i was on ebay ealrier and saw a 351w with a 400 crank, chrysler 340 rods and ross pistons.

my question is. is this even possible? it kinda seemed odd to me... and, how reliable would it be?

 

heres the link
http://cgi.ebay.com/ebaymotors/Ford-...spagenameZWDVW

 

I'm running 5.7" Chevy rods in my 302, with Mahle pistons designed for stroker 350 Chevys, so it's entirely possible.

 

would you need a specially designed piston or something? he acts like its just a 'normal' piston

 

The piston/rod/crank combojust has to "fit" the bore and stroke.A 4" bore is common to most SBC & most SBF.

The "deck height" of the block must = Stroke + Connecting Rod Length + Piston Compression height. (usuallyminus about .001 or so..)

Stroke and rod length are self explanatory, piston compression height is the height of the piston over the wrist pin.

If a connecting rod is the right length for the combo, and it is machined to properly fit the crank journal and the wrist pin, the rod can work regardless of the brand or the original application it was designed for.

Short answer is that depending on the above mentioned "engine math", the piston could be "stock" or at least manufactured for a Ford application.

 

huh, interesting.. what would one use for the harmonic balancer, bearings (assuming the same ones you use for a 351 crank)

so, the 351w has a 9.2in? deck height, so as long as the stroke and rod length and piston height equals the same or less, they can be used?
and the 400 crank, thats from the 400m motor right? would it actually bolt up?

sorry about the noob questions, not ive gotten into something like this.. a lot cheaper than a complete stroker kit... lol

 

how do you measure that, or tell from catalogs? my summit catalog says nothing about this...

 

Pull them uponSummit online, you can usually filter by compression height, and the compression height is usually listed somewhere.

I have serious doubts that a person could build a comparable stroker cheaper than by using the kits availablethese days.

I think that an "M" crank can be used if the journals are turned down to "W" dimensions (3" mains)....

 

well, if oyu can get the crank for like +-100 and the rods for like +-300 and the pistons for around 3-400. thats around 800. and machining if needed (the crank, or anything else, is there enything else needed to be machined?)

does the stroke+rod length+ piston compression height have to equal EXACTLY the deck height?

 

It can be, and really is supposed to be a little less than deck height, but not more....