Auto Dynasty Aluminum Bare Cylinder Head Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Chamber
Condition: New
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Availability:
In Stock.
Arrives
Tuesday, Nov 11
Size: 1-Piece
Features
- Vehicle Compatibility - Cylinder Head Compatible with SBC engines 302/327/350/383/400 small block chevy engines up to 1986. Not compatible with Vortec style intake manifolds
- High-Performance - Featuring a 200cc intake runner, this cylinder head enhances power while retaining stock compression for 1970 and earlier models
- Optimized Combustion - With a 68cc combustion chamber and square intake and exhaust ports, this design ensures efficient airflow and optimal performance
- Lightweight Design - Lighter than iron heads, each head weighs just 10.33kg. Featuring a 3-angle valve seat and a straight spark plug angle, this design ensures superior performance and efficiency
- Product Specifics - Intake Valve Diameter: 2.020inch | Exhaust Valve Diameter: 1.600inch | Intake Port Volume: 200cc | Combustion Chamber Volume: 68cc | Intake Port: Square | Exhaust Port: Square | Spark Plug Angle : Straight
Manufacturer: Auto Dynasty
Brand: Auto Dynasty
Model: Chevy
Item Weight: 22 pounds
Package Dimensions: 22 x 10 x 7 inches
Item model number: SBC 302/327/350/383/400
Exterior: Bare
Manufacturer Part Number: AD-CYLH-SBC-350
Position: Front
Special Features: 3-Angle Valve Seat, Pre-Drilled Accessory Bolt Holes
Date First Available: September 20, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 2-Piece
I bought these a couple years ago and just got around to use them. They were the cheapest aluminum heads at the time I bought them. I used 1.7 height springs with standard height valves with 510 lift. They’re installed on a 383 stroker
Reviewed in the United States on April 13, 2025 by Abel A. Abel A.
Size: 2-Piece
I purchased these heads to replace 1.94 camel hump heads on my SBC 327. Overall these aluminum heads look and appear to be good quality. Assembly of these heads went smoothly when I purchased a head improvement kit from Competition Products. I DID NOT run into any alignment issues with pushrods or guideplates. I did lose about an inch of vacuum at idle with these heads however, I can only assume this was due to the larger intake runners and valves. Overall these heads have performed well and only time will tell their durability. Definitely a great option for the "Garage Build" enthusiast and a good alternative to the high-end brand name.
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Reviewed in the United States on October 9, 2021 by Matthew Chavez Matthew Chavez
Size: 2-Piece
Did not flow well out of the box. Similar to a stock Vortec. Response well to porting. Needs work to perform.
Reviewed in the United States on October 11, 2023 by Adolph Skrobarczyk
Size: 2-Piece
Castings a little rough but not terrible. Will buy again
Reviewed in the United States on July 9, 2023 by D A Walker
Size: 2-Piece
Is anyone else having issues with their valves fitting? It seems entirely too tight for the valves. Almost like I need to drill it out to a bigger size obviously I’m not going to, if I do I’ll have a machine shop do it, but I’m wondering why my factory valves aren’t fitting or if I’m the only one having this issue
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Reviewed in the United States on November 26, 2024 by Nathaniel boger
Size: 2-Piece
Exactly it’s what I was looking for. Very excellent product for the money. They do have a little rough inside the chambers but nothing extreme I wanted to report them anyway.
Reviewed in the United States on February 22, 2022 by Amazon Customer
Size: 1-Piece
Nice! Quick delivery, good price
Reviewed in the United States on March 26, 2022 by Ralph H. Ridgeway
Size: 1-Piece
It came in sooner then expected and they fit perfect now I just need the springs and everything else
Reviewed in the United States on November 29, 2019 by Francisco