Port Cylinder Head

copo
3933163_OEM_GM_Aluminum_Intake_68_69_Big_Block_Chevy_L78_396_L72_427_COPO_Yenko_01_hthp

3933163 OEM GM Aluminum Intake 68 69 Big Block Chevy L78 396 L72 427 COPO Yenko

This is an original GM high performance aluminum intake manifolds for Big Block Chevy engines with rectangular port heads and a Holley carburetor. The casting number is 3933163 as shown. There is no casting date on the underside and does not appear to have ever been one as shown. This is a bonus since it can be used on any engine and be correct. This is a very hard to find original GM 3933163 aluminum intake. This intake is in good original condition as shown. It is in bare aluminum finish with no paints or coatings. The intake appears to wear its original finish, not blasted, so I decided to…
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3933163_OEM_GM_Aluminum_Intake_68_69_Big_Block_Chevy_L78_396_L72_427_COPO_Yenko_01_ys

3933163 OEM GM Aluminum Intake 68 69 Big Block Chevy L78 396 L72 427 COPO Yenko

This is an original GM high performance aluminum intake manifolds for Big Block Chevy engines with rectangular port heads and a Holley carburetor. The casting number is 3933163 as shown. The casting date on the underside is partially scraped off from being dragged across the ground as shown. What can be seen is 3.22. The date can not be seen when installed anyway. This is a very hard to find original GM 3933163 aluminum intake. This intake is in good original condition as shown. It is in bare aluminum finish with no paints or coatings. The intake appears to wear its original finish, not blasted, so I decided to leave…
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3933163_OEM_GM_Aluminum_Intake_68_69_Big_Block_Chevy_L78_396_L72_427_COPO_Yenko_01_sgaa

3933163 OEM GM Aluminum Intake 68 69 Big Block Chevy L78 396 L72 427 COPO Yenko

This is an original GM high performance aluminum intake manifolds for Big Block Chevy engines with rectangular port heads and a Holley carburetor. The casting number is 3933163 as shown. The casting date on the underside is 05019 which obviously can not be seen when installed. This is a very hard to find original GM 3933163 aluminum intake. This intake is in very good condition as shown. It is in bare aluminum finish with no paints or coatings and looks more like a piece of jewelry than a mechanical part. The part number, firing order, and all important Winter's Foundry casting mark are all intact and undisturbed. I see no…
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69_Big_Block_Chevy_Rectangle_Port_Cylinder_Heads_3919840_427_425hp_Copo_LS6_L78_01_lf

69 Big Block Chevy Rectangle Port Cylinder Heads 3919840 427 425hp Copo LS6 L78

This is a very nice original matching set of 1969 Big Block Chevy Rectangle Port Cylinder Heads # 3919840. These are complete with valves and have no rust, cracks, damage or modifications. These are date coded D30-9 and E6-9. Please view many more pictures below. The item "69 Big Block Chevy Rectangle Port Cylinder Heads 3919840 427 425hp Copo LS6 L78" is in sale since Saturday, April 6, 2019. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "musclecarsanhandlebars" and is located in Middleburg, Florida. This item can be shipped worldwide. Manufacturer Part Number: 3919840 Brand: Chevrolet…
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