LT1 head gasket ?

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Dec 17, 2009 | 06:22 PM

surfer93

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LT1 head gasket ?

I need new head gaskets and I went to Autozone and now I have questions.

1) There are 18 different head gaskets from $22 to $85, what is the difference between MLS bore bead combustion seal and Copperwire combustion seal?

2) What does "Minimal brinelling of aluminum heads" mean?

3) what does "Stainless steel core laminate construction" mean?

This is a stock engine that I am going to polish the heads, while there off.

Also, is it really necessary to replace the head bolts?

Thanks in Advance!!

Dec 17, 2009 | 07:07 PM

STL94LT1

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From: O'Fallon Missouri

Here's a high quality, cheap head gasket that will increase your compression and give you a little more horsepower.

http://www.cnc-motorsports.com/product.asp?ProdID=20111

Dec 17, 2009 | 07:09 PM

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by STL94LT1

Here's a high quality, cheap head gasket that will increase your compression and give you a little more horsepower.

http://www.cnc-motorsports.com/product.asp?ProdID=20111

+1 on those.

Dec 17, 2009 | 08:00 PM

tblt44

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From: Tampa Fl

Quote:

Originally Posted by STL94LT1

Here's a high quality, cheap head gasket that will increase your compression and give you a little more horsepower.

http://www.cnc-motorsports.com/product.asp?ProdID=20111

What kind of HP increase are we talking about? I would guess 5 hp.
What kind of compresion should you expect with those?

Dec 17, 2009 | 08:01 PM

pr0zac

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From: Pittsburgh Pa

on a stock lt1 right about 11:1. i don't think it will be a significant gain in hp but it will make your quench better.

Dec 17, 2009 | 08:04 PM

94z07fx3

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IMO
GM Headgasket is just fine 10168457 $30

And yes. TTY bolts should be replaced.

ARP 134-3701 head bolts $70

Dec 17, 2009 | 08:13 PM

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by 94z07fx3

IMO
GM Headgasket is just fine 10168457 $30

And yes. TTY bolts should be replaced.

ARP 134-3701 head bolts $70

Composition gasket for LT1/LT4 engines.
Compressed thickness is 0.050".

that and the piston .035 in the hole makes for a fanastic quench. although the gm gasket is a quality gasket its not ideal. if you are that hung up get an impala gasket. they are .028 compressed thickness.

Dec 17, 2009 | 08:17 PM

94z07fx3

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Quote:

Originally Posted by pr0zac

Would you advise the use of copper spray for gaskets that were meant for iron blocks with iron heads? (when used with aluminum heads on an iron block)

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Dec 17, 2009 | 08:19 PM

surfer93

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Quote:

Originally Posted by STL94LT1

Here's a high quality, cheap head gasket that will increase your compression and give you a little more horsepower.

http://www.cnc-motorsports.com/product.asp?ProdID=20111

These say for 4.010, I thought stock was 4.000?

Dec 17, 2009 | 08:20 PM

#10

surfer93

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Quote:

Originally Posted by 94z07fx3

IMO
GM Headgasket is just fine 10168457 $30

And yes. TTY bolts should be replaced.

ARP 134-3701 head bolts $70

TTY bolts?
Are they the head bolts?

Dec 17, 2009 | 08:22 PM

#11

STL94LT1

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From: O'Fallon Missouri

Quote:

Originally Posted by 94z07fx3

Would you advise the use of copper spray for gaskets that were meant for iron blocks with iron heads? (when used with aluminum heads on an iron block)

No!!

Dec 17, 2009 | 08:43 PM

#12

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by surfer93

These say for 4.010, I thought stock was 4.000?

all head gaskets need to be larger then the bore for proper sealing.

Dec 17, 2009 | 08:44 PM

#13

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by 94z07fx3

Would you advise the use of copper spray for gaskets that were meant for iron blocks with iron heads? (when used with aluminum heads on an iron block)

is this a smart *** remark? if so you're a moron.

Dec 17, 2009 | 08:46 PM

#14

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by surfer93

TTY bolts?
Are they the head bolts?

torque to yield. yes the head bolts

Dec 17, 2009 | 08:48 PM

#15

aboatguy

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From: Slidell Louisiana

Quote:

Originally Posted by pr0zac

+1 on those.

Thats what I use on my impala....good gaskets

Dec 17, 2009 | 08:49 PM

#16

pr0zac

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From: Pittsburgh Pa

Quote:

Originally Posted by surfer93

These say for 4.010, I thought stock was 4.000?

its a 4.1 inch bore for that gasket BTW..

Dec 17, 2009 | 08:50 PM

#17

94z07fx3

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Quote:

Originally Posted by pr0zac

is this a smart *** remark? if so you're a moron.

I've read contradicting advise. I asked a question. It was not a remark.

Questions end with these "?"

Remarks end with these "."

If you didn't know that you're...

Why the name calling bull**** for a simple question?

Dec 17, 2009 | 09:05 PM

#18

94z07fx3

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Quote:

Originally Posted by pr0zac

so when you are talking to someone you quote yourself? <--question, but also a hair of sarcasm.

I now know exactly what weight to assign to your comments. Don't worry I won't see them anymore.

Dec 17, 2009 | 09:05 PM

#19

pr0zac

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From: Pittsburgh Pa

i know the difference. thanks.. i also asked a question.. and the remark depended on the answer.. if you didn't know that then you're..

Dec 17, 2009 | 09:06 PM

#20

pr0zac

Melting Slicks

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Posts: 2,141

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From: Pittsburgh Pa

Quote:

Originally Posted by 94z07fx3

I now know exactly what weight to assign to your comments. Don't worry I won't see them anymore.

i don't know how i will sleep at night.

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