Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

351M questions

Thread Tools
 
Search this Thread
 
Old Mar 31, 2000 | 06:28 AM
  #1  
77_F150_4x4's Avatar
77_F150_4x4
Thread Starter
|
Elder User
25 Year Member
Joined: Feb 2000
Posts: 775
Likes: 0
From: Temperance,MI
351M questions

1 What is the differance with the 351M and 400 crank I know the 400 is bigger but someone said the 351M is a softer metal than the 400 is that true?
2 who makes valves for the 351C 2V heads Summit and Jegs dont sell them.
3 should i stay with the 351C 2V heads or get some 351C 4V heads what is the hp and tq gains with the 4Vs?
4 Has anyone ever heard of D.U.I(Davis Unified Ignition) distributors it looks just like the chevy distributor the ad for it says
one wire hook up
includes 50,000 volt coil
no spark box
water mud and vibration proof
and a lot more

Curtis
 
Reply
Old Mar 31, 2000 | 08:15 AM
  #2  
Nitro's Avatar
Nitro
Senior User
25 Year Member
Joined: Nov 1999
Posts: 179
Likes: 0
351M questions

The 351M crank has 1/2" less stroke than the 400. The 351 has a 3.5" stroke and the 400 has a 4". You can get heads that are called Aussie cleveland 2V heads that are said to work good but I dont know where to get them. Dont go with the 4V heads because they are good for power but they are made for about 4500 RPM and above so they are out of the question for a 351M and street use or even some mudding.

Nitro
 
Reply
Old Apr 2, 2000 | 01:46 PM
  #3  
FORDTRUCKMAN1976's Avatar
FORDTRUCKMAN1976
Senior User
25 Year Member
Joined: Sep 1999
Posts: 103
Likes: 0
351M questions

 
Reply
Old Apr 3, 2000 | 04:24 PM
  #4  
67CAT's Avatar
67CAT
Freshman User
25 Year Member
Joined: Jan 2000
Posts: 35
Likes: 0
351M questions

The two blocks are the same in every way. The pistons are also different, it is the height that is different.
 
Reply
Old Apr 3, 2000 | 10:14 PM
  #5  
jarhed420's Avatar
jarhed420
New User
25 Year Member
Joined: Apr 2000
Posts: 12
Likes: 0
351M questions

Don't go with the D.U.I, Get a Mallory Unilite distributor and a MSD 6-AL ignition unit.

 
Reply
Old Apr 7, 2000 | 01:34 PM
  #6  
wnelson's Avatar
wnelson
Senior User
25 Year Member
Joined: Jan 2000
Posts: 174
Likes: 0
351M questions

Try Performance Automotive Wharehouse for parts. 818-678-3000
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
77_F150_4x4
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
5
Aug 5, 2012 12:58 AM
tastyklair
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
3
Jul 28, 2004 12:46 PM
77_F150_4x4
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
7
Jun 15, 2001 07:22 PM
77_F150_4x4
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
2
Aug 20, 2000 10:11 PM




All times are GMT -5. The time now is 11:34 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE