too significant from what I've heard (just heard, never tested). But a general known fact is that if you do manage to split a 351W block, it'll hold it together saving your rotating assembling.

What's your budget? My extremely cheap/reuse a lot of parts is predicted to fall into the $4000 range. My initial goal was putting me at $5500, but I had to drop stuff like the aluminum flywheel, H-Beam rods, lightweight pistons etc.

E-Van, Truck, etc, they're all good places for a 351W, just not sure if its the one you'll want.

PS: The search function here, and on corral has provided me with more info than I can process. Type "351W swap"

 

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ty-rone

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Mar 30, 2005

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Apr 6, 2005

#3

• Apr 6, 2005

• #3

I Was planning on using a mildy stock rebuilt 351, with somthing like a b cam, stock cleaned up heads, edelbrock performer or the like intake. I am not look to go to exotic, just want somthing different for my next project.

If I got a roller 351 stock short block from a local engine builder, would it handle 350 -400 horse?

 

DarkMesa8

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Oct 15, 2002

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Apr 6, 2005

#4

• Apr 6, 2005

• #4

ty-rone said:

I Was planning on using a mildy stock rebuilt 351, with somthing like a b cam, stock cleaned up heads, edelbrock performer or the like intake. I am not look to go to exotic, just want somthing different for my next project.

If I got a roller 351 stock short block from a local engine builder, would it handle 350 -400 horse?

Click to expand...

It certainly handle 350hp, but with stock heads of any form, even the lightning heads, you won't see anywhere close to that.

 

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SPEED FREAK

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Aug 7, 2000

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Apr 6, 2005

#5

• Apr 6, 2005

• #5

351w blocks are ultra meaty I would imagine they could handle more than 800 hp

 

DarkMesa8

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Oct 15, 2002

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Apr 6, 2005

#6

• Apr 6, 2005

• #6

SPEED FREAK said:

351w blocks are ultra meaty I would imagine they could handle more than 800 hp

Click to expand...

Depending on the year, they changed the casting in 74.

 

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ty-rone

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Mar 30, 2005

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Apr 6, 2005

#7

• Apr 6, 2005

• #7

I have heard the roller blocks are the weakest of all, but I think they are still much stronger then the 302.

You can use 5.8 head on a 5.0, but can you do the reverse? Could you slap somt gt-40p's on a 5.8, or would the bolt holes be to small on the head.

 

bjl95mustang

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Jan 18, 2000

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Apr 6, 2005

#8

• Apr 6, 2005

• #8

You just have to drill the bolt holes to 1/2"

 

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ty-rone

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#9

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• #9

oh ok, I thought it was the other way around, if you want to use 5.8 heads on a 302 you need to drill them out.

 

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iapexl8r

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Apr 1, 2005

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Apr 6, 2005

#10

• Apr 6, 2005

• #10

most aftermarket heads come with the 1/2" head bolt holes, thats why they have the little spacers for use on the 302/5.0 motors. Chris

 

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spierce

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Jul 27, 2004

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Tucson, AZ

Nov 8, 2006

#11

• Nov 8, 2006

• #11

a B cam will most likely be too small for a 351.
remember the rule, if it works on a 302 and you put it on a 351 then your 351 is going to run like a 302.

I built my entire motor for 2500 and here is what I did:
40,000 mile F150 long block from salvage yard 700.00
rebuilt using new rings, bearings, rod bolts, freeze plugs
parts -~300.00
machine shop labor - 150
tools (ring expander, ring compressor, valve spring compressor) - 100.00
Typhoon EFI intake - 300 (stangnet classifieds)
Cometic head gaskets - 35.00 (stangnet classifieds)
new billet steel flywheel -75.00
new clutch assy - 180
crank spacer 30.00
AC/PS bracket - 40.00
LOTS of carb cleaner - 50.00
LOTS of shop towels - 50.00
and misc. hoses and lines for hooking everything up and I'm sure I'm missing some other stuff.
if you are interested in my parts break down email me and I'll send you my excel spread sheet of my parts and where they came from.

 

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thompsonsd

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Aug 15, 2002

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Southern Maryland

Nov 10, 2006

#12

• Nov 10, 2006

• #12

Spierce, you done good! Now you have me trying to think what my swap ran...

Anyway, Ty-rone you'll never regret the swap! Just don't try to keep it too mild. The roller block I got was a 94' and heck, it's even taken out .060 over. Once you get it all worked over and installed you'll be in Stang Heaven!

Here's an issue I had though. I used the drop solid motor mounts, and they had my headers hitting my steering column... Solution: Flaming River has a swap piece to give you more clearance. Advice: Change it while the motor is out, much easier!

 

vristang

15 Year Member

Mar 31, 2005

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Seattle

Nov 10, 2006

#13

• Nov 10, 2006

• #13

I can't post it while at work, but I have a decent writeup on the swap on my site (see sig).

I've been happy with the swap.

Good Luck,
jason