Which head gaskets for TFS 225 ?
03-23-2007, 06:38 PM
#21
TECH Fanatic
iTrader: (3)
Join Date: Jul 2004
Location: Arlington Tx
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
I was told with a TFS 225cc head with a stock GM LS2 gasket and a 67cc that I would be at 11.75 comp. If not somebody let me know what I need to get to be at 11.75. Thanks
03-23-2007, 10:59 PM
#22
12 Second Club
iTrader: (2)
Join Date: Mar 2004
Location: Jenison, MI
Posts: 478
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jeremym
I was told with a TFS 225cc head with a stock GM LS2 gasket and a 67cc that I would be at 11.75 comp. If not somebody let me know what I need to get to be at 11.75. Thanks
03-24-2007, 08:54 AM
#23
TECH Fanatic
iTrader: (3)
Join Date: Jul 2004
Location: Arlington Tx
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HEMIETR
LS1 or LS2? Whats the piston to deck clearence? Either way, you're going to need to mill and or go with a thinner gasket. For example, I have a stock bore LS2. Piston to deck .005 out of the bore, .045 x 4.070 gasket, 61cc chambers = 11.72:1. Quench = .040.
03-24-2007, 04:11 PM
#24
12 Second Club
iTrader: (2)
Join Date: Mar 2004
Location: Jenison, MI
Posts: 478
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jeremym
It is a 4.060 bore on a 6.0 iron block, piston are -2cc. So with -2cc piston,67cc head, and a stock LS2 gasket what comp does that make me? I do not know how much the piston comes out of the hole.
There is no way to accurately figure the CR with out knowing the piston to deck clearence.
Why do you want to use the stock gasket?
03-24-2007, 07:08 PM
#25
On The Tree
Thread Starter
Join Date: Dec 2003
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HEMIETR
I'm not finished yet. I torqued down the passenger side head with the ground stap pinched in it. Had to take the head to the machine shop to have it welded and resurfaced. Now I'm waiting on another head gasket.
03-25-2007, 12:35 AM
#26
TECH Fanatic
iTrader: (3)
Join Date: Jul 2004
Location: Arlington Tx
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HEMIETR
There is no way to accurately figure the CR with out knowing the piston to deck clearence.
Why do you want to use the stock gasket?
Why do you want to use the stock gasket?
03-25-2007, 08:58 AM
#27
12 Second Club
iTrader: (2)
Join Date: Mar 2004
Location: Jenison, MI
Posts: 478
Likes: 0
Received 0 Likes
on
0 Posts
They recommended the stock gasket. I wanted a touch more compression and a tighter quench that what the stock gasket offers. I used Cometic. I got them from FlowTech Induction.
