351m400 displacement after bored - Ford Truck Enthusiasts Forums

Notices

351m400 displacement after bored

 
  #1  
Old 10-24-2011, 01:44 PM
jackdaniels250
jackdaniels250 is offline
Freshman User
Thread Starter
Join Date: Feb 2011
Posts: 37
jackdaniels250 is starting off with a positive reputation.
351m400 displacement after bored

This might be a stupid question but i have a 81 351m and im using a 400 crank and 400 heads. this would be considered a 351m400 stroker motor right? I also plan on boring the block 0.030 or 0.040 not 100% sure on that yet thou. im wondering what the displacment of my engine would be after this is done? thanks guys!!
 
  #2  
Old 10-24-2011, 02:23 PM
85e150six4mtod
85e150six4mtod is offline
Moderator
Join Date: Apr 2004
Posts: 21,499
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
A 351m with a 400 crank and pistons is a 400. That's because the 400 came first, and all Ford did was change the crank and pistons. Everything else is the same, heads too.

Your overbore of .030 will make it a 408.18. The .040 overbore will make it 410.2.

Those differences in displacement are not worth much power, and pale in comparison to the gains that can be made by adding a little compression and a decent cam.

Read the links in your prior thread.

https://www.ford-trucks.com/forums/1...o-a-400-a.html
 
  #3  
Old 10-24-2011, 10:55 PM
crsmiffy
crsmiffy is offline
Elder User
Join Date: Jan 2011
Location: Tanilba bay NSW Australia
Posts: 831
crsmiffy is gaining momentum as a positive member of FTE.
perfectly correct. They don't usually call a 351C a 302 stroker, and it is the same for the 429-460. it usually refers to swapping out non-standard cranks/pistons to achieve a capacity with a different stroke/rod ratio
 
  #4  
Old 10-24-2011, 11:59 PM
wyoming4x4's Avatar
wyoming4x4
wyoming4x4 is offline
Posting Guru
Join Date: Nov 2008
Location: wyoming
Posts: 1,937
wyoming4x4 is gaining momentum as a positive member of FTE.wyoming4x4 is gaining momentum as a positive member of FTE.
automotive calculations.

check out wallace racing automotive calculations. theirs more information on their than you can think of. More than likely you will have more questions than answers. Good site to play with and if any questions drop me a message.
 
  #5  
Old 10-25-2011, 12:26 AM
85e150six4mtod
85e150six4mtod is offline
Moderator
Join Date: Apr 2004
Posts: 21,499
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
"..............call a 351C a 302 stroker........."

FWIW, different block, different heads, different motor. Unless you are talking Australia, in which case there is a 302C which is a destroked 351C...
 
  #6  
Old 10-25-2011, 12:31 AM
crsmiffy
crsmiffy is offline
Elder User
Join Date: Jan 2011
Location: Tanilba bay NSW Australia
Posts: 831
crsmiffy is gaining momentum as a positive member of FTE.
Yup I was Sorry. Obviously didn't see too many of them in the states then so a 302 is always a Windsor. Apologies
 
  #7  
Old 10-25-2011, 01:08 AM
85e150six4mtod
85e150six4mtod is offline
Moderator
Join Date: Apr 2004
Posts: 21,499
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
Originally Posted by crsmiffy View Post
Yup I was Sorry. Obviously didn't see too many of them in the states then so a 302 is always a Windsor. Apologies
Think I owe you one as I didn't notice you are in Australia.....
 
  #8  
Old 10-25-2011, 01:27 PM
jackdaniels250
jackdaniels250 is offline
Freshman User
Thread Starter
Join Date: Feb 2011
Posts: 37
jackdaniels250 is starting off with a positive reputation.
thanks for the replys guys. Think ill go with the 351m block with my 400 crank, TM flat top pistons and stock 400 heads. edelbrock 4bbl intake, 650 holley. does that sound like a good start? Any suggestions for a cam setup?
 
  #9  
Old 10-25-2011, 02:35 PM
85e150six4mtod
85e150six4mtod is offline
Moderator
Join Date: Apr 2004
Posts: 21,499
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
"RV" type cam:

Check the specs here:

Products > Automotive > Camshafts > Fd. 351C-351M-400 V8 70-82 > Hydraulic Flat Tappet

Keep in mind it's cam and springs and whatever else they tell you. No stockers with a new cam.
 
  #10  
Old 10-25-2011, 04:35 PM
crsmiffy
crsmiffy is offline
Elder User
Join Date: Jan 2011
Location: Tanilba bay NSW Australia
Posts: 831
crsmiffy is gaining momentum as a positive member of FTE.
Think I owe you one as I didn't notice you are in Australia.....
LOL no worries. like i always say "dont sweat the petty stuff, pet the sweaty stuff"
AFAIK, windsors were the V8 in the Aussie falcons in the 60's, Clevelands were fitted in the 70's and after a couple of years on none, they fitted the Windsors to them in the 80's, but they went metric by then and were known as the 5.0, so generally a 302 in aussie lingo is a cleveland. This is all pretty general but pretty close give or take a year.
Watch out for too big a cam with standard springs, up close to .500 lift and you get spring bind (From memory, so i'll stand corrected if that is wrong)
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shane_lxi
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
5
11-15-2013 12:05 PM
seventyseven250
Performance & General Engine Building
17
03-05-2006 07:32 PM
CrazyFordMan
Performance & General Engine Building
17
09-05-2003 01:01 AM
skipper
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
4
01-09-2002 12:03 PM
cardude
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
14
12-30-2001 12:55 PM


Thread Tools
Search this Thread
Quick Reply: 351m400 displacement after bored


Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.