GM 3994026 Heads

( Brand: Gm ), ( Manufacturer Part Number: 3994026 ), ( Part Type: Head ), ( Placement On Vehicle: Front ), ( Country/region Of Manufacture: United States )

Review GM Heads fits LS6 1971

The 3994026 LS6 GM 1971 Heads are a classic upgrade for any performance enthusiast looking to enhance the power and efficiency of their 1971 Chevrolet engine. These heads are specifically designed for the LS6 engine, which was known for its impressive horsepower and torque output in its time.

The 3994026 LS6 GM 1971 Heads are constructed with a high-quality aluminum alloy, providing excellent heat dissipation and reducing the chance of engine overheating. They feature a rectangular port design, which allows for a more efficient fuel-air mixture to enter the combustion chamber, resulting in improved combustion and increased power output.

One of the standout features of these heads is their large 2.20-inch intake valves and 1.65-inch exhaust valves. These large valves allow for a larger volume of air and fuel to enter and exit the engine, which translates to more power and better engine performance. The heads also feature roller camshaft lifters, which reduce friction and provide a smoother, more efficient operation of the camshaft.

Another advantage of the 3994026 LS6 GM 1971 Heads is their improved cylinder head flow. The flow is optimized to provide a more efficient combustion process, which results in increased horsepower and torque. The heads also feature a high-flow cylinder head port design, which allows for a more efficient fuel-air mixture to enter the engine.

Installing the 3994026 LS6 GM 1971 Heads is a straightforward process, but it does require some mechanical knowledge and tools. The heads come with new intake and exhaust manifolds, as well as new valve springs, retainers, and other necessary hardware. The heads are also designed to work with the LS6 engine's original rocker arms, although some aftermarket rocker arms may be compatible with these heads.

In summary, the 3994026 LS6 GM 1971 Heads are a high-quality upgrade for any 1971 Chevrolet engine looking to increase power and efficiency. They feature large valves, roller camshaft lifters, and improved cylinder head flow, which all contribute to better engine performance. With proper installation, these heads can provide a noticeable increase in horsepower and torque, making your 1971 Chevrolet a true powerhouse on the road.

1. Power: The LS6 engine is known for its power and performance, and these heads are no exception. They can provide significant horsepower and torque improvements.

2. Compatibility: These heads are compatible with a wide range of engines, making them a versatile option for custom builds.

3. Durability: GM heads are known for their durability and reliability, which can save you money in the long run by reducing the need for repairs and replacements.

1. Cost: These heads can be expensive, especially if you're looking for high-quality aftermarket options.

2. Availability: Due to their age, finding new or even used LS6 heads in good condition can be challenging.

3. Fitment: While the heads are compatible with a wide range of engines, there may be some modifications required to ensure a proper fit.

If you're looking to boost the power and performance of your engine and have the budget for it, then buying 1971 LS6 GM heads can be a great investment. However, be prepared for potential challenges in terms of availability and fitment, and make sure to do your research to ensure you're getting high-quality parts.

If you're considering buying 1971 LS6 GM heads, I would recommend doing your research and shopping around to find the best deal. Look for reputable sellers and read reviews to ensure you're getting a quality product. Additionally, make sure to budget for any necessary modifications or customization to ensure a proper fit.

Details:

Head numbers are ,f16 71, f29 71 Gm1t, Gm3t, hi pref. Used pair of 1971 LS6 rectangular port, open chamber heads. These heads have some repaired damage in combustion chamber 7 and 8 looks like the seats have been replaced.

Guide plates are for 3/8 push rods. Steel retainers are comp came steel, with 10deg locks.

part #: 3994026 price

• $4900.49

specifications cylinderheapar:

• for models: Ls6
• for years: 1971
• brand: Gm
• mpn: 3994026
• part type: Head
• placement on vehicle: Front
• country/region of manufacture: United States

Seller cylinderheapar:

• city: Topeka, Kansas
• zipcode: 66617

Returns cylinderheapar:

• policy: no returns

Offer cylinderheapar:

• quantity: 1
• min. bid: $250.00
• Started: November 4, 2015, 1:40 am
• best offer: false
• # bids: 0
• # Sold: 0

Shipping cylinderheapar:

• type: Calculated
• handling: 2 days

Payments cylinderheapar:

• MOCC
• PayPal

General cylinderheapar:

• Motors > Parts & Accessories > Car & Truck Parts > Engines & Components > Cylinder Heads & Parts
• in stock: Yes
• condition: Used

Ratings:

1. A+ Buyer! Thank you for shopping at Espeedshop! 10-31-15
2. Quick response and fast payment. Perfect! THANKS!! 11-03-15
3. Thank you for an easy, pleasant transaction. Excellent buyer. A++++++. 10-20-15
4. Thank you for an easy, pleasant transaction. Excellent buyer. A++++++. 10-05-15
5. Great top notch to deal with. Will do business again for sure 10-21-15

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