Lightning pistons same as reg 351w pistons?? - Ford Mustang Forums : Corral.net Mustang Forum
Go Back   Ford Mustang Forums : Corral.net Mustang Forum > Windsor Tech Forums > 5.0/5.8 Engine Tech

Corral.net is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-13-2003, 03:44 AM   #1
Registered User

Trader Feedback: (1)
 
Join Date: Oct 2000
Location: Northeastern Pa
Posts: 26

Question Lightning pistons same as reg 351w pistons??

Hi, I lucked out and found a roller 351w from a 95 lightning that I'm having rebuilt for my Mustang. The guys at the local parts store told me that in their books for the pistons it only goes up to 93. And even on the pre 93 pistons there is a side note that says except lightning. So, My question is. Is there a difference between lightning pistons and regular 351 windsor pistons? If there is a difference what is it? Could I use regular 351w forged pistons in my lightning block? Thanks....Marc
__________________
95 Lightning 351w 30 over, H beams, Probe pistons, balanced assy. Edelbrock heads 2.02/1.60 valves, Crower 15512 cam, GT-40 intake, 75mm T/B, 42 lbers, 80 mm C&L, BBK 1 3/4 L/Ts, Novi 2K, center force d/f clutch, 3.73s and a factory T-5. All in a 92 vert.
marstang92 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-13-2003, 12:18 PM   #2
Registered User
 
JT Racin's Avatar

Trader Feedback: (0)
 
Join Date: Aug 2001
Location: Harrod,OH usa
Posts: 355

The 1st Gen. Lightnings 351W used a dished piston and had a Comp. Ratio of only 8.8:1. w/ the GT40 Iron heads.
Really depends on what you had plan to do with the engine and what CR.

Being a parts store most of them usually sell a TRW/Sealed Power type piston, which are OK, but they are heavy slugs.

JT
__________________
Stock short block, AFR 185's,XE274HR...
"Tons of Suspension"...
11.69 @ 116mph on "Nothing but Atsmophere"...PRICELESS
"Live Fast...Die Young...Leave a Good Looking Corpse"
JT Racin is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-13-2003, 01:15 PM   #3
Registered User

Trader Feedback: (1)
 
Join Date: Oct 2000
Location: Northeastern Pa
Posts: 26

So, I guess I could put any 351w piston in there as long as it's the compression ratio that I want? The lighter the better i'm guessing. Thanks...Marc
__________________
95 Lightning 351w 30 over, H beams, Probe pistons, balanced assy. Edelbrock heads 2.02/1.60 valves, Crower 15512 cam, GT-40 intake, 75mm T/B, 42 lbers, 80 mm C&L, BBK 1 3/4 L/Ts, Novi 2K, center force d/f clutch, 3.73s and a factory T-5. All in a 92 vert.
marstang92 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-13-2003, 04:20 PM   #4
Registered User
 
mercoug302's Avatar

Trader Feedback: (0)
 
Join Date: Apr 2002
Location: the west Jersey shore
Posts: 305

Yes they do. All roller 5.8 blocks have the same pistons. My 1997 F-250 shortblock has the same pistons in a 1994 lightning motor. They have huge valve reliefs.

I had to mill my TFS heads down to 43cc's per chamber just to get a 10:1 CR.
__________________
1988 Mercury Cougar XR7
mercoug302 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-14-2003, 02:07 AM   #5
Registered User

Trader Feedback: (1)
 
Join Date: Oct 2000
Location: Northeastern Pa
Posts: 26

So when I order pistons do I have to tell them it's a roller block? Or could I just get TRW 351w pistons for any year? ....Marc
__________________
95 Lightning 351w 30 over, H beams, Probe pistons, balanced assy. Edelbrock heads 2.02/1.60 valves, Crower 15512 cam, GT-40 intake, 75mm T/B, 42 lbers, 80 mm C&L, BBK 1 3/4 L/Ts, Novi 2K, center force d/f clutch, 3.73s and a factory T-5. All in a 92 vert.
marstang92 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-14-2003, 02:19 AM   #6
Registered User
 
JT Racin's Avatar

Trader Feedback: (0)
 
Join Date: Aug 2001
Location: Harrod,OH usa
Posts: 355

Roller block/ Non roller block doesn't matter. They still have same bore and stroke. Use same pistons

You will need a 351W piston for the later block with the 9.503 deck height. Are you planning on a cast replacement piston or going with a forged???

Let me know I have a Federal Mogul (TRW)/Speed Pro performance catalog for part #'s. What head is going to be used?

JT
__________________
Stock short block, AFR 185's,XE274HR...
"Tons of Suspension"...
11.69 @ 116mph on "Nothing but Atsmophere"...PRICELESS
"Live Fast...Die Young...Leave a Good Looking Corpse"
JT Racin is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-14-2003, 03:33 AM   #7
Registered User

Trader Feedback: (1)
 
Join Date: Oct 2000
Location: Northeastern Pa
Posts: 26

I have Edelbrock Performer heads. With 202 valves. Let me know the part number or specs on the pistons. Thanks....Marc
__________________
95 Lightning 351w 30 over, H beams, Probe pistons, balanced assy. Edelbrock heads 2.02/1.60 valves, Crower 15512 cam, GT-40 intake, 75mm T/B, 42 lbers, 80 mm C&L, BBK 1 3/4 L/Ts, Novi 2K, center force d/f clutch, 3.73s and a factory T-5. All in a 92 vert.
marstang92 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-14-2003, 03:34 AM   #8
Registered User

Trader Feedback: (1)
 
Join Date: Oct 2000
Location: Northeastern Pa
Posts: 26

Also....I'm going with the forged pistons. I need a 30 over. ....Marc
__________________
95 Lightning 351w 30 over, H beams, Probe pistons, balanced assy. Edelbrock heads 2.02/1.60 valves, Crower 15512 cam, GT-40 intake, 75mm T/B, 42 lbers, 80 mm C&L, BBK 1 3/4 L/Ts, Novi 2K, center force d/f clutch, 3.73s and a factory T-5. All in a 92 vert.
marstang92 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-14-2003, 10:50 AM   #9
Registered User
 
JT Racin's Avatar

Trader Feedback: (0)
 
Join Date: Aug 2001
Location: Harrod,OH usa
Posts: 355

The L2446F30 would yield ya about 9.3:1 CR with that Edelbrock head. It consist of a .110 dish.

What CR did you want to be at. Is this N/A, blower etc....
I see you have used DSS shortblock in past. Have you considered there piston only kits. They would be somewhat lighter and more custom to your needs.
__________________
Stock short block, AFR 185's,XE274HR...
"Tons of Suspension"...
11.69 @ 116mph on "Nothing but Atsmophere"...PRICELESS
"Live Fast...Die Young...Leave a Good Looking Corpse"
JT Racin is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 12:09 PM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2
© 2010-2011 Corral.net

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.