sirrahnor

I've heard it is a 292 block and a 312 crank I would like to build one for my 56 bird working on getting all the parts together allmost ready to do it. What would be the best combination to the build best motor

67Coug

Well, if you grind the 312 mains down to 292 size so it will fit, and then bore out the cylinders to 3.8" (std 312 size), you will have a 312! This may be a cost effective way to build a 312 as 312 blocks are getting scarce, I hear. There are stroker kits to get around 340 cubes, I believe. Check around on the web for "Y-block performance", etc.

sirrahnor

Thanks for your post and yes they say the 312 block was ground down for the bigger crank and it would be better to grind the crank instead of the block. Would like a dependable but fast car. I have the original motor for the car want to keep as stock as I can. By building a stroker I can put the whole old engine in a box and save it forever. I just wanted to get feedback on if it's a good idea or not, will it be dependable or leave it alone.

Like I said, I bought another motor so I could pack the old one up... but could build the other one another way. I like the idea of a stroker but not much local info on Y-Blocks.

67Coug

Try doing a web search for "Y-block stroker kit". You'll find complete kits and information on what to do to come up with your own.