DNJ
DNJ 1965 Avanti II 5.3L Conversion / Lower Gasket Set
DNJ 1965 Avanti II 5.3L Conversion / Lower Gasket Set
Part number: LGS3101_56
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- Free fitment check before you order
Avanti II Conversion / Lower Gasket Set from DNJ. Gaskets seal the joints between engine parts so oil, coolant and air stay where they belong. Part number: LGS3101_56.
Key features
- Conversion Set
- Lower position
- Made for 16V OHV engines
Specifications
- Brand: DNJ
- Part type: Gasket
- Part number: LGS3101_56
- Position: Lower
- Engine: 5.3L
- Engine code: 16V OHV
- Model years: 1965
Fitment
- Years: 1962–1991
- Vehicles: Avanti, GM
- Cylinders: V8
- Displacement: 4.6L, 4.9L, 5.0L, 5.3L, 5.7L, 6.6L
- Engine: 283, 302, 305, 307, 327, 350, 400 OHV 16V
- Engine codes: CHEVROLET
What it does
Replacing a gasket is usually more labor than parts, so it pays to replace any others you disturb on the way in. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Clean both mating surfaces completely and follow the bolt torque and sequence for your engine.
- Sealant where called for: Some joints need a dab of sealant at corners or seams; others must go on dry.
- Bolts and grommets: Rubber grommets and old bolts are worth replacing if they are damaged.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
What is the part number of this gasket?
LGS3101_56 (DNJ). Compare it with the number on your old part or in your parts catalog.
Which engine is it for?
It is listed for the 5.3L 16V OHV engine. Check the engine code on your vehicle if it was offered with more than one engine.
Which side or position does it fit?
It is listed for the lower position. If you are replacing both sides, check whether you need one of each.
Before you order
- Check the position: this part is listed as lower.
- Compare part number LGS3101_56 with your original part.
Good to know
- Warranty: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.

Before you order: fitment and what to plan
Gaskets seal the joints between engine parts so oil, coolant and air stay where they belong.
Fitment notes
- Engine: check the engine size listed against your vehicle's VIN or under-hood label.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentPlan the whole job
- Sealant where called for. Some joints need a dab of sealant at corners or seams; others must go on dry.
- Bolts and grommets. Rubber grommets and old bolts are worth replacing if they are damaged.
More for your car: Engine · Engine
Questions about gasket
Will this fit my car?
Do I need sealant with this gasket?
Can I reuse an old gasket?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.