Ford Truck Enthusiasts Forums

Notices

390 pistons?

Thread Tools
 
Search this Thread
 
Old Nov 7, 2012 | 09:00 AM
Share
  #1  
cws10190's Avatar
cws10190
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 131
Likes: 0
390 pistons?
i have a number on the pistons of my 390 they r l2245 pistons i have looked for them but cant find anything for 390 l2245 pistons
 
Reply
0
Old Nov 7, 2012 | 02:13 PM
Share
  #2  
85e150's Avatar
85e150
Super Moderator
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Apr 2004
Posts: 34,475
Likes: 2,800
Club FTE Gold Member
Those are pistons out of your motor? Are they going back in?

Any other markings? Flat, dome or dish? Compression height?
 
Reply
0
Old Nov 7, 2012 | 04:01 PM
Share
  #3  
cws10190's Avatar
cws10190
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 131
Likes: 0
yes those are in my motor no other marking beside std. i plan on leaving them in. unless i decide otherwise. believe they r 2 relief dish pistons. dont know compression tho
 
Reply
0
Old Nov 7, 2012 | 09:43 PM
Share
  #4  
vwfreak's Avatar
vwfreak
More Turbo
Joined: Jun 2012
Posts: 540
Likes: 1
Pictures??

I just picked up a 390 and am looking forward to getting inside and seeing how different it is from my '67....
 
Reply
0
Old Nov 7, 2012 | 11:11 PM
Share
  #5  
85e150's Avatar
85e150
Super Moderator
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Apr 2004
Posts: 34,475
Likes: 2,800
Club FTE Gold Member
L2245 comes up as a 428 piston. Check that bore!!!

332-428 Ford FE Engine Forum: TRW L 2245 Forged Pistons

https://www.ford-trucks.com/forums/1...e-pistons.html

https://www.ford-trucks.com/forums/2...endations.html

4.13 vs 4.05 bore. A little over 4 or a little over 4 1/8th via the tape measure method....
 
Reply
0
Old Nov 9, 2012 | 05:49 PM
Share
  #6  
cws10190's Avatar
cws10190
Thread Starter
|
Senior User
Joined: Apr 2012
Posts: 131
Likes: 0
came out to be 4.111 bore give or take 2
 
Reply
0
Old Nov 9, 2012 | 07:17 PM
Share
  #7  
MIKES 68 F100's Avatar
MIKES 68 F100
Logistics Pro
10 Year Member
Joined: Jan 2011
Posts: 4,762
Likes: 54
From: Antelope Valley ,CA
sounds like you won the 428 lotto .. SCORE!!!!
 
Reply
0

Trending Topics

Old Dec 9, 2012 | 05:13 PM
Share
  #8  
nobearsyet's Avatar
nobearsyet
Tuned
Joined: Nov 2010
Posts: 256
Likes: 0
From: amarillo TX
Dude you're lucky.
 
Reply
0
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Sep 9, 2014 | 10:22 AM
Share
  #9  
jrods2's Avatar
jrods2
Freshman User
Joined: Aug 2014
Posts: 37
Likes: 0
piston bore
Originally Posted by cws10190
came out to be 4.111 bore give or take 2
you have a 390 bored .060 over, 428 std bore is 4.135. I've seen so much false info about the 390 that it's mind boggling. The only way to tell what you have is to dismantle it and check numbers. most of the tags that were attached to the original carb stud have been lost & thrown away. no exceptions.
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pistons for 390
cws10190
1973 - 1979 F-100 & Larger F-Series Trucks
1
Nov 7, 2012 09:36 AM
390 Pistons
79f100six
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
2
Feb 27, 2010 01:53 AM
Pistons .030 390 KB150??
MaximumMax001
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
1
Jul 18, 2004 03:32 PM
Replacing 390 pistons
Brad Deicke
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
10
Aug 21, 2002 05:08 PM
Back to Subforum
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
View Next Unread
Check out my new 390!!!




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 02:38 PM.

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