Notices

434 stroker:Rod length

Thread Tools
 
Search this Thread
 
Old Feb 19, 2008 | 09:48 PM
  #1  
Kionga's Avatar
Kionga
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 77
Likes: 0
434 stroker:Rod length

I need to know the rod length for the 434 stroker motor. Does anyone have the actual length?
Much appreciated.
Craig
 
Reply
Old Feb 20, 2008 | 07:52 PM
  #2  
danlee's Avatar
danlee
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
The rod length in a 434 is 6.658 inches. I think that it's a 5.4 L Modular rod.
 
Reply
Old Feb 20, 2008 | 08:21 PM
  #3  
Kionga's Avatar
Kionga
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 77
Likes: 0
Thanks Dan Lee. Much appreciated.
Craig
 
Reply
Old Mar 5, 2008 | 03:40 PM
  #4  
job1bf's Avatar
job1bf
Mountain Pass
Joined: Dec 2001
Posts: 141
Likes: 0
From: collierville, tn
how far can you go?

correct my flawed logic...

460 has a deck of 10.3 - 400 has a deck of 10.3 - rod lengths are similar.

4.5 in. stroke cranks are readily available for 460's with a 6.7 rod

my flawed logic is that since the decks are similar there should be room for a 4.5 stroke crank in the 400...? A 4.250 fits not problem...so how far can we go before we run out of room?
 
Reply
Old Mar 5, 2008 | 06:34 PM
  #5  
danlee's Avatar
danlee
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
I have heard of 400s stroked to 492 cubic inches. That must be +0.60 bore and 4.75" stroke.
 
Reply
Old Mar 5, 2008 | 10:21 PM
  #6  
hollenjoe's Avatar
hollenjoe
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
But can they be bored to 60?, i thought it was only safe to do it to 40 due to cylinder wall thickness....
 
Reply
Old Mar 6, 2008 | 12:40 AM
  #7  
Colo79Ford's Avatar
Colo79Ford
Elder User
Joined: Jan 2004
Posts: 887
Likes: 0
From: Colorado
Originally Posted by hollenjoe
But can they be bored to 60?, i thought it was only safe to do it to 40 due to cylinder wall thickness....
My 400 is .060 over. No problems with it.
 
Reply
Old Mar 6, 2008 | 04:56 AM
  #8  
danlee's Avatar
danlee
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Originally Posted by hollenjoe
But can they be bored to 60?, i thought it was only safe to do it to 40 due to cylinder wall thickness....
The 351Cs had thinner walls than the 351M/400 blocks. They couldn't be bored +0.060. It is a good idea to sonic test the walls on a 351M/400, before boring +0.060.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Mar 6, 2008 | 07:47 AM
  #9  
job1bf's Avatar
job1bf
Mountain Pass
Joined: Dec 2001
Posts: 141
Likes: 0
From: collierville, tn
that is good news

so 4.5 is no problem...agreed? Room for more...even better.

Do the 4.5 is quite doable...with BBF or BBC rods in 6.7 or 6.8 lengths...parts should not be a problem.

with CHI heads and the new 400 intake...this would a potent combo. Who is up for a 460C?
 
Reply
Old Mar 6, 2008 | 09:45 AM
  #10  
hollenjoe's Avatar
hollenjoe
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
Originally Posted by Colo79Ford
My 400 is .060 over. No problems with it.
Nice so you have a 414, if i only knew earlier i would´ve bored it to 60 and not to 30 ....
 
Reply
Old Mar 6, 2008 | 01:34 PM
  #11  
Colo79Ford's Avatar
Colo79Ford
Elder User
Joined: Jan 2004
Posts: 887
Likes: 0
From: Colorado
Originally Posted by hollenjoe
Nice so you have a 414, if i only knew earlier i would´ve bored it to 60 and not to 30 ....
Taking yours .030 over was a good call. Finding pistons for an .060 over was a PITA. Also i have no more rebuilds left out of my block, when it goes, i have to find a completely new engine, block, etc.... You should still have another rebuild out of yours.
 
Reply
Old Mar 6, 2008 | 06:52 PM
  #12  
danlee's Avatar
danlee
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Originally Posted by job1bf
so 4.5 is no problem...agreed? Room for more...even better.

Do the 4.5 is quite doable...with BBF or BBC rods in 6.7 or 6.8 lengths...parts should not be a problem.

with CHI heads and the new 400 intake...this would a potent combo. Who is up for a 460C?

It may be doable, but I would look into the 'no problem'. There is more to it than selecting cranks, rods, and pistons.

BTW, a 434 could be a 440 with a +0.060" bore.
 
Reply




All times are GMT -5. The time now is 10:26 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE