why is the vally "block off plate" so thick?

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Dec 13, 2005 | 12:29 PM

treyZ28

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From: Dallas, North Mexico

why is the vally "block off plate" so thick?

the LS1 has a dead vally- but i noticed my the plate was REALLY thick. What gives? you would think a thin peice of of stamped steel would do the trick.

Supplier planning to pull a cost savings rabbit out of the hat?

Dec 13, 2005 | 01:08 PM

jub jub

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From: Warner Robins, GA

I would imagine it's thick because it's where the knock sensors are located.

Dec 13, 2005 | 01:45 PM

c5dream

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Yeah I'd say the same thing because of knock sensors.

Dec 13, 2005 | 01:51 PM

Cop Car

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From: Indy

im sure it also adds rigidity to the block (think about the aftermarket girdles for sale) unlike first gen SBCs as you know the intake isnt a structural part of the motor in Gen IIIs thats my guess

Dec 13, 2005 | 04:40 PM

orangeapeel

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From: Justin, TX

Quote:

Originally Posted by Cop Car

im sure it also adds rigidity to the block (think about the aftermarket girdles for sale) unlike first gen SBCs as you know the intake isnt a structural part of the motor in Gen IIIs thats my guess

this is what I was already assuming as well. Anyone else know?

Dec 13, 2005 | 09:56 PM

01ArcticSS

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Quote:

Originally Posted by orangeapeel

this is what I was already assuming as well. Anyone else know?

Metal distorts with heat, and I believe it is worse when it is exposed to heat cycling (hot then cold, then hot...) - a thin piece would warp fairly quickly and you would be letting all kinds of nasties into the valley....

Dec 14, 2005 | 12:25 AM

treyZ28

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From: Dallas, North Mexico

Quote:

Originally Posted by Cop Car

im sure it also adds rigidity to the block (think about the aftermarket girdles for sale) unlike first gen SBCs as you know the intake isnt a structural part of the motor in Gen IIIs thats my guess

wouldn't they use steel then? why aluminum? its more expensive and weaker