Alright all, I know that you can pretty easily install a 351W based engine into a fox body mustang and I plan on doing it in the next year or so but  I have one question.  Does anyone know of any issues with the 427 stroker kits out there?  I plan on picking up an old 351 and doing the build myself over the course of a year or two but dont want to get myself into a situation where I have stretched the limits of the block too far with a 4.170" stroke crank.  To be honest I really have been looking at the 427 over say a 408 because of the vanity of it really.  I look forward to having a 427 badge on my 5.0!

Thanks all,

Critter

There shouldn't be any problems putting a 351 block into a 88 stang.  For the swap your going to need a oil pan, swap headers, and engine mounts.  Also you might want to check engine/hood clearance depending on the intake your using.

PS: if this is your first engine that your going to build, take your time and don't take short cuts.  Torque, lube and seal everything appropriately.  And if you have questions or doubts, ALWAYS..ALWAYS ask before you do.

I understand the information you have given me, but my question is not about what it will take to put a 351W into a Fox body car, but rather if anyone has had any experience with the 427 stroker kit.  Many of the 347 kits out there have a piston pin that protrudes into the the oil control ring area, and I was wondering if this is the case with the 427 kit as the stroke is really radically long.

Critter

There's two different ways to build a 427.  A 4.030 bore and loooong stroke or a 4.125 bore and 4.000 stroke.  I would suggest the bigger bore only if you have an aftermarket block so the longer stroke would be better if using a stock style block.  The bigger bore in a stock block might have cooling issues and the longer stroke might pull the pistons too far down in the bores.  I think that would be the concern over the piston pin location, which is a concern of itself.  The longer stroke could result in faster cylinder wall/ring wear and cause it to start using oil.   

It all depends on how the engine is built.  I know plenty of people that run 347's that don't burn any oil, it all depends on the engine builder and how the engine is built.   

Thanks for the input guys.  I plan on using a stock block with the longer stroke and the .030 over bore to reach my CID goal, so i will probably keep the max rpm under 6000 to help with all that centrifugal force from the longer stroke crank.

Critter