any 347 guys?

[Stangbangin]

i wouldnt be scared to build a stroker in a stock block again.

you just gotta know how keep the block safe: good tune good balance job and wath your revs. hell i was talking to a guy today that spins his stock block up to 8k all day long

I dunno about watching revs....I want a motor I can THRASH......like say if I'm just at the track or eacing some douche bag on the HW I wanna be able to wind it out and not worry. But if you on a budget like me fuck it and do it anyways,,

 

[Eric_94cobra]

my 331 is on a stock block, custom built with a race girdle for the weakness. So far, so good, right at the 500 mark at 6000 rpm, but professionally built with all forged internals. I was advised that unless I pushed it any further, a stouter block wasn't needed. I don't need more power, just traction. Eagle crank, rods, ross pistons.

 

[Paul]

This is one of ultra-rare times when I disagree with Ryclef. I believe all the rod angle stuff is a bunch of hype. There are several production motors with the same or worse rod/stroke ratios than a 347. If you have a good tune and keep RPMs within reasonable parameters, I believe a 347 will live every minute as long as a 331 in those same parameters.

Paul.

 

[LAFENATU]

All I know is anytime I have a question I go to Ed.

He has always been willing to answer any question I had and always helped me out.

He has never sent me in the wrong direction.

He is the first person I ask, because he has been there and done that. He is well known for a reason.

 

[Ed Curtis]

I would NEVER put a stroker in a stock block ever again....the cubic inches gained can easily be made up with more head flow, boost, nitrous, cam, and/or intake in a 306. Its a general rule that 500hp is the limit of a stock block...yes you can push it past that but you're gambling. Noone can disagree with that. I'm spraying mine to 550hp...I know I'm gambling. I don't care.

Now, NOT EVEN GOD a.k.a. ED CURTIS, JAY ALLEN, or mother ******* SANTA CLAUS can tell me that a 331-347 doesn't side load a block more than a 302-306. I NEVER said that stroker motors were a LEADING cause of splitting blocks but they've been contributing factors to splitting blocks. Its physics people.

Since you're such an engine building expert, (being a "global moderator" and such) please care to elaborate where a 3.400 crankshaft in a stock block has more impact than your blower, nitrous or high RPM 306 combination. Please feel free to do the calculations in depth. I'm a retired mechanical engineer so I doubt the data would be over my head.

I'm also very curious what your background in engine development is? Do you currently work for Dart, World or Ford? Have you actually raced competitively? Are you a former NMRA Champion or even an NHRA or NMRA record holder? I'm very interested in your life's experience in engine dynamics and the properties of block strength. Are you a Ford engineer who did destructive testing of block? Have you even built a race prepped engine? You are quick to pass judgment so I would like see where you are drawing your conclusions and your vast experience.

The owner of this site should take note. Sure seems like your role as a moderator is being abused as you toss out BS insults towards me. I would like to know who the fk you are so I can address your obvious internet talents. After all, as Robin Lawrence and I always say, everyone is a hero and tough guy when they can hide behind a screen name.

Ed

 

[Nacho]

register and go into this thread, big rod to stroke ratio thread

http://sbftech.com/index.php/topic,10458.0.html

 

[Stangbangin]

I would NEVER put a stroker in a stock block ever again....the cubic inches gained can easily be made up with more head flow, boost, nitrous, cam, and/or intake in a 306. Its a general rule that 500hp is the limit of a stock block...yes you can push it past that but you're gambling. Noone can disagree with that. I'm spraying mine to 550hp...I know I'm gambling. I don't care.

Now, NOT EVEN GOD a.k.a. ED CURTIS, JAY ALLEN, or mother ******* SANTA CLAUS can tell me that a 331-347 doesn't side load a block more than a 302-306. I NEVER said that stroker motors were a LEADING cause of splitting blocks but they've been contributing factors to splitting blocks. Its physics people.

Since you're such an engine building expert, (being a "global moderator" and such) please care to elaborate where a 3.400 crankshaft in a stock block has more impact than your blower, nitrous or high RPM 306 combination. Please feel free to do the calculations in depth. I'm a retired mechanical engineer so I doubt the data would be over my head.

I'm also very curious what your background in engine development is? Do you currently work for Dart, World or Ford? Have you actually raced competitively? Are you a former NMRA Champion or even an NHRA or NMRA record holder? I'm very interested in your life's experience in engine dynamics and the properties of block strength. Are you a Ford engineer who did destructive testing of block? Have you even built a race prepped engine? You are quick to pass judgment so I would like see where you are drawing your conclusions and your vast experience.

The owner of this site should take note. Sure seems like your role as a moderator is being abused as you toss out BS insults towards me. I would like to know who the fk you are so I can address your obvious internet talents. After all, as Robin Lawrence and I always say, everyone is a hero and tough guy when they can hide behind a screen name.

Ed

oh wow hey Mr Curtis...I'm a fan....can I have your autograph??

 

[ryclef331]

I would NEVER put a stroker in a stock block ever again....the cubic inches gained can easily be made up with more head flow, boost, nitrous, cam, and/or intake in a 306. Its a general rule that 500hp is the limit of a stock block...yes you can push it past that but you're gambling. Noone can disagree with that. I'm spraying mine to 550hp...I know I'm gambling. I don't care.

Now, NOT EVEN GOD a.k.a. ED CURTIS, JAY ALLEN, or mother ******* SANTA CLAUS can tell me that a 331-347 doesn't side load a block more than a 302-306. I NEVER said that stroker motors were a LEADING cause of splitting blocks but they've been contributing factors to splitting blocks. Its physics people.

Since you're such an engine building expert, (being a "global moderator" and such) please care to elaborate where a 3.400 crankshaft in a stock block has more impact than your blower, nitrous or high RPM 306 combination. Please feel free to do the calculations in depth. I'm a retired mechanical engineer so I doubt the data would be over my head.

I'm also very curious what your background in engine development is? Do you currently work for Dart, World or Ford? Have you actually raced competitively? Are you a former NMRA Champion or even an NHRA or NMRA record holder? I'm very interested in your life's experience in engine dynamics and the properties of block strength. Are you a Ford engineer who did destructive testing of block? Have you even built a race prepped engine? You are quick to pass judgment so I would like see where you are drawing your conclusions and your vast experience.

The owner of this site should take note. Sure seems like your role as a moderator is being abused as you toss out BS insults towards me. I would like to know who the fk you are so I can address your obvious internet talents. After all, as Robin Lawrence and I always say, everyone is a hero and tough guy when they can hide behind a screen name.

Ed

Ed,

First off, I never ONCE said you were wrong. I never ONCE threw ONE SINGLE INSULT towards you, your name, or your company. In no way did I question your credibility or vast knowledge. EVER...read the the ENTIRE THREAD ABOVE then show me where I bashed you please. Because I put you, jay allen, and santa claus in the same sentence? Hardly. Please let the site owner come in and look at this thread. I deleted nothing. I'm not here to have a name dropping contest with anyone and I'm not running to my engine builder or cam grinder b/c of what someone on the internet said. I have better things to do with my time as do they.

My statement was one point and one only. I believe that a 347 puts more strain on an already shitty block that a 331 does. THATS IT and THATS ALL. No, my credential list isn't nearly as vast as yours...doesn't have to be to have a SIMPLE UNDERSTANDING of the physics of a motor. I did use the words "major cause of splitting." Perhaps I should have reworded it. Never said it was harder on the block than any power adder either. The biggest thing I try to drive home is to not even bother with stroking a stock motor. You may disagree. Fine. Had I known then what I know now, I never would have wasted my money by pouring it into a 5.0L Roller block but my goals for a car may be completely different than everyone elses.

Now, if you'll exscuse me, I have to go polish my NMRA Trophies, build a few race prepped engines (I'm a "global moderator...I have an image to up hold!), and then I have a meeting with World Products for this new block we're developing...its nothing really. (sarcasm off)

Seriously, Mr. Curtis, please read the entire thread.
I never ONCE insulted your name so please don't get that twisted at all.

Have a good one,

Ry