Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Hellfire ring end gap?

Thread Tools
 
Search this Thread
 
Old Mar 30, 2008 | 11:07 PM
  #1  
lcvette's Avatar
Thread Starter
Launching!
iTrader: (3)
 
Joined: Feb 2002
Posts: 281
Likes: 0
From: Wilmington, NC
Default Hellfire ring end gap?

Hey guys,

I am getting ready toi assemble my new turbo shortblock and was wondering if anyone had any special proven end gaps for the top and second rings on a motor which will likely see around 850-1000rwhp and 19-26psi of boost. any help or suggestions are appreciated. from what I have read, the second ring gap is helpful to be twice the area of the top ring, not twice the gap but the exposed area between the piston and the cylinder wall, whatever this area is would be reflected by having a slightly larger gap of the second ring. great info but what would the gap of the top ring be for the best seal and function from your experience?

thanks!

CHris
Reply
Old Mar 30, 2008 | 11:26 PM
  #2  
mrdragster1970's Avatar
6 & 8 Second Club
 
Joined: Aug 2006
Posts: 2,284
Likes: 0
From: Illinois, RT 66 dragway area
Default

.

Always used the bore formula, so far no problems.

.
Reply
Old Apr 18, 2008 | 02:22 PM
  #3  
DeltaT's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2005
Posts: 2,404
Likes: 1
Default

Speed-Pro publishes a chart with recommended top and 2nd ring gaps for their Hellfire rings. I ended up with .026" top and bottom for a mid-boost (10-15#) 434ci SBC.

Jim
Reply




All times are GMT -5. The time now is 08:06 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE