Head gaskets
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Cargo Master
Joined: Mar 2006
Posts: 2,789
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From: Sand GAp, KY
Head gaskets
I was watching power block a couple weeks ago and on horse power they were building a chevy engine. The head gaskets they used were 3 layers of stainless with membranes between. They claimed that as the head lifted a little with compression the gasket expanded with it to keep the seal. Do they make these for our engines? It seems they would be a great help with higher boost levels.
Fleet Owner
Joined: Jul 2006
Posts: 20,389
Likes: 850
From: Mi'kma'ki
a little off topic.but i used to have an old car with a 400m.the biggest gain i saw was when adding intake gaskets with a screen inside.man that thing loved how it broke up the fuel from the carb so more air could mix with it!
as far as increasing compression i doubt it.id be very careful at least with the 7.3 these are not gassers,and already have more than twice the compression of course.
the biggest thing i think our engines want is air,air,and more air.
i cant wait til mines on the road so i can see if a turbo is in order.
it looks like many are finding some really sweet deals on turbos due to the age of our trucks now.have you considered adding a turbo?(didn't see you have one in the sig.this is the largest single gain for our motors)
open that stock exhaust up is sure to make a world of difference too.
air in,and air out seems to be our priority for most hp/trq/mpg gains with our idi's.
compression isn't our weak link.
as far as increasing compression i doubt it.id be very careful at least with the 7.3 these are not gassers,and already have more than twice the compression of course.
the biggest thing i think our engines want is air,air,and more air.
i cant wait til mines on the road so i can see if a turbo is in order.
it looks like many are finding some really sweet deals on turbos due to the age of our trucks now.have you considered adding a turbo?(didn't see you have one in the sig.this is the largest single gain for our motors)
open that stock exhaust up is sure to make a world of difference too.
air in,and air out seems to be our priority for most hp/trq/mpg gains with our idi's.
compression isn't our weak link.
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Cargo Master
Joined: Mar 2006
Posts: 2,789
Likes: 5
From: Sand GAp, KY
I had a turbo lined up for $300 but my tranny died and had to replace it instead. I am still working on the exhaust part. I wanted to wait on the turbo but think I with go ahead and build it now instead. I am gonna jump up to 3" right off the manifolds and run them out the sides before the rear wheels. No mufflers. I love to here this thing roar. It currently has n omuffler and it sounds great.
Senior User
Joined: Nov 2009
Posts: 255
Likes: 1
Agreed, the muffler is a wasted expense and something for the ground to grab onto anyway. Starting cheap with improved intake, K&N, and oversized pipe, less the muffler, when exhaust work is due will be modestly noticeable.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Compression is not the weak link, well it is sort of the the downfall though when adding a turbo.
With a 21.5 to 1 base compression ratio, 15 pounds of boost jumps the compression ratio up to 43.4 to 1.
With stock head bolts, that is about all they can handle.
With a 21.5 to 1 base compression ratio, 15 pounds of boost jumps the compression ratio up to 43.4 to 1.
With stock head bolts, that is about all they can handle.
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