I am planning out my future i 6 to 302 swap. I hope to do the swap within the next year. Within the next 2 years, I plan on rebuilding/stroking the engine. I was thinking about a 347, then I read, and even heard about, problems with it. I've read that the 331 is much more reliable, but just as capable.

Main question: Where can I find a good/proven 331 stroker kit? Preferably one with a forged crank and H-beam connectiing rods. Try to have the price stay under $1600, but link to any found. The only kits that seemed noteworthy were teh Scat ones found on Summit and Jegs.

I searched Summit, Jegs, and Google. I found a few sites that seemed a little sketchy so I want something proven.

My goal: Obtain at least 400 RELIABLE rwhp. I would like to do so with natural aspiration, but if I need forced induction that is an option. Either way I am willing to go with more horsepower (Keep in mind:reliable) A link to a 302-specific, carb specific supercharger would be dandy ...

This car ('66 Coupe) will be a daily driver. I am extremely mechanically inclined, but do not wish to rebuild the engine every year.

Is it possibly to get at least 400 rwhp and still get 50-75,000 miles out of the engine?

I *will* have driveline durability taken care of, so no need to focus on that...

 

This is a place to consider: http://www.fordstrokers.com

 

and heres the geeky stuff of how to do it
http://www.mustangandfords.com/techa...troker_engine/

 

what bad things have you heard about 347's which arent an issue for 331's?
just curious

 

any engine built wrong will have problems

 

Would you guys use a roller block? What is the strongest 331 combo. Intake, heads, cam, headers, carb, all the goodies that makes it work. Its for a 65.

 

Just curious why do you feel like you need a stroker, you can make just as much power out of a standard 302...

 

fullauto (a MF member) has great prices on stroker kits and is totally cool. right now he has a few 347 kits for 799.99 with free shipping. probe forged pistons with cast steel cranks and i beam rods - which is plenty for what your shooting for. (cast steel is alot stronger than stock nodular iron).

btw most problems with 347's were oil control related and was due to the wrist pin intersecting the oil ring. this has been revised on all the newer kits and is no longer an issue. that being said, IMO the 331's should spool up quicker and have a higher rpm ceiling

 

I've only heard good things about Coast High Performance. I have also heard that the 331 stroker has fewer problems, but I have not heard anything bad lately about the 347. And easttennmotors is right in saying you can easily get 400+ horse from a 5.0/302?

http://www.coasthigh.com/

 

There is absolutely nothing wrong with 347's, before or after they have went to a short 5.315 rod and 1.175 ch piston. Chevys have had the piston pin in the oil ring since jesus walked the earth, never hear any nonsense about those. Forged crank in stock block = putting all your money in a wet paper bag. Stock blocks will break long before a cast steel crank