347 stroker?
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Old March 16th, 2010, 10:50 AM   #1
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347 stroker?


okay im new to the 5.0's soo i wanna ask how much would it run me to buy a 347 storker built alrdy or bulding it myself whats a rough estimate? and how much power will it make?
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Old March 16th, 2010, 10:57 AM   #2
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FordStrokers.com 331-347-393-408-418-427 stroker kits and ford parts.
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Old March 16th, 2010, 11:32 AM   #3
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most of the power will come from your head and cam setup, u can have a 347 that will make 300hp or 500hp just depends. an easy way to estimate how much power you want is to copy a turnkey setup then you will know at least how much power your lookin at making, check out the specs from this patriot setup if you build something similar you will make around the same hp and tq https://www.patriot-performance.com/...&cat=71&page=1.
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Old March 16th, 2010, 11:41 AM   #4
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hhow many of those options would i need to get... and how muhc would heads be for a 347 ?
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Old March 16th, 2010, 11:47 AM   #5
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i just want a stroker to make around 450 rwhp all motor any reputable site or places that have them alrdy built ready to drop in that are not gonna take a shit on me after couple hundred miles?
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Old March 16th, 2010, 11:55 AM   #6
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heads can run anywhere from 600 to 2k just depends on what you want. honestly run by a machine shop and see what they got to offer. i just got a 347 i spent 2500 on short block, im using stock e7 heads i had sitting around, there gonna port and polish job, bigger valves, and the machined for screw in studs, dual plane intake port match, shorty headers, and a x303 cam with 1.6 roller rockers and with that setup the machine shop said i should be around 340 350 range which is decent considering the e7 head will give me 9to1 compression. and all that and im still under 4k
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Old March 16th, 2010, 11:57 AM   #7
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damn alright cause im looking for the 425+ hp to the wheells and i wouldnt kno what kind of combo to put together.
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Old March 16th, 2010, 11:57 AM   #8
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Originally Posted by SilverGT04 View Post
i just want a stroker to make around 450 rwhp all motor any reputable site or places that have them alrdy built ready to drop in that are not gonna take a shit on me after couple hundred miles?
we have a fully built 347 stroker and are putting out on spray over 600hp
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Old March 16th, 2010, 11:58 AM   #9
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jegs is a good place to buy a turn key engine from, and if you want to make 450 that patriot engine with a bigger cam and carb will give it to you. or u can just bump up compression
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Old March 16th, 2010, 12:31 PM   #10
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on ford strokers.com are all the options that are listed under the 347 storker liberal shortblock needed to complete the motor>?
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Old March 16th, 2010, 02:00 PM   #11
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i have a question that would fall into this catigory. i was thinking of doing this build but would it be better to use an after market block? i heard that fords 302 crack easy after 350 rwhp.
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Old March 16th, 2010, 02:02 PM   #12
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not true, they can hold up to about 600 700, as long as u use a main girdle and valley girdle, anything over that and go aftermarket
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Old March 16th, 2010, 02:19 PM   #13
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Originally Posted by B John View Post
not true, they can hold up to about 600 700, as long as u use a main girdle and valley girdle, anything over that and go aftermarket
SilverGT04 dont listen to this horrible mis information....

This coming from a guy building a 347 with e7 heads. Building junk.Building a turd.

Main girdle and valley girdle will not help.....

Valley girdle...what a waste of money....fools would only buy that. aka B John

Putting 450 to the wheels with an n/a 347 is not hard but its not as easy as you think.

You have not posted your goals beside 450 to the wheels...street car? Race car? Pump gas? Power brakes? etc

When Im all said in done ill be lookin at 575 to the fly..... No x cam e7 head junk.
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Last edited by 93mustank; March 16th, 2010 at 02:38 PM.
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Old March 16th, 2010, 02:36 PM   #14
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thats why u port the e7, after there done ill they will be outflowing afrs out the box. and if you have ever built a real motor you will know for a fact a stock block will hold up to 700 and for someone talking down on stock blocks and main girdles you sure are using them in your setup
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Old March 16th, 2010, 02:40 PM   #15
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Originally Posted by B John View Post
thats why u port the e7, after there done ill they will be outflowing afrs out the box. and if you have ever built a real motor you will know far a fact a stock block will hold up to 700
Im sure thats what the shop told you after you spent 800 on a set of friggin junk e7s

Lol....outflow an afr head....

Real motor is a 347 with a junk x cam, junk e7s and a dual plane intake???....Thats the definition of a turd.


Maybe I need to rethink my 347 build....care to meet up at the track and run?
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Old March 16th, 2010, 02:42 PM   #16
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lol sure im all for it mr arizona but u gotta come to tx to run me
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Old March 16th, 2010, 02:44 PM   #17
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and i have run the 347 with so called crap ported e7s with oversized valves, and no i didnt waste 8bills on them, i had em sittin on a shelf, and x cam and the car did 11.8s all day. not to bad for a budget built engine in my opinion.
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Old March 16th, 2010, 03:32 PM   #18
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check out this link Most hp made with a stock 302 bottom end?? - Yellow Bullet Forums it just shows how many people actually put 600-700hp through a stock block, like i said a stock block can hold it, may not be very long but it is capable of getting there, and with a girdle and valley girdle it will last a bit longer.
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Old March 16th, 2010, 03:48 PM   #19
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im going with mustank on this one, on pretty much everything he said. b john has some horrible information in here, check out fordstorkers.com
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Old March 16th, 2010, 04:30 PM   #20
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I have read about guys making 600-650hp on motors and I have seen a block split at about 280hp.

Lifter valleys weaken the lifter valley. You shouldn't drill holes in an already weak area of your block.

Main girdles keep mains from walking. The webbing from the mains is the origin of split blocks on 5.0's, so they wont help.
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