3856723 Heads 140HP

( Manufacturer Part Number: 3856723 ), ( Part Type: Hp Head ), ( Surface Finish: Needs To Be Cleaned )

Review 140hp Heads Hp fits CORVAIR 1965–1969

The 3856723 140hp heads are a high-performance upgrade for the 1965-1969 Corvair engines. These cylinder heads are designed to provide increased power and efficiency, making them an excellent choice for Corvair enthusiasts looking to enhance their vehicle's performance.

The 3856723 140hp heads are made of high-quality aluminum alloy, which is lightweight yet strong. This material helps to reduce the overall weight of the engine, improving acceleration and fuel efficiency. The heads feature a large intake and exhaust port design, which allows for increased air and fuel flow, resulting in higher combustion efficiency and more power.

The 3856723 140hp heads also feature a high-flow, multi-angle valve job, which allows for better airflow and reduced turbulence. This design helps to improve engine breathing, reducing the likelihood of detonation and increasing power output. The heads also include high-performance valve springs and retainers, which provide the necessary tension to maintain proper valve function under high-load conditions.

The 3856723 140hp heads are also compatible with a variety of intake and exhaust systems, making them a versatile upgrade option for Corvair enthusiasts. They are also easy to install, with simple bolt-on design and detailed installation instructions included with each set.

Overall, the 3856723 140hp heads are a high-quality, high-performance upgrade for the 1965-1969 Corvair engines. They provide increased power and efficiency, while also being easy to install and compatible with a variety of intake and exhaust systems. Whether you're looking to enhance your daily driver or take your Corvair to the track, these heads are a great option to consider.

1. Unique and Rare: The Corvair with 3856723 140hp heads is a rare and unique find. It may be an interesting talking point for car enthusiasts and collectors.

2. Powerful Engine: The 140hp heads provide more power and performance compared to the stock engine, allowing for faster acceleration and improved handling.

3. Affordable Compared to Other Muscle Cars: Corvairs are generally more affordable than other muscle cars, making it a good option for budget-conscious buyers.

1. Limited Availability of Parts: Due to its rarity, finding replacement parts for this specific model may be challenging.

2. Less Popular than Other Muscle Cars: Corvairs may not have the same level of popularity as other muscle cars, which could make it more difficult to sell in the future.

3. Potential Issues with Modifications: Modifications to the engine and other parts of the car may lead to reliability issues and increased maintenance costs.

If you are a car enthusiast looking for a unique and powerful ride, the 1965-1969 Corvair with 3856723 140hp heads may be a good option for you. However, be prepared for potential challenges in finding replacement parts and dealing with possible reliability issues. If you are willing to take on these challenges, this car could be a rewarding addition to your collection.

Before making a purchase, it is important to thoroughly research the car and have it inspected by a qualified mechanic to ensure that it is in good condition and that the modifications have been done correctly. It may also be worth investing in a spare set of parts to have on hand in case of emergencies. Overall, if you are willing to put in the effort and have the budget for potential repairs, this rare and powerful Corvair could be a great investment.

Details:

Used 140hp heads this is a matching numbers pair of Corvair high performance heads will need rebuild. No reserve.

part #: 3856723 prices

• $150.00-$700.00

specifications cylinderheapar:

• for models: Corvair
• for years: 1965-1969
• mpn: 3856723
• part type: Hp Head
• surface finish: Needs To Be Cleaned

Payments cylinderheapar:

• PayPal

Offer cylinderheapar:

• Started: August 7, 2016, 9:47 am
• # Sold: 0
• min. bid: $100.00
• # bids: 0
• quantity: 1
• best offer: false

Shipping cylinderheapar:

• handling: 3 days
• type: Calculated

Returns cylinderheapar:

• policy: no returns

General cylinderheapar:

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

Ratings:

1. thank you 07-28-16
2. Very nice! Well-packed, and even with a FedEx mistake, they arrived quickly. A+! 08-01-16
3. Good buyer, prompt payment, valued customer, highly recommended. 07-16-16
4. AAAA plus 07-22-16
5. Good seller A pleasant cooperation 06-05-16

Seller cylinderheapar:

• city: Salt Lake City, Utah
• zipcode: 84121

3856723 Is Similar To:

• 102hp 3813516 1961 1963 Corvair Hp Heads (82.5% similar) These are bare heads and will need rebuild. Excellent condition used 102HP heads these are a matching pair of unmolested original used corvair heads could be bored to fit the later cylinders for a high compression heads...(July 2nd, 2016)
• 3817287 Corvair Turbo Heads (56.7% similar) All rebuilt and one needs valves and springs. Price is for left and right head. 1963 corvair turbo heads...(November 22nd, 2015)
• 3856632 Gm Corvair Cylinder Heads For Rebuild (49.4% similar) The intake exhaust valves are original to heads. Please review the photos provided for this listing to get an idea of condition these heads. You are purchasing the following: 1964 corvair - cylinder heads 110HP gm for rebuild these in good shape, but they will need to be cleaned up and rebuilt. ...(February 11th, 2019)
• Engine Heads Corvair 3856762 Cylinder 180 High Turbo Hp Performance Corsa (28.3% similar) These came off a running engine that I was going to do work on. Number one set of turbo heads. The heads have the 65 bolt pattern. I started cleaning the heads and decided on a different project. You be the judge. I would have them cleaned and valve job done to be on the safe side. So everything is ...(April 24th, 2015)
• 3878565 Nos Corvair 140 Heads Big Boss Complete (48.3% similar) Just imagine owning a pair of new hard to find heads with zero heat cycles. These are the hard to find big boss top cover holes, desired for the A/C compressor bracket. Up for offer is a pair of nos 140 heads. Comes with nos valves, springs, retainers, keepers, shims, rocker arms, carb studs, ...(September 18th, 2016)
• 3878568 Corvair 180 Hp Turbo Heads (56.8% similar) Corvair turbo 180 hp heads...(April 11th, 2016)
• 3878570 Pair Of Rebuilt Corvair 140 Heads (49.4% similar) These heads have the larger bolt holes on the top so they are from a 66 or 67 engine. On Jul at PDT, on Jul at PDT, here. Please look at the pictures and ask any questions. I am in the process of expanding my business by offering more engine parts. The spark plug holes are perfect and the heads have...(October 20th, 2015)
• 3878566 General Motors 63 Corvair Heads (53.2% similar) Used 63 corvair heads minor damage in one cylinder and i1 small broken fin good rebuild able condition part left and right heads...(November 2nd, 2016)
• 3883864 Gm Pair Assembled Nos Cylinder Heads W Nos Valves 1966-69 Corvair 140 (30.8% similar) Heads were power washed, assembled and then wrapped and are ready to install. Intake ports have been blended to seat and exhaust ports have mild porting at guide boss and blended to seat and it is something I do to all the heads I build. You are buying a pair of assembled nos gm cylinder heads for ...(November 21st, 2015)
• Chevrolet 3878569 Corvair 95 Horsepower Cylinder Heads 66-67 With Large Bolt Holes (41% similar) Valves, tubes and head gasket surfaces are in good condition. The rivets need to be drilled out. Good cores for rebuilding. The choke coils are missing. Corvair 95 horsepower heads. Some pitting in 2 combustion chambers of the rear cylinders...(January 2nd, 2025)
• Chevrolet 3886240 Used Pair 1962 1963 Gm Corvair Aluminum Cylinder Heads 3813512 3886246 (45.3% similar) Used pair 1962 1963 gm corvair aluminum cylinder heads casting numbers 3813512 and 3886246, good condition for used...(May 7th, 2026)