331 vs 347

stangboy

Founding Member

Aug 31, 1999

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Feb 19, 2009

#41

• Feb 19, 2009

• #41

We all know you can get way more out of a production block than what's recommended. The key is bracing it up correctly. I'm sure if you use a main support and lifter valley braces you will add some much needed strength to it but we all know that regardless of how much you brace it up its gonna have its limits. A Dart block is definately a wise investment hands down. As for 331 or 347...flip a coin. Either one can make serious power with the right combo. Just my $.02

 

nmcgrawj

Advanced Member

Sep 28, 2003

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Feb 20, 2009

#42

• Feb 20, 2009

• #42

stangboy said:

We all know you can get way more out of a production block than what's recommended. The key is bracing it up correctly. I'm sure if you use a main support and lifter valley braces you will add some much needed strength to it but we all know that regardless of how much you brace it up its gonna have its limits. A Dart block is definately a wise investment hands down. As for 331 or 347...flip a coin. Either one can make serious power with the right combo. Just my $.02

Click to expand...

Thats funny, it was my understanding that those extra braces just hold the scrap together after it blows. I dont have any personal experience with it though. I just know i have read on multiple forums that they dont add strength, rather just minimize the mess.


A lot of guys have put a ton of power through stock 302s. Problem is that its like a ticking time bomb. I'd hate to put some pretty heads on top of a stock 302 block and having it blow

 

nunly94gt

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Feb 3, 2002

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#43

• Feb 20, 2009

• #43

Where is the best place to buy your rotating assembly for a stroker?

 

bubba-dough

Active Member

Dec 28, 2004

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Feb 20, 2009

#44

• Feb 20, 2009

• #44

I bought mine from CHP Coast High Performance - YOUR SOURCE FOR PURE HORSEPOWER & PERFORMANCE!

And to add my 2 cents in on the main girdles, I went that route after it was recommended by my builder. Whats a couple hundred more dollars. If it helps strengthens it up a bit, great. If not, it may help salvage parts.

 

Killercanary

The car that set the bar.

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Nov 29, 1999

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Feb 20, 2009

#45

• Feb 20, 2009

• #45

Please do not even begin to bring the lies about the lifter valley brace here to this part of stangnet. It is widely known that its a piece of garbage and was nothing more than a smart marketing ploy. You want a lifter girdle... you have one, its called your lower intake. Its held more securely that that stupid lifter valley support. PLEASE don't buy into that hype, I hope you all are smarter than that.

 

stangboy

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Aug 31, 1999

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Feb 20, 2009

#46

• Feb 20, 2009

• #46

WOOOOW!!!! I had no idea people felt that way about the lifter valley brace/girdle...whatever you wanna call it. I don't have any experience with them but I always thought it was pretty logical what they were meant to do. I stand corrected. Well, does a main support work? Sorry guys, since I lost my car to Hurricane Katrina I've kinda been out of the loop, so I'm not as informed as I used to be. Thanks for the correction, Paul!

 

nunly94gt

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Feb 3, 2002

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Feb 20, 2009

#47

• Feb 20, 2009

• #47

Paul has become angered since I left. I know you had seperation problems but its ok, Im back!

 

nmcgrawj

Advanced Member

Sep 28, 2003

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Feb 21, 2009

#48

• Feb 21, 2009

• #48

nunly94gt said:

Paul has become angered since I left. I know you had seperation problems but its ok, Im back!

Click to expand...

lol


He did sorta surprise me how aggressive he came out in that post. Usually he's laid back...:Zip2: when it comes to girdles from now on!:Zip2:

 

Venom351R

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Apr 27, 2002

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Feb 21, 2009

#49

• Feb 21, 2009

• #49

My 95 GT had a 302 and my 94 Cobra has a 351. If I had a choice between either Id take the 351 hands down. Im also in the process of pricing out the cost of a 351 shortblock stroked to a 408 w/ my current H/C/I and porting the 185's for a project starting next year. Even with already having the H/C/I its still going to be an expensive project but I think when its all done and in the car and tuned I'll have a Mustang the way Ive wanted one for quite a long time. Its hard to beat additional cubit inch's, it has its initial down falls but over all I would still take a 351 over a 302/347