Fordmods Logo

Fordmods Advertising

400m crank & rods into 351 W 

 

Page 1 of 1 [ 11 posts ] 

 
 Post subject: 400m crank & rods into 351 W
Posted: Wed Mar 25, 2009 1:44 pm 
Oompa Loompa
Offline

Age: 64

Posts: 49

Joined: 1st Jun 2008

Ride: cobra replicar-well soon!

Location: Brisbane
QLD, Australia

Can anyone tell me why I can't or shouldn't consider putting 400m crank & rods in my 351W ?
the 4" crank stroke & rods will give me close enough to 408 on a std bore by my reckoning. :?:

 

_________________

Been bitten by the Snake and it won't let go !!

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Wed Mar 25, 2009 7:09 pm 
Getting Side Ways
Offline

Posts: 2404

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

where u get this idea from???

Im keen to see if its possible

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Wed Mar 25, 2009 11:02 pm 
Getting Side Ways
Offline
User avatar

Age: 61

Posts: 3545

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Check the main journal size?? 351W are 3" mains..
The price of quality rotating parts these days ??
Is it really worth it ??

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Wed Mar 25, 2009 11:37 pm 
Oompa Loompa
Offline

Age: 64

Posts: 49

Joined: 1st Jun 2008

Ride: cobra replicar-well soon!

Location: Brisbane
QLD, Australia

well am reading the Ford high performance parts interchange bible, and the 351w & 400m main & rod sizes are for all intents & purposes the same size-both cr :idea: anks & rods are made outta the same materials and capable to 65-6800 rpm in std form. That said there has got to be enough F series trucks out there with 400m's in 'em to pick one up cheap enough to make my own stroker. Bore the block 0.030' = 408 cu in. :idea:

 

_________________

Been bitten by the Snake and it won't let go !!

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Fri Mar 27, 2009 4:02 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 6363

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

I would leave the block as close as possible to std.....no more than 020". When running high compression, a nice thick bore wall is good.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Fri Mar 27, 2009 4:27 pm 
Tyre Shredder
Offline
User avatar

Age: 36

Posts: 378

Joined: 3rd Dec 2004

Ride: EB V8

Location: Blue Mountains
NSW, Australia

MICKYYYY wrote:
where u get this idea from???

Im keen to see if its possible


This is about as old school as stroking gets. Back in the day, this was the only way to stroke a 351W (with or without offset-grinding for just over or just under 400ci). As above, nowadays is it going to be any cheaper than an off-the-shelf kit which comes complete with crank, rods and pistons?

 

_________________

Production Editor of Performance Motoring at Express Media Group
shollier@expresspublications.com.au
Phone: (02) 9741 3838 (direct line)

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Fri Mar 27, 2009 10:22 pm 
Getting Side Ways
Offline

Posts: 2404

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

cheaper and by how much as well???

once u have figures then u can say ok its worth it or maybe not depending on you hp and rev goals

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Sun Mar 29, 2009 12:13 am 
EFI Guru
Offline

Age: 49

Posts: 4018

Joined: 5th Nov 2004

Gallery: 24 images

Ride: 351 Rangie, '69 390 XR7 Cougar

Location: Perth
WA, Australia

351W and 351M/400C have the same 3" mains.
The 400 crank needs it's counterweights turned down to fit in the crankcase which means mallory metal for balancing which means $$$.
You can't use 400 rods which are 6.58" long because you'll end up with a piston with a comp height of only .92" and besides they use a bigblock pin diameter which will need bushing down to use a small block pin all to fit a piston you can't get.....May as well buy an aftermarket kit instead.
The lowest cost way for more cubes in a 351W is a 392 kit which uses the stock rods and 302 pistons with a 3.85" stroke crank.
Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Tue Mar 31, 2009 5:59 pm 
Oompa Loompa
Offline

Age: 64

Posts: 49

Joined: 1st Jun 2008

Ride: cobra replicar-well soon!

Location: Brisbane
QLD, Australia

Thanks XR9, thats what I needed to know....in fairness it did seem a bit too simple. If it was that easy everyone would be on too it. Thanks
Rog246 8-)

 

_________________

Been bitten by the Snake and it won't let go !!

Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Mon Aug 24, 2009 11:53 pm 
Fordmods Newbie
Offline

Age: 52

Posts: 3

Joined: 24th Aug 2009

Ride: Ford, AUII ute

Location: Airlie Beach
QLD, Australia

That is an old school mod. If memory serves me the original mod had 400 crank with the c/weights machined down, crank snout modified to fit the Windsor pulley/harmonic balancer, chrysler V8 rods ( that's right not a typo ) and chev pistons. I wish I could remember which. The yanks were getting up to 428 cubes with boring and honing. Nowaday with all the clevo gear around it would be easy to surpass the achievements from the '90's. If you are interested let me know how you go cause I haven't seen anyone go that way for sometime. One point I should make, is that such a motor would be a torque monster which seems to be what is required on something like an 'Effie', rather than a fast spinning drag motor.
Top
 Profile  
 
 
 Post subject: Re: 400m crank & rods into 351 W
Posted: Tue Aug 25, 2009 8:17 am 
Oompa Loompa
Offline

Age: 64

Posts: 49

Joined: 1st Jun 2008

Ride: cobra replicar-well soon!

Location: Brisbane
QLD, Australia

thanks for that but have now gone in another direction totally using a Boss 260 :)

 

_________________

Been bitten by the Snake and it won't let go !!

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 11 posts ] 

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Oct 23, 2014 1:57 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names