Progress Thread 351w build and swap

[James K]

I blacked out last night and woke up with this 351 block in the bed of my truck. I’ve always wanted to build an engine. Not sure if it’s getting stroked or not.

I have a 1989 mustang I’ll probably be pulling it in.

End goal is to have my car quicker than a brand new mustang gt. I only drive it on weekends and I’m thinking to ditch the EFI

 

[General karthief]

Plan on about 500 hp if you want to 'out run' a new mustang
Do you have a budget?

 

[Steel1]

500 hp is pretty easily attainable with a stroked 351w build.
Like karthief said...budget ?

 

[a91what]

why no EFI I loves me some EFI...

BTW I too went the 351 stroker... welcome to the darkside..

393w

 

[James K]

Hummm budget. How fast do we want to spend? I think I need to spend money in places I’m not interested in coming back to. Like the bottom end.

But no real budget. It’s probably going to be on the stand for over a year so ill just buy as we go. Going to be going to swap meets looking for parts too.

 

[James K]

@a91what what did you stroke it to and how far over was the bore?

 

[a91what]

its a 393 bored to 4.03... I purchased an neutral balanced assembly with a 6.2 rod, this is ideal for rod to stroke ratio. the kit came balanced from scat.

 

[James K]

So because it was balanced, you just assemble it and need a zero balance fly wheel, correct?

 

[CarMichael Angelo]

I blacked out last night and woke up with this 351 block in the bed of my truck. I’ve always wanted to build an engine. Not sure if it’s getting stroked or not.

I have a 1989 mustang I’ll probably be pulling it in.

End goal is to have my car quicker than a brand new mustang gt. I only drive it on weekends and I’m thinking to ditch the EFI

If you ditch the efi,..make plans for the stoning that you'll get from the efi purists of the world here. For me nowadays, there'd be no way I'd plan to use a carburetor over fuel injection, especially considering the stuff I do. However,...if I was on a budget, didn't have a whole bunch of experience working on engines, and wanted to make things easier on myself....there'd be a carburetor in my future.

 

[a91what]

So because it was balanced, you just assemble it and need a zero balance fly wheel, correct?

you are correct

 

[Decipha]

Its not easy to get 500rwhp out of a sbf with out a power adder and it wouldn't be anywhere near as refined as your competition.

better start writing some blank checks

 

[James K]

Really? Is this true? I’ve been reading that you can get 500hp with a stock bottom end. Using the correct heads and cam. So I wouldn’t see an issue with 500hp if you stroke it and build the top end.

And throw a dollar amount to these “ blank checks”

 

[General karthief]

Just because you can does not mean you should.
you have to figure in longevity, reliability.

 

[James K]

After more research I decided to sell that 351 block. I kept an eye out and found a complete 1994 351w. Planning to tear it down and rebuild the bottom end.

 

[Steel1]

Just a heads up, check that block over good.
When I built my 393w I was reading about issues with 351w F4TE roller blocks having cracking in the cam journals.

Must Read....PSA for Windsor Roller block guys

There is a cracking problem that is becoming an epidemic, and its only among the 351 roller blocks, the F4TE. We are averaging 2-3 cracked blocks for every 10 we get in. The crack is in the same spot every single time. The cracks are noticed easily by eye when you remove the number 2 and...

www.corral.net

 

[James K]

Yikes. Thanks for the heads up. I’ll definitely look the block over when I get it apart. I don’t plan on running tons of power through it but plans change sometimes.