Edelbrock
Edelbrock 7788 Valley Cover GM Gen III LS-Series (No Knock Sensor Bosses)
Edelbrock 7788 Valley Cover GM Gen III LS-Series (No Knock Sensor Bosses)
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Edelbrock part #7788 is a Valley Cover Plate intended for use on 1997-2004 GM LS1/LS6 Engines and similar GM Gen III Engines that have been converted from EFI to Carbureted set ups. The main feature of this part is that it is absent of the knock sensor bosses contained on the stock piece which become no longer necessary when switching to a carburetor. The casting will offer a breather boss that will need to be drilled and tapped by those retaining the stock LS-6 breather configuration or for LS-1 users looking to convert to an LS-6 style. It is to be a sand cast part and will be offered in a natural aluminum finish. Note that piece will not work with LS2, LS7, LSX or any other GM GEN IV engines.
Fitment
- Fits Chevrolet Gen III LS1 engines: 346 (5.7L)
- Fits Chevrolet Gen III LS6 engines: 346 (5.7L)
Engine-specific part, not specific to one vehicle. Confirm the engine and component match before ordering.
Edelbrock warrants this part against defects in material and workmanship for one year from the date of purchase, provided it is properly installed and operated under normal conditions. Racing or competition use, marine use unless the part is listed for marine applications, modification, improper installation or maintenance, misuse and excessive wear are excluded. The remedy is repair or replacement of the part, and installation and removal costs are not covered. Claims are made through the original place of purchase or directly with Edelbrock, with proof of purchase.
Specifications
- Brand: Edelbrock
- Manufacturer Part Number: 7788
- Type: Engine Covers
- Manufacturer Warranty: 1 Year Limited
- Condition: New
Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.
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Manufacturer's Warranty — Edelbrock
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Manufacturer's Warranty — Edelbrock
Edelbrock warrants its products against defects in material and workmanship for one year from the date of purchase, except where a product line carries different terms: Performer Series carburetors and Race Division parts are covered for 90 days, Thunder Series AVS carburetors for one year, remanufactured carburetors for 30 days, and E-Force superchargers for three years or 36,000 miles, whichever comes first. Use of E85 fuel voids carburetor coverage. Racing or competition use, marine use unless the part is listed for marine applications, modification, improper installation or maintenance and excessive wear are excluded, and installation and removal costs are not covered. Claims are made through the place of purchase or directly with Edelbrock with proof of purchase; Pro-Flo EFI systems, crate engines, E-Force superchargers and cylinder heads are returned directly to Edelbrock.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Edelbrock. Contact us if you need help with a warranty claim.

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