CHEVY 3964291 Block Heads Port Rectangle Big A-20-70 L-8-9 8/9

( Manufacturer Part Number: 3964291 ), ( Part Type: Block Head )

Review CHEVY Block Heads 8-9 Port 20-70 Rectangle 291 Big fits CHEVELLE 454 1970

The A-20-70 block Chevelle 3964291 is a powerful and iconic engine block that harks back to the glory days of muscle cars. This block is specifically designed for 8-9 chevy engines, and it's perfect for those looking to install a 20-70 rectangle 2-bolt main 291 big L-8-9 454 cubic inch engine.

The A-20-70 block is a cast iron monolith, built to withstand the rigors of high-performance applications. It features a 4.00-inch bore and a 3.75-inch stroke, which translates to ample power and torque. The block is also equipped with 2-bolt main caps, which provide superior strength and rigidity to handle the massive horsepower that a 454 cubic inch engine can produce.

One of the standout features of this block is its rectangular 291 2-bolt main pattern. This pattern is a popular choice among engine builders due to its strength and versatility. It allows for a wide range of crankshaft options, ensuring that you can find the perfect crank to match your specific build goals.

The A-20-70 block also features a deep sump oil pan, which provides ample oil capacity to keep your engine cool and lubricated, even under the most demanding conditions. The block is also equipped with factory-style cylinder heads, which are known for their excellent flow and power potential.

In terms of dimensional compatibility, the A-20-70 block is designed to fit standard 1970 Chevelle engines. It's important to note that while this block is a direct replacement for many Chevelle engines, it may require additional modifications to fit certain applications. It's always a good idea to consult with a knowledgeable engine builder or mechanic before beginning any installation.

In conclusion, the A-20-70 block Chevelle 3964291 is a powerful and versatile engine block that's perfect for those looking to build a high-performance 454 cubic inch engine. Its rectangular 291 2-bolt main pattern, deep sump oil pan, and factory-style cylinder heads make it a popular choice among engine builders. Whether you're looking to restore a classic muscle car or build a modern powerhouse, this block is a solid foundation for your build.

1. Powerful engine: The 429 cubic inch V8 engine is known for its power and torque, making the car a great choice for those who enjoy high-performance driving.

2. Unique appearance: The A-20-70 block heads and 20-70 rectangle 291 1970 big L-8-9 port give the car a distinctive appearance, making it stand out from other Chevelles on the road.

3. Collectible value: Classic Chevelles with high-performance engines, such as the 429, are becoming increasingly valuable as collectibles, making this car a potential investment.

1. High cost: Classic cars with high-performance engines can be expensive to purchase, maintain, and insure.

2. Limited availability: Classic cars with specific engine configurations, such as the 429 V8, can be difficult to find, making it challenging to find replacement parts or repair services.

3. Fuel efficiency: Classic cars with high-performance engines are not known for their fuel efficiency, which can result in higher fuel costs.

If you're a classic car enthusiast who appreciates power and performance, a 1970 Chevy Chevelle with A-20-70 block heads, 396/429 engine, and 20-70 rectangle 291 1970 big L-8-9 port can be an exciting and rewarding investment. However, before making the purchase, it's important to consider the potential costs associated with owning and maintaining a high-performance classic car, such as repairs, insurance, and fuel. Additionally, be prepared to spend time searching for replacement parts and repair services, as these cars can be challenging to find.

If you're interested in purchasing a 1970 Chevy Chevelle with A-20-70 block heads, 396/429 engine, and 20-70 rectangle 291 1970 big L-8-9 port, I recommend doing thorough research on the car's history, condition, and potential costs before making a purchase. It's also a good idea to seek out a reputable mechanic for a pre-purchase inspection to ensure that the car is in good working order. Finally, be prepared to invest time and money in maintaining and enjoying your classic car, as they can be a source of joy and pride for many car enthusiasts.

Details:

No porting or polishing. Great pair of heads off the same engine.

Valve seats and guides look good. Not over milled with plenty of material for future decking.

part #: 3964291 prices

• $400.00-$2495.00

specifications cylinderheapar:

• for models: 454, Chevelle
• for makes: Chevy
• for years: 1970
• mpn: 3964291
• part type: Block Head

Ratings:

1. Item as described promt shipping Good ! 10-28-16
2. Highly Recommended--Nice Decent Person To Deal With! 10-27-16
3. Item as described, quick on time shipping. Would buy from again. 5 Stars 10-26-16
4. Lightning Quick Payment !! A+++ 10-28-16
5. Just what I was expecting! 10-28-16

Seller cylinderheapar:

• zipcode: 45229
• city: Cincinnati, Ohio

Returns cylinderheapar:

• paid by: Buyer
• time: 30 Days
• type: Money Back
• policy: returns accepted

General cylinderheapar:

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

Offer cylinderheapar:

• quantity: 1
• Started: October 28, 2016, 6:41 pm
• # Sold: 0
• best offer: false
• # bids: 0

Shipping cylinderheapar:

• type: Flat
• handling: 1 days
• cost: $150.0

Payments cylinderheapar:

• PayPal

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