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Auto Dynasty

Straight Aluminum Bare Cylinder Head Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc

    • Based on 48 reviews
Condition: New
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Size: 1-Piece


Features

  • High grade aluminum, bronze valve guides, hardened seats, advance port design for greater air flow
  • This head is 200cc intake runner with a 68cc combustion chamber, 68cc combustion chambers improve performance and retains stock compression on 1970 and earlier
  • Intake Valve Diameter: 2.020" ; Exhaust Valve Diameter: 1.600" ; Intake Port Volume: 200cc
  • Combustion Chamber Volume: 68cc ; Intake Port: Square ; Exhaust Port: Square
  • Lighter than Iron Heads. Each Head weighs 10.33kg ; 3-Angle Valve Seat ; Spark Plug Angle : Straight

Manufacturer: ‎Auto Dynasty


Brand: ‎Auto Dynasty


Model: ‎‎AD-CYLH-SBC-350


Item Weight: ‎22 pounds


Package Dimensions: ‎22 x 10 x 7 inches


Item model number: ‎‎AD-CYLH-SBC-350


Exterior: ‎Bare


Manufacturer Part Number: ‎AD-CYLH-SBC-350


Position: ‎Front


Special Features: ‎Pre-Drilled Accessory Bolt Holes, 3-Angle Valve Seat


Date First Available: September 20, 2018


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • Quality Cylinder Head
Size: 2-Piece
Review Image by Matthew Chavez Matthew Chavez
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. ... show more
Reviewed in the United States on October 9, 2021 by Matthew Chavez Matthew Chavez
    • Heads
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
    • Needs porting
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
    • Very nice product for the money
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
    • Find a different vendor. These heads will need to be decked.
Size: 2-Piece
Review Image by Kent Kent
Review Image by Kent Kent
The decks on both heads were not flat. My machinist verified and had to deck them. I know of one other person who bought these heads from this vendor who had the same issue. There is a YouTube video titled "Sbc eBay heads unboxing and initial inspection" that shows the issue in more detail.
Reviewed in the United States on March 4, 2022 by Kent Kent
    • As described
Size: 1-Piece
Nice! Quick delivery, good price
Reviewed in the United States on March 26, 2022 by Ralph H. Ridgeway
    • Great and fast shipping
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
    • Glad I checked fitment before complete assembly of heads.
Size: 1-Piece
Four pushrod holes were not correctly machined. They were not centered. Could not get pushrod through. Had to set up,and Remachine both heads. Liked the looks and rest of machining.
Reviewed in the United States on September 8, 2019 by Larry beard

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