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ADVICE REQUIRED - windsor build 

 

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 Post subject: ADVICE REQUIRED - windsor build
Posted: Mon Sep 08, 2008 5:39 am 
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Hi all,

i currently have a small dilema, the plan was to build up a 331 TT windsor, with dart block, afr heads etc. The problem is a mate is selling a powerbond ballancer for use on a 347 stroker, i haven't bought any of the rotating assembly as of yet but now i'm thinking 347 may be a good option...

how are 347's with boost, would a 331 be better as will rev faster, but the 347 would bring extra cubes into the equation. Most of the issue's with the oil ring/gudgeon pin have been sorted i believe, so what are everyone's thoughts on the matter..

331 or 347 with boost

thanks all

 

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Posted: Mon Sep 08, 2008 12:55 pm 
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what is the part number on the balancer?

 

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Posted: Mon Sep 08, 2008 5:52 pm 
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Powerbond race series balancer, part no. pb1060-ss

this may also be suitible for a 331 i assume?

 

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Posted: Mon Sep 08, 2008 6:57 pm 
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You may find the pullies do not line up exactly as the OAL depth of that balancer varies from the EFI item. It is a 28oz externally balanced item which will work with the more basic 331/347 kits. But if you are planning to use an aftermarket block (and assuming a 4340 forged rotating assembly) then you should by the correct (neutral) balancer.

That is providing you don't have an AU...

 

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200kw 5.0L, T5, Koni shocks, King S/Lows, Whiteline swaybars, DBA 4000 rotors, Acron CAI, 80mm Accufab TB, Difillipo headers & cats, twin 2.5" & Aerochambers, 3.91 LSD.

To Come:
Long rod 306, TFS 11R 205cc heads, SHP camshaft, 1.72 R/R, ported TFS Box R, 400hp NX SHO kit...

Last edited by BOTTLEDUP on Mon Sep 08, 2008 7:06 pm, edited 1 time in total.

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Posted: Mon Sep 08, 2008 6:59 pm 
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I wouldnt let a balancer be the deciding factor between chosing a 331 or 347. :shock:

 

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Posted: Mon Sep 08, 2008 7:00 pm 
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ok thanks mate, you just saved me some coin.

very much appreciated.

 

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Posted: Mon Sep 08, 2008 7:01 pm 
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green car wrote:
I wouldnt let a balancer be the deciding factor between chosing a 331 or 347. :shock:


yeh its still a debate i can't decide upon, the 331 is winning though..

 

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Posted: Mon Sep 08, 2008 7:10 pm 
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Why limit yourself to a 4.00" bore? Run the 3.250" stroke crank with a 4.125" piston and you have 347ci without worrying about crank/rod ratios or piston side loads...

 

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To Come:
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Posted: Mon Sep 08, 2008 11:41 pm 
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Mine is 330 and can run all day on 15 Lb if I can get traction.. All the issues with side load etc is NOT really an issue with aftermarket block and assembly..
I just used a 5.0 Romac [SFI] balancer and balanced accordingly to neutral balance.. I don't think there is such a thing as 330 / 347 balanced ?? It's more to do with external balance... The rotating assembly all has to be matched.. The lower the out of balance the better. Especially at high rpm..

 

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Posted: Tue Sep 09, 2008 2:27 am 
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cheers for the replies, now i've got nothing but questions...

i'm starting to get lost in a world of cubes and deciding how many is the winner. i almost have the funds for a dart sportsman block, but i really do need some guidance as to which direction i should take with the bottom end.

and also what combo to go with. i have 58cc AFR185 heads, and was considering using a tried and tested cam such as the Crane 2030 or 2031, and then most probably a rpm2 or trickflow intake manny.

the boost will be coming from 2 x presicion sc61 turbo's which i already have kicking around the shed.

any help would be greatly appreciated, as at the moment there's atleast 10 choices...

 

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Posted: Tue Sep 09, 2008 9:14 pm 
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I was looking at all this not so long ago, but the missus insisted on getting a new car before I spend anymore money on mine. Women!

Anyways, like BOTTLEDUP said, going with the 4.125" bore and a 331 rotating assembly will see 347 cubes and 347 rotating assembly will see 363 cubes.

There's no difference in price between the bore sizes on the dart block, however you may find the 4.125" pistons may be a bit more pricey.

 

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Posted: Tue Sep 09, 2008 11:33 pm 
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ah thanks scaffy, sounds like a good option.

i'm also cosidering due to the fact it doesnt cost much extra, a dart 351 block stroked to a 393 or 408 would be another route to take.

i wouldnt mind some feedback on the dart block with 4.125" bore + 331 stroker kit, has anyone on here used the same set-up? and even opinions would be great..

cheers

 

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Posted: Wed Sep 10, 2008 11:26 am 
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blacksabbath189 wrote:
ah thanks scaffy, sounds like a good option.

i'm also cosidering due to the fact it doesnt cost much extra, a dart 351 block stroked to a 393 or 408 would be another route to take.

i wouldnt mind some feedback on the dart block with 4.125" bore + 331 stroker kit, has anyone on here used the same set-up? and even opinions would be great..

cheers


If you are considering a 393-408 then the same bore considerations are there... Why go 408 when you can have 427? The Dart 9.500" deck block can go to 454ci if you so choose... Seeing as you have 185cc heads personally I'd not go any larger than a 383, also I'd look into what the turbo's are designed to work with. I'm no expert in that regard but I can't see a pair of turbos 'sized' for a 331 working correctly on a 408+ engine.

 

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To Come:
Long rod 306, TFS 11R 205cc heads, SHP camshaft, 1.72 R/R, ported TFS Box R, 400hp NX SHO kit...

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Posted: Wed Sep 10, 2008 5:40 pm 
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yeh it's looking like i'll be sticking to my original plans, but with the 4.125" bore, i'll definately be chatting to you in the near future BOTTLEDUP, about a dart block for me :D

 

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Posted: Wed Sep 10, 2008 7:14 pm 
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No problem mate, you know where to find me.

 

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To Come:
Long rod 306, TFS 11R 205cc heads, SHP camshaft, 1.72 R/R, ported TFS Box R, 400hp NX SHO kit...

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