CNC Head Surprise

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Mar 12, 2012 | 08:00 PM

#41

96capricemgr

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That sounds like a good idea. Hard to keep building without knowing a lot about the foundation.

What is the deck height?

Mar 12, 2012 | 08:25 PM

#42

fisherz28

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From: everett, wa

Quote:

Originally Posted by 96capricemgr

That sounds like a good idea. Hard to keep building without knowing a lot about the foundation.

What is the deck height?

I'll take some measurements next time i get a chance to work on it!

Quote:

Originally Posted by speed_demon24

Depends what your idea of a fun street car is. I enjoyed my car the most when it had the crane 227 cam in it since it drove like stock and had gobs of off idle torque. The first thing I would do is have the heads gone through and try to find out as much as I could about them and see what the combustion chamber cc is for the compression ratio.

That was also on the list of things to do next time I'm in the garage. Already have the plexiglass and graduated cyclinder to measure the heads. I dont spin it to redline often as it is so probably go with a mild cam. That and the 383 should be fun enough. Thanks for the advice.

Mar 12, 2012 | 10:48 PM

#43

96capricemgr

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Once you know what static compression is maybe you could get a mild custom cam to help improve dynamic compression.

Mar 13, 2012 | 08:01 AM

#44

quik95lt1

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From: Rhode Island

first thing and cheapest thing to do if it was me would be toss the thinnest gasket you can find on there it will cut down the quench and increase the compression.......its a win win

Mar 13, 2012 | 10:33 AM

#45

96capricemgr

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Shouldn't he measure deck height first?

Mar 13, 2012 | 10:39 AM

#46

sweetbmxrider

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From: jersey shore

My Mahle -16cc, just to be triple sure they are -16cc

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Mar 13, 2012 | 12:38 PM

#47

quik95lt1

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From: Rhode Island

Quote:

Originally Posted by 96capricemgr

Shouldn't he measure deck height first?

of course he already said he was doing that though lol........assuming he knows the rule of thumb but just incase...........hey OP you can run NO LESS than .030 quench on a street driven steel rod motor.......

Mar 13, 2012 | 01:50 PM

#48

1961ba427

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From: Milledgeville, GA

I've heard that regular Gen1 SBC head gaskets could be used on an LT1 with only minor changes....I figured this is a good time and place to ask.

If so, the .015" thick composition gasket that FelPro sells for old school 350's would give a good bump IF your pistons are at least .015" in the hole. (Usually .020" to .025" stock)

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Mar 13, 2012 | 01:55 PM

#49

bowtienut

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From: Bright, IN

Quote:

Originally Posted by 1961ba427

I don't know about a .015" composition gasket, but this one has been used on a few LT1 builds: Felpro 1094, .015" rubber coated steel shim gasket.
Just use an old LT1 gasket as a template to add the required cooling holes.

Mar 13, 2012 | 02:05 PM

#50

1961ba427

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From: Milledgeville, GA

Thanks....that is the one I was thinking of.

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