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#1
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Deuce lt1 head gasket thickness
hi
getting organized to assemble my deuce LT1 sbc what is the correct head gasket thickness for original GM factory assembly application using all std..original block/ heads etc thanks chris
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1970 citrus Yenko Nova |
#2
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I believe it is 0.015 steel shim. Use a copper coat or aluminum paint for sealing.
You may want to double check the deck height with the piston at TDC. Typically the piston is 0.025 down in the hole and with the 0.015 you end up with a quench of 0.040 which is about right. I say typically because this varied a bit form the factory.
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70Z28 04B Norwood Forest Green-white Stripes Black DeLuxe Interior Owned since 1978 - First Car |
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madden (12-18-2018) |
#3
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The factory correct intake manifold gaskets are not available, unless you are willing to trim them.
I last paid $450 for a complete set of NOS correct gaskets including the steel shim head gaskets, intake gaskets, and the correct thick black pan rail gaskets. The red dash shows the correct finger tab on the gasket, the current available has this area completely covered by gasket. ALSO the correct valve cover gasket is ALL CORK not salt and pepper. There is tons of information on all of this on the NCRS website. It is searchable and viewable to non NCRS members.
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~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos |
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madden (12-18-2018) |
#4
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"The factory correct intake manifold gaskets are not available"
Zip Corvette offers a nice version with the tab.
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Steve Nuwer 1970 Z28, Norwood 03A, 48 48, 723 Int, M20, COO, 2021 Legends Platinum restored 1970 L78, Norwood 04C, 17 17, 711 Int, M21, COO, born-with drivetrain project. 1972 Z28, Norwood 11C project, born-with drivetrain, 26 26, 775, M20, CGG project 1970 Z28, Norwood 05C, 48 G, 720 Int, M21, COZ, Original Unrestored (SOLD) www.2ndGenZ.com |
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#5
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I am glad to find them available.... I have one set left and I was not looking forward to paying through the nose the next time I needed them!
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~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos |
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