Jul 4

Jul 4 - Jul 5

4th of July Boat Races

SE

Zimovia Strait

Wrangell, AK

Jul 5

Jul 5 - Jul 6

2025 Madison Regatta

INB-UNL

Ohio River

Madison, IN

Jul 11

Jul 11 - Jul 13

Les Régates de Valleyfield

SE-INB

St-Laurence River

Salaberry-de-Valleyfield, CN

Jul 12

Jul 12 - Jul 13

Black Lake Regatta Inboard Summe...

VINTAGE-INB

Black Lake

Olympia, WA

Jul 12 - Jul 13

Rock Falls River Chase

MOD-SO-J CLSES

Rock River

Rock Falls, IL

Jul 12 - Jul 13

Leo Fry Memorial

OB RR

Rogue River

Agness, OR

Jul 12 - Jul 13

Wild Ones Regatta

SO;D-J CLSES

Grass Lake

Grass Lake, MI

Jul 12 - Jul 13

Fulton Championships

MOD-SO-J CLSES

Lake Neatahwanta

Fulton, NY

Jul 12 - Jul 13

Midsummer Race at Salt Spring

INB-PRO-KPH-MOD-SO-OPC-J CLSES

Salt Spring Reservoir

Copperopolis, CA

Jul 17

Jul 17 - Jul 20

Ocean Cup - Pompano Beach, FL ar...

OS

Atlantic Ocean

Pompano Beach, FL

Jul 19

Jul 19 - Jul 20

2024 ALTON MIDWEST NATIONALS

OPC

MISSISSIPPI RIVER

Alton, IL

Jul 19 - Jul 20

Thunder on the Choptank

INB

Choptank River

Cambridge, MD

Jul 19 - Jul 20

Northland Mardi Gras Gran Prix

OPC

Flambeau River

Ladysmith, WI

Jul 23

Jul 23 - Jul 27

2025 APBA/ USTS PRO National Cha...

PRO-KPH;N

Lake DePue

DePue, IL, IL

Jul 25

Jul 25 - Jul 27

Leonardtown Bash on the Bay

VINTAGE

Breton Bay

Leonardtown, MD

Jul 25 - Jul 27

APOLLO APBA GOLD CUP

SE-VINTAGE-INB-UNL

McNary Pool, Columbia River

Kennewick, WA

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New 2.5 Stock Cast Iron Head Program

By: Don Melillo | Inboard Racing | Jun 14, 2021

Dutch wanted to pass along information about replacement heads for the 2.5 stock class. See below, any questions, please contact Dutch or Bo himself. He is wanting to help out Inboard racing.

NEW 2.5 STOCK CAST IRON HEAD PROGRAM

Boport Racing Heads is cooperating with APBA Inboard to be the supplier of the heads. Dyno testing and on the water testing showed the Boport Cast Iron head to be competitive with the aluminum head. If you are interested in purchasing one the procedure is below.

Ship a machinable cast iron D port core to Boport Racing Heads. Head only no valves etc.

If the head is usable (not cracked etc.) Boport will complete the APBA/Boport approved CNC machining program. The current cost is apx. $1275 plus shipping both ways.

The CNC ported head will be shipped to you for assembly. You are responsible for valves on up to the cam.

If you desire Boport Racing Heads will do assembly work at an additional cost. Contact Bo for additional info. Bo is a good guy trying to help APBA Inboard and the 2.5 stock class.

Contact Information

Boportservices@yahoo.com

755 884 3000

Boport Racing Heads

4825 Convair Dr. #22

Carson City Navada 89706