1/28/2026
CYLINDER HEADS
The Rocket-428 High Compression Cylinder head
1/28/2026
- NEWS -
Contact with foundry and machine shop have been finalized and the
Rocket 428-cylinder head project for 2026 has begun.
People on the list will soon receive an Invoice showing the deposit due and the expected bottom line . . . Delivery time frame has NOT been firmly established.
A guess could be May-ish
THE ROCKET 428 HEAD PROJECT IS A GO.
38+ names are now on the Production List.
I will be closing the list on February 13th.
The price will jump $200 for all orders received after 2/13/2026
- NEWS -
Contact with foundry and machine shop have been finalized and the
Rocket 428-cylinder head project for 2026 has begun.
People on the list will soon receive an Invoice showing the deposit due and the expected bottom line . . . Delivery time frame has NOT been firmly established.
A guess could be May-ish
THE ROCKET 428 HEAD PROJECT IS A GO.
38+ names are now on the Production List.
I will be closing the list on February 13th.
The price will jump $200 for all orders received after 2/13/2026
THE PROJECT IS A GO.
Names that do not follow through with a deposit
within 15 days of invoice date will be removed
from the list and head numbers will be adjusted.
The casting and machine time frame is usually 4-5 months.
Price TBD
To get on the list you may
call: 513-724-9000
email: [email protected]
mail to: Scalded Dog Speed Parts
3860 Cain Run Rd
Batavia OH 45103
with your full contact info.
You will be invoiced for the deposit.
DEPOSITS:
Deposits are non-refundable once casting order has
been made. Full refund if we cannot produce.
All cost and time suggestion are approximate
and could change as we move forward.
Names that do not follow through with a deposit
within 15 days of invoice date will be removed
from the list and head numbers will be adjusted.
The casting and machine time frame is usually 4-5 months.
Price TBD
To get on the list you may
call: 513-724-9000
email: [email protected]
mail to: Scalded Dog Speed Parts
3860 Cain Run Rd
Batavia OH 45103
with your full contact info.
You will be invoiced for the deposit.
DEPOSITS:
Deposits are non-refundable once casting order has
been made. Full refund if we cannot produce.
All cost and time suggestion are approximate
and could change as we move forward.
ROCKET-428 CYLINDER HEAD
356-T6 Aluminum, 7:1 CR
Twin 8 plugs - Default)
this head wins hill climbs!
The Rocket's combustion chambers are a match of our very successful Lion Speed Head IV.
The thick walls hold heat steady for even firing and extra metal is available to those that want to reshape to their own designs. The spark plug positions are designed for maximum flame front and have proven power on the dyno. Plugs on the left have more power.
The thick walls hold heat steady for even firing and extra metal is available to those that want to reshape to their own designs. The spark plug positions are designed for maximum flame front and have proven power on the dyno. Plugs on the left have more power.
