317 Head swap

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Feb 23, 2010 | 12:00 PM

kobraa

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From: Rockland County, NY

317 Head swap

I'm swapping my stock 806 heads on my 98 TA for some remanufactured 317's. Would the 5.7 L MLS gaskets be okay to use? I'm doing a basic stock rebuild with some bolt ons.

Feb 23, 2010 | 12:13 PM

Ford_Assassin

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I am sure you already know this, but you are going to lose a decent amount of compression running 317 heads with stock LS1 pistons.

Last edited by Ford_Assassin; Feb 23, 2010 at 08:25 PM. Reason: Correction....

Feb 23, 2010 | 12:56 PM

King Nothing

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From: Central Valley

Quote:

Originally Posted by Ford_Assassin

The stock 5.7 MLS gaskets will be fine.

I am sure you already know this, but you are going to lose a decent amount of compression running 317 heads with stock LS1 pistons.

^ yep you are

Feb 23, 2010 | 01:01 PM

kobraa

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I'm aware...but the heads were milled down a bit so I wont lose too much. Plus this gives me the opportunity to slap on a blower or nitrous system if I ever want : )

Feb 23, 2010 | 01:21 PM

BadgeZ28

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Nope. Use the 6.0 mls gasket with the 317's

Feb 23, 2010 | 01:40 PM

MonmouthCtyLS7

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Quote:

Originally Posted by kobraa

I'm aware...but the heads were milled down a bit so I wont lose too much. Plus this gives me the opportunity to slap on a blower or nitrous system if I ever want : )

Should have mentioned that in the 1st place

Feb 23, 2010 | 02:44 PM

kobraa

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From: Rockland County, NY

I guess...I was more concerned with using the correct gaskets tho

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Feb 23, 2010 | 05:53 PM

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I called Texas Speed and they told me to use 6.0L gaskets.

Feb 23, 2010 | 06:00 PM

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69LT1Bird

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From: Lapeer, MI

The combustion chamber width is the issue, if the gasket is too small it will hang out or be too close to the edge of the cylinder and it will become a hot spot or get burned. So, use 6.0L headgaskets.

Feb 23, 2010 | 06:02 PM

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1slowfbody

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Quote:

Originally Posted by kobraa

I'm aware...but the heads were milled down a bit so I wont lose too much. Plus this gives me the opportunity to slap on a blower or nitrous system if I ever want : )

stage 2.5 LS6 heads work great for blowers also