Trw pistons in a stock block - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 04-28-2013, 11:33 AM   #1
Registered Member
Regular
 
Dustin541's Avatar
 
Join Date: May 2012
Region: Oregon
Posts: 36
Trw pistons in a stock block

So I recently did a motor swap in my gt since my compression was getting super low around 75psi average per cylinder and I noticed that the pistons said trw on the bottom but had a ford emblem stamped beneath it just wondering if they came that way factory? Also realized that my heads were polished possibly ported made 250hp to the wheels 3 days before I pulled the motor out
Dustin541 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-30-2013, 09:19 AM   #2
Registered Member
Regular
 
86 muscle's Avatar
 
Join Date: Oct 2011
Region: Texas
Posts: 264
Yes they did. I think 89 to 92 came with forged pistons.
86 muscle is offline   Reply With Quote
Old 05-01-2013, 09:54 PM   #3
Registered Member
Regular
 
Dustin541's Avatar
 
Join Date: May 2012
Region: Oregon
Posts: 36
My car is an 88 bought it mass air converted maybe they did a full motor swap
Dustin541 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-01-2013, 09:56 PM   #4
Registered Member
Regular
 
86 muscle's Avatar
 
Join Date: Oct 2011
Region: Texas
Posts: 264
It's possible. I also could be wrong on the years.
86 muscle is offline   Reply With Quote
Old 05-01-2013, 11:35 PM   #5
Registered Member
Regular
 
aegischief's Avatar
 
Join Date: Apr 2011
Region: North Carolina
Posts: 492
Ford started putting forged pistons in 85 (4bbl carb only) and 86 - 92. In 93 they switched to the hyper pistons.
aegischief is offline   Reply With Quote
Old 05-01-2013, 11:37 PM   #6
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,576
Actually they switched in late 92, some 92s have them, you can tell by the pan IIRC.

As far as the TRW pistons, I believe they are a replacement piston if I can remember right. Just a basic economy one that will do just fine as long as the person who put the motor back together did it correctly.
scottydsntknow is offline   Reply With Quote
Old 05-02-2013, 04:27 AM   #7
Registered Member
Regular
 
Dustin541's Avatar
 
Join Date: May 2012
Region: Oregon
Posts: 36
Must have done something right I beat on her hard since I joined the military lol
Dustin541 is offline   Reply With Quote
Old 05-02-2013, 04:29 AM   #8
Registered Member
Regular
Supporter
 
93slowstang's Avatar
 
Join Date: Jan 2011
Location: Walker
Region: Louisiana
Posts: 3,436
Quote:
Originally Posted by scottydsntknow View Post
Actually they switched in late 92, some 92s have them, you can tell by the pan IIRC.

As far as the TRW pistons, I believe they are a replacement piston if I can remember right. Just a basic economy one that will do just fine as long as the person who put the motor back together did it correctly.
Trw is factory, but they do still at least make oem forged for replacements.
__________________


93 GT with more junkyard mods than you can imagine.
90 GT bone stock down to the air filter, awaiting restoration.
Join Mustang Evolution today. Click here
93slowstang is offline   Reply With Quote
Old 05-03-2013, 11:32 AM   #9
Registered Member
Regular
 
DustyStang306's Avatar
 
Join Date: Feb 2013
Location: Belleville On
Region: Canada
Posts: 342
Quote:
Originally Posted by aegischief
Ford started putting forged pistons in 85 (4bbl carb only) and 86 - 92. In 93 they switched to the hyper pistons.
+1 but ye they switched in late 92 to the hyper pistons
DustyStang306 is offline   Reply With Quote
Old 05-03-2013, 03:04 PM   #10
Registered Member
Regular
 
86 muscle's Avatar
 
Join Date: Oct 2011
Region: Texas
Posts: 264
Quote:
Originally Posted by DustyStang306 View Post

+1 but ye they switched in late 92 to the hyper pistons
I don't think it was as early as 85. I know my 86 had different pistons than my buddies 85
86 muscle is offline   Reply With Quote
Old 05-03-2013, 03:06 PM   #11
Registered Member
Regular
 
Dustin541's Avatar
 
Join Date: May 2012
Region: Oregon
Posts: 36
I was thinking they were aftermarket since it made 250 to the wheels on a "stock" motor with an xcam and gt40intake
Dustin541 is offline   Reply With Quote
Old 05-03-2013, 07:43 PM   #12
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,576
Quote:
Originally Posted by 86 muscle View Post
I don't think it was as early as 85. I know my 86 had different pistons than my buddies 85
85s had the same pistons as the 87-92.5 cars. The 86s were the bastard year where Ford tried the flat tops. No idea...
scottydsntknow is offline   Reply With Quote
Old 05-03-2013, 08:18 PM   #13
Registered Member
Regular
 
Sgt_Syke's Avatar
 
Join Date: Feb 2013
Location: Colorado Springs
Region: Colorado
Posts: 257
+1 scottydontknow, I had an 85, now an 86. They changed the pistons just like they changed the heads, and got rid of carb.
Sgt_Syke is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



05:52 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.