351w svo block

[Ang3lgarcia]

Hey guys wanting to know if any one has any info on this svo block. I have a full rotating assembly for a 351w with c mains to make a 408. This block is going for 1k. Says it's all stock bore. I read something about some of these being dry sump, that would steer me away if so. My pistons are 30 over.
What's the max horsepower limit on these ? Would I just be better off getting a boss block ? I like to run 10s. Thanks in advance.

 

[Mustang5L5]

I think i have this in a couple of older Ford Motorsport parts catalogs. I'll see if i can pull up the listing later.

Not seeing anything about dry sump for it, and seem to see conflicting into as to max HP. I have seen 800ish HP quoted a bit.

Let me see if i can dig up the actual Ford Motorsport catalog page.

 

[Mustang5L5]

Only page I have with the SVO 351. Not sure which it would be. This is 1987 so it’s possible it’s not listed

 

[Ang3lgarcia]

Thank you man ! I appreciate it
I cant find anything online. The guy doesn't know if it's 9.5 or 9.2 My intake is for a 9.5 deck. I see that two of them only go .030 over. Meaning my pistons would max the bore out if it's the same.

 

[WhiteCobra95]

Reading those bullet points, does that mean it needs a special SVO crankshaft with the smaller journals? ...or just a 351C crankshaft? It's been a LONG time since I've looked at 351C specs, but I vaguely remember them having the same bore spacing.

 

[Mustang5L5]

I'm not sure i would read into that page too much just yet. I'm not 100% sure any of those engines listed apply. I'm still doing some digging in my spare time.

 

[General karthief]

Reading those bullet points, does that mean it needs a special SVO crankshaft with the smaller journals? ...or just a 351C crankshaft? It's been a LONG time since I've looked at 351C specs, but I vaguely remember them having the same bore spacing.

that's a Windsor block right?

 

[96pushrod]

The G351 can be made into wet sump, but they didn’t come that way initially.

Those blocks can be pushed into 4 digit hp levels and survive.

A newer style block would be a better investment, unless the G block is cheap

 

[Ang3lgarcia]

The G351 can be made into wet sump, but they didn’t come that way initially.

Those blocks can be pushed into 4 digit hp levels and survive.

A newer style block would be a better investment, unless the G block is cheap

I got him down to 1k. Wondering if it's worth it or not ? What does it take to make it a wet sump?

 

[96pushrod]

I got him down to 1k. Wondering if it's worth it or not ? What does it take to make it a wet sump?

You gotta also remember that it’s a 9.2 deck height block, and the intake situation can be tricky as there aren’t a lot of 9.2 intakes floating around anymore. I’d honestly recommend you get a newer boss block, or a dart block if looking to make big power. Only way I’d recommend going with the G block is if I came with an intake or you already had one.

 

[Ang3lgarcia]

Yeah definitely going with a G block my holley intake is for a 9.5 and everything else is as well

 

[96pushrod]

Yeah definitely going with a G block my holley intake is for a 9.5 and everything else is as well

But isn’t the G351 a 9.2 deck block? If you don’t know, measure before you buy it.

 

[393 Boss]

from what i see its a 9.2 deck solid rail wet sump block, with its iron caps, it should be good for 700-750hp & if the caps are upgraded to 4 bolt steel it should be good for 1200hp

some don't know the original/grandfather to todays svo blocks were the 1966-69 9.2" 351w XE 93532 iron & alum race blocks...

also forgot to mention Ford SVO had plans for 8.7" & 9.7" deck svo blocks, but they did not catch on with the public at that time.

 

[AeroCoupe]

https://www.corral.net/threads/9-2-deck-svo-g351-r-block.1340061/

Max overbore is 0.060" without having the block sonically checked. Have seen them sleeved on all 8 cylinders. Will say that for $1,000 I would pass and just get a Dart.