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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 51 reviews
Condition: New
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$186.88 Why this price?

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Auto Dynasty
Arrives Jan 1 – Jan 3
Order within 19 hours and 53 minutes
Available payment plans shown during checkout

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

If you place your order now, the estimated arrival date for this product is: Jan 1 – Jan 3

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing 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
    • Looks great, shipped quick, just issues with valves?
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 ... show more
Reviewed in the United States on November 26, 2024 by Nathaniel boger
    • 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
    • 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
    • Good buy
Size: 2-Piece
These are a good starting point to build a 1.6 Horsepower per cubic inch, with a small intake and exhaust valves, big ports are not always fast, it's the combination of parts and knowledge.
Reviewed in the United States on August 3, 2024 by KENT MCMAHON

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